HTV Silicone Rubber
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Quality Guaranteed HTV Silicone Rubber Raw Material With High Heat Resistance TBL-500A Series
The hardness range of this series is 30-80A, with heat resistant, translucent。
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High transparent food grade HTV silicone rubber raw material TBL-500 Series
The hardness range of this series is 30-80A, with the characteristics of high transparency.
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High Tensile Strength Translucent Molding HTV Silicone Rubber with good resilience TBL-501 Series
Tian Bao Li disclaims liability for any incidental or consequential damages.
The main characteristics and uses of silicone rubber
Silicone rubber polymer molecule is a chain structure formed by Si-O (si-o) bond, its main composition is high molar mass linear polysiloxane. Because of the Si - O - Si key is the basic key type, main connection methyl silicon atoms, the introduction of very small amounts of unsaturated side chain groups and small molecular inter-atomic forces, molecular spiraling structure, methyl outwards is arranged and can rotate freely, made of silicone rubber is better than other ordinary rubber heat resistance, electrical insulation, chemical stability, etc. Typical silicone rubber is polydiformaldehydesiloxane, has a helical molecular configuration, its intermolecular force is small, so it has good resilience, and points to the helical outside the formaldehyde base can rotate freely, so that the HTV silicone rubber raw material has unique surface properties, such as hydrophobicity and surface anti-viscosity.
Heat resistance: silicone rubber has much better heat resistance than ordinary rubber, can be used almost forever at 150°C without performance change; It can be used continuously for 10,000 hours at 200°C. It can also be used for a period of time at 350 °C. Widely used in heat resistant occasions: thermos sealing ring, pressure cooker ring heat resistant handle
Cold resistance: ordinary rubber delay is -20°C ~ -30°C, that is, silicone rubber in -60°C ~ -70°C still has good elasticity, some special formula of silicone rubber can also withstand very low temperature. Cryogenic sealing ring
Weather resistance: ordinary rubber degrades rapidly under the action of ozone produced by corona discharge, while silicone rubber is not affected by ozone. And long time in ultraviolet light and other climatic conditions, its physical properties also only small changes. Sealing material for outdoor use
Electrical properties: silicone rubber has high electrical resistivity and its resistance remains stable over a wide range of temperatures and frequencies. At the same time, silicone rubber has good resistance to high voltage corona discharge and arc discharge. High voltage insulators, TV high voltage caps, electrical components, other
Electrical conductivity: when conductive filler (such as carbon black) is added, silicone rubber has a keyboard conductive contact point
Thermal conductivity: when adding some thermal filler, silicone rubber has thermal heat sink thermal gasket photocopier, fax machine thermal roller
Radiation: radiation resistance of silicone rubber containing phenyl greatly improves electrical insulation cable connectors for nuclear power plants
Flame retardant: silicone rubber itself combustible, but add a small amount of flame retardant agent, it has flame retardant and self-extinguishing; And because silicone rubber does not contain organic halides, it does not emit smoke or poisonous gas when burning. All kinds of fire strict occasions
Air permeability: silicone rubber film has better air permeability than ordinary rubber and plastic waxing film. Another characteristic is that it has strong selectivity to different permeability. Gas exchange membrane medical supplies artificial organs.
Application of silicone rubber
The main application areas of solid silicone rubber products include aerospace, automotive industry, communication industry, office supplies, instrumentation, industrial lighting, power industry, home appliances, food industry, medical and health care.
1. Aerospace：
Silicone rubber products have excellent high and low temperature resistance, radiation resistance, aging resistance, electrical insulation and non-toxic, physiological inertia, widely used in aerospace aircraft. For example, aircraft and aircraft used in the wire coating, hydraulic system, exposed system, engine cylinder, pilot and astronaut life support system of various sealing rings, hose, hose, rubber tank and capsule, electrical insulation bushing, hot air conduit are made of silicone rubber products.
2. The car industry
Silicone rubber products have unique heat and cold resistance and electrical insulation properties, in the automotive engine system, exhaust system, fuel system and other aspects have been more than 40 applications. Such as spark plug cover, battery connector, mirror, fixed glass, windshield, reflector, exhaust pipe and other sealing, ignition cable, fabric reinforced silicone rubber products air bag, car keys, electrical system protection cover, automotive large gasket are all used silicone rubber products materials
3. Communications industry
Silicone rubber products have a lot of applications in various telephone, mobile phone, walkie-talkie keys, sheath and antenna of modern communication. Silicone rubber products both high and low temperature resistance, aging resistance, good elasticity, feel good, and non-toxic and tasteless can add a variety of different pigments, and can be modified as conductive rubber products
4. Office supplies
Silicone rubber products are not only good electrical insulation materials, but also can be used as conductive rubber products. This property makes it widely used in modern office keys, cots, wire cladding and so on.
5. Instrumentation, industrial lighting
Silicon rubber products in the insulation, flame retardant, sealing, shock absorption, connection and other aspects of instruments and meters, using a variety of molding, injection, on the spot forming sealing rings, gaskets, conductive connectors, now lighting various high-pressure halogen lamps and seals.
6. Electric power industry
The emergence of silicon rubber products provides a safe, energy-saving and environmentally friendly new material for the transformation of China's modern power grid and electrified railway. In recent years, the actual consumption of this industry has been doubling year by year.
7. Wire and cable
High and low temperature resistance, high insulation requirements of wire and cable, Marine wire and cable, aerospace wire and cable, heating wire and cable, ignition wire and cable, non braided wire and cable, cable connector, sheath, nuclear device wire and cable coating materials are the application direction of silicone rubber products. Modern commonly used electrical appliances, modern office supplies, such as computers, air conditioners and other wires have been changed to silicone rubber products. In the future, the application of silicone rubber products in wire and cable will be more widely.
8. Household appliances
Because silicone rubber products are a non-toxic, colorless, tasteless, aging resistance, high and low temperature resistance, electrical insulation, a good physiological inertia of an elastomer, suitable for furniture use, has been widely used in a variety of household appliances.
9. The food industry
Silicone rubber products are harmless to human body and can be used in food production line, kitchen cookware and household small equipment such as coffee maker, beverage vending machine, microwave oven, oven, steam cookware, thermos flask, butterfly valve, sterilizing cabinet, air pressure thermos bottle and other sealing materials, baby's pacifier, etc.
10. The health care industry
Silicone rubber compound introduction
Silicone rubber mixing rubber is a kind of excellent comprehensive properties of synthetic rubber, excellent thermal stability, high and low temperature resistance, can at 60 ℃ ~ + 250 ℃ condition long-term work, ozone resistance, weather resistance and good electric performance, corona resistance, arc, edm is extremely strong, with chemical stability, weathering resistance, radiation resistance, with physiological inertia, permeability is good, It can be widely used in aviation, cable, electronics, electrical appliances, chemical industry, instrument, cement, automobile, construction, food processing, medical equipment and other industries, and used for deep processing of molding, extrusion and other machinery.
Mixing rubber is made by adding raw silicone rubber to double roller mixer or closed kneader and gradually adding silica, silicone oil and other additives refined repeatedly.
Mixing rubber molding needs to be under the action of vulcanizing agent, the application of a certain temperature and pressure (solid is needed, in order to prevent the formation of bubbles). For example, HTV needs to be around 165 ° C and LSR needs to be around 140 ° C.
Two production methods of HTV silicone rubber
HTV silicone rubber molding process: HTV silicone rubber products, such as HTV silicone rubber for sleeve products, HTV slicone rubber for gasket, etc are usually added to the high temperature mold (double 25 or double 24) silicone vulcanization agent of the compound, and then through the plate vulcanization machine pressure, high temperature sulfur into solid forming
Silicone rubber for extrusion molding process: Extruded silicone rubber products are usually extruded by extrusion machine silica gel forming, is a continuous molding process, can be suitable for double 24 sulfide solid silica gel or platinum sulfide agent catalyzed liquid silicone rubber production and processing. It is a process of making semi-finished products of various shapes continuously under the interaction of silicone rubber in the cylinder of the silicone extruder and the rotating screw. It can be used to process silica gel tube, insulating sleeve of silica gel wire and cable and other silicone rubber products.
Liquid silicone rubber and solid silicone rubber difference
Silicone rubber can be divided into liquid silicone rubber and solid silicone rubber according to the type of existence, the physical properties of the two are different because of the different morphology, and then there are great differences in application, this paper will discuss the difference between liquid silicone rubber and solid silicone rubber.
First, solid silicone rubber, vulcanized silicone rubber products and silicone rubber are solid, we talk about solid silicone rubber here refers to silicone rubber. This kind of silicone rubber is also called high temperature silicone rubber. No matter what kind of vulcanization agent is used, it needs to be vulcanized at high temperature to be completely vulcanized and get ideal physical properties. After curing, solid silicone rubber can be made into a variety of silicone products, generally have better physical properties. After secondary vulcanization, solid silicone rubber products can generally pass THE FDA test and reach the food grade standard. Therefore, solid silicone rubber can not only be used to produce industrial products, but also in food contact applications.
There are many varieties of liquid silicone rubber, but it is not vulcanized original silicone material, are liquid. Because of its sulfur mobility, liquid silicone rubber is easier to form and can be easily moulded to replicate the product, which is not possible with solid silicone rubber. Liquid silicone rubber can also be made into adhesive, used to bond a variety of materials. Most liquid silicone rubber can be vulcanized at room temperature.
Liquid silicone rubber can be divided into condensed liquid silicone rubber and liquid silicone rubber by reaction type. Condensed silicone rubber generally can not reach the food grade standard, and the silicone rubber can generally reach the food grade standard, and has very good physical properties, so made of liquid silicone products, used in all walks of life.
Effect of curing time on silicone rubber products
Vulcanization time is too short: forming out of silicone rubber products may appear unripe phenomenon; Vulcanization time is too long, the product will appear bubbling or edge explosion phenomenon.
The vulcanization time of silicon rubber products is directly related to the quality of products: when the vulcanization time is too short or too long, it will lead to poor products. Vulcanization time is too short: forming out of silicone rubber products may appear unripe phenomenon; Vulcanization time is too long, the product will appear bubbling or edge explosion phenomenon. The whole molding vulcanization process is very difficult to control, especially some of the more complex structure of silicon rubber products mold, vulcanization time and vulcanization temperature are very sensitive.
So in the vulcanization of silicon rubber products, we must master the vulcanization time, to avoid causing some unnecessary losses, thus affecting the quality and production efficiency of silicon rubber products
Silicone rubber post cure
post cure of silicone rubber is to remove the low volatiles in silicone rubber and the by-products produced during the vulcanization of peroxide vulcanizing agent. post cure can make the size of the product more stable and improve the temperature resistance. For the production process of peroxide as vulcanizing agent, it is recommended to use post cure to remove the acidic by-products, especially when the final application environment temperature is higher. In addition, silicone products with acidic by-products removed will be more environmentally friendly. For example, some silicone products requiring FDA food-grade testing can be obtained by post cure.
Electric heating and high temperature gas heating ovens can be successfully used in the post cure. For every 100KG silicone product, the air flow rate of the oven should be maintained at least 100L/ min. In the post cure, the exposed area of the product should be increased as far as possible, and the drying setting temperature should be at least 10°C higher than the actual temperature. In general, the temperature of siliocne vulcanization is 180°C for 4 hours. Some customers want to quickly use 180°C, four hours of post cure. In addition, for products thicker than 2mm, a gradual heating method is recommended to reduce the problem of foaming on the surface of the product.
1. How much can the hardness of silicone products do?
silicone products process is different, soft hardness is not the same, the hardness of silicone products is generally 30-80 degrees, if it is liquid silicone process, can do low degree of silicone products. For example, 0 degrees to 20 degrees, even if the hands are very sticky, this type of silicone products are generally very few, and the development of a set of liquid silicone mold is expensive. Liquid process to do more about 10 degrees to 20 degrees, for some silicone products, silicone products made by liquid process is not good from the disassembly. Because of the material, this leads to a problem is the product burr edge is not smooth, the appearance of burr. So the liquid process is suitable for making low degree of silic a gel products, and does not require a very strict self-disassembly.
2. What's the difference between silicone rubber and rubber?
The scope of use is different: the performance of rubber is often not as comprehensive as silicone rubber products, silicone rubber is used in the home, used in catering, and rubber, is a toxic substance, rarely used in life, so now rubber products are basically used in some industrial manufacturing.
Different structure: silicone rubber refers to the main chain is composed of silicon and oxygen atoms alternately, silicon atoms are usually connected with two organic groups of rubber. Ordinary silicone rubber is mainly composed of silicon-oxygen chains containing methyl and a small amount of vinyl.
3. How much can silicone rubber withstand temperature?
Silicone rubber has excellent heat resistance, cold resistance, dielectric property, ozone resistance and aging resistance. The outstanding performance of silica gel is the use of a wide temperature, can be in -60°C (or lower temperature) to +250°C (or higher temperature) under the long-term use. Adding temperature resistant agent can increase the temperature resistant effect of silicone rubber, up to 300°C
4. How to distinguish the fumed silicone and precipitation silicone:
There are two kinds of silicone: one is precipitation silicone rubber; One is fumed silicone rubber.
Before vulcanization: The fumed silicone is generally transparent or translucent, precipitation silicone white as rice cake.
After vulcanization: zigzag products, fumed silicone has no significant change, precipitation adhesive no matter what color of the product, all show obvious white creases.
5. What's the difference between silicone rubber vulcanizing agent D2，4 ， D2，5 and platinum
D2，4 has the advantage of low decomposition temperature, decomposition speed, so it is a common vulcanizing agent for silicone rubber extrusion molding. But because the decomposition temperature is low, so the coking performance is not good, so the amount of as little as possible. And toxic, will affect the heat resistance of silicone rubber.
D2，5 high decomposition temperature, good coke performance. The compression deformation of silicone rubber is lower and the elongation is higher when using D25. In addition, the amount of peroxide more than the appropriate amount will make the elongation of silicone rubber, tear strength and other properties decreased, but much better than D24. D24 is generally used for extrusion and D25 is generally used for molding.
Platinum sulfidation refers to the addition reaction of silicone oil containing hydrogen and vinyl double bond in the presence of catalyst, so as to achieve the purpose of crosslinking sulfidation. Platinum vulcanization silicone tube after five peculiar smell, high transparency, low shrinkage, product tensile strength, tear strength, resilience is greatly improved.
6，How to distinguish LSR silicone rubber and HTV silicone products
Liquid silicone products high transparency, no odor, the product has a glue injection edge, no obvious mold and hair edge defects, the appearance is more delicate and beautiful. The solid silicone product has low transparency, the smell of curing agent or other curing agent, the product is not injected with glue, the mold is closed up and down, and the parting part of the product has a certain mold off line.
Silicone rubber often occur problems and solutions
1, silicone rubber products lack of material:
Cause 1: The weight of silicone rubber is light or the length of silicone rubber is short. Solution: Weight the material appropriately or change the length.
Cause 2: the machine pressure is insufficient or the heating plate is not smooth, deformation.
Solution: increase the machine pressure or replace the die pad.
Cause 3: High mold temperature causes poor fluidity of silicone rubber.
Solution: appropriately reduce the mold temperature production
Cause 4: The operation speed of employees is too slow, which causes the surface of silicone rubber to cure.
Solution: speed up the operation
2. Silicone Rubber wind
Cause 1: The thickness of the silicon rubber is too thin, so the KEY covers the air and cannot be discharged.
Solution: modify the thickness of silicone rubber to make the cavity air easy to exclude
Cause 2: the vulcanizing agent is not evenly dispersed or the silicone rubber expires.
Solution: remix silicone rubber.
Cause 3: The exhaust times were insufficient or the exhaust spacing was not set.
Solution: adjust the number of times or exhaust spacing.
Cause 4: the pressure is too fast and the temperature of the real mold is too low, and the curing time is too short.
Solution: extend the up and down stop time or appropriately increase the mold temperature and curing time.
3. Bubbles appear in silicone rubber
Cause 1: Silicone rubber has air bubbles, or water.
Solution: remix silicone rubber.
Cause 2: The mold temperature is too low or the curing time is insufficient.
Solution: adjust the temperature of the mold or extend the curing time.
Cause 3: Mould structure is unreasonable.
Solution: increase the mold exhaust air or exhaust groove.
Cause 4: Cavity gas accumulation.
Solution: Appropriate water spraying to strengthen silicone rubber protection, help exhaust.
Cause 5: The exhaust parameters are not set properly. As a result, the air in the mold cavity is not excluded.
Solution: Increase the exhaust times or adjust the exhaust spacing
4. The burrs of silicone rubber products are difficult to clean
Cause 1: The weight of silicone rubber is too heavy or the mold temperature is too high.
Solution: reduce the weight or reduce the temperature of the mold.
Cause 2: The feeding operation speed is too slow.
Solution: speed up the feeding speed.
Cause 3: The exhaust parameters are not set properly.
Solution: Set exhaust parameters.
Cause 4: Silicone rubber has poor edge tearing.
Solution: adjust the silicone rubber formula.
Cause 5: The tool edge of the die is damaged.
Solution: repair the mold.
5. Breakage of silicone rubber products
Cause 1: The product structure of the mold is complex.
Solution: master the operation skills, spray a little demolding water to assist demolding.
Cause 2: The curing time is too long and the temperature is too high, which causes the product to become brittle.
Solution: appropriately reduce the temperature of the mold or shorten the curing time,
6. Silicone rubber products appear white
Cause 1: The mold temperature is low or the curing time is insufficient.
Solution: increase the temperature of the mold or extend the curing time.
Cause 2: the amount of a compound exceeds its solubility in the reglue.
Solution: adjust the silicone rubber formula.
Cause 3: The vulcanizing agent is not evenly distributed.
Solution: fully mixed silicone rubber.
7. Silicone rubber products appear fracture stratification
Cause 1: Use two different kinds of silicone rubber.
Solution: Different kinds of silicone rubber can not be mixed.
Cause 2: The release agent was sprayed too well, resulting in poor bonding.
Solution: control the concentration ratio of demudding water, spraying attention to the amount and to blow clean.
Cause 3: The way of feeding is not right or the temperature is high, resulting in poor fluidity of silicone rubber and poor welding.
Solution: change the feeding mode or reduce the temperature of the mold, prolong the curing time.
8. Silicone rubber products, elasticity and spring back
Cause 1: The reason for the high elasticity is the heavy silicone rubber, the machine pressure is too small, the mold temperature is too high, the curing time is too long, and the feeding position is not reasonable.
Solution: properly reduce the weight or adjust the machine pressure, reduce the temperature of the mold, shorten the curing time, adjust the unloading position, even according to the actual situation of a KEY deviation to dig material, pad paper and so on.
Cause 2: Low elasticity is caused by low mold temperature, too high machine pressure, light blanking, short vulcanization time, and unreasonable lock of blanking position.
Solution: appropriately increase the weight of the cutting, improve the temperature of the mold. Reduce the machine pressure, prolong vulcanization time, adjust the cutting position.
TBL SILICONE- Representative cooperation introduction
Foshan Tian Bao Li Silicon Engineering Technology Co,.LTD established in 2011.
1. HTV Silicone Rubber for O-Ring
Silicone rubber O-ring is a normal silicone rubber finished product. Almost every silicone rubber product factory can produce it.
In 2015, one day a company contact our company sale manager have receive a phone that a silicone rubber product company say he get a large foreign order. Because we signed a non-disclosure agreement with the customer, we will use A Company to represent customer,
The next day, Tian Bao Li Send the car to the airport to pick up the A company representatives. Tian Bao Li sale manger bring the professional HTV silicone rubber technicians and professional HTV silicone rubber production manager to waiting for A company representatives in meeting room. We first play the company introduce video to A company representatives to show them our company introduce video, and our sale manager use PPT to show the needs of A company, won rounds of applause from A company representatives. After then, Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager brings the A company representatives to Tian Bao Li first floor produce workshop, although 24 hours HTV Silicone Rubber Automatic Production Line is the Tian Bao Li confidential, but Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager can bring customer to watch the 24 hours HTV Silicone Rubber Automatic Production Line peripheral. Then Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager brings the A company representatives to Tian Bao Li office building fourth floor Quality Department, Quality Department including HTV silicone rubber quality test, Liquid silicone rubber quality test, Industry silicone rubber quality test, and testing of various purchased raw materials.
A company’s representatives very satisfied with the test method of our test equipment. Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager brings the A company representatives to the building of up to workshop, Tian Bao Li laboratory is in the building of workshop building. Tian Bao Li have HTV Silicone Rubber laboratory, Liquid silicone rubber laboratory, Industry silicone rubber laboratory, three laboratories are both Independent and closely connected. A company’s representatives are very satisfied with our equipment, technical staff and facilities. Then Tian Bao Li sale manger bring the professional HTV silicone rubber technicians and professional HTV silicone rubber production manager brings A company’s representatives to 24 hours HTV Silicone Rubber Automatic Production Line feeding place, to show the A company’s representatives how Tian Bao Li 24 hours HTV Silicone Rubber Automatic Production Line how feeding.
Tian Bao Li sale manger bring the professional HTV silicone rubber technicians and professional HTV silicone rubber production manager shows the A company’s representatives this feeding hole put which kind of HTV silicone rubber raw materials, that feeding hole put which kind of HTV silicone rubber raw materials, tell A company’s representatives why separate to feed the HTV silicone rubber raw materials, and impact on HTV silicone rubber. Tian Bao Li sale manger bring the professional HTV silicone rubber technicians and professional HTV silicone rubber production manager tells the A company’s representatives this 24 hours HTV Silicone Rubber Automatic Production Line principle of operation, HTV silicone rubber raw materials how to be produce to HTV silicone rubber, use this 24 hours HTV Silicone Rubber Automatic Production Line for HTV silicone rubber influence of characteristics.
A company’s representatives watch this 24 hours HTV Silicone Rubber Automatic Production Line in first time, they breathtaking for Tian Bao Li 24 hours HTV Silicone Rubber Automatic Production Line. Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager proposal brings A company’s representatives to have a lunch, come back in the afternoon to talk in the meeting room for discuss the order details.
After lunch, Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager brings back the A company’s representatives to Tian Bao Li meeting room, the two sides revolve around O-ring order to discuss can Tian Bao Li finished the order within the A company specified time, can Tian Bao Li HTV silicone rubber can ensure to meet the A company's order quality requirements, can Tian Bao Li give the A company's HTV silicone rubber appropriate price, and can Tian Bao Li offer A company HTV silicone rubber after-sales service.
After an afternoon of intense discussions, A company reached a preliminary cooperation intention with us, A company invite Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager to visit their company after three days.
Tian Bao Li Company gladly agreed and arranged to go to their company three days later to discuss the final cooperation, and bring the sample to A company and testing on site. Tian Bao Li sale manger. professional HTV silicone rubber technicians and professional HTV silicone rubber production manager shakes hands with A company’s representatives and sent them to have dinner and then back to the hotel for rest. Tian Bao Li still sent the car to pick up the A company’s representatives in hotel in next day morning and sent they back to Guangzhou Airport.
After three days. Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager takes the airplane to the A company’s city, A company’s representatives bring Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager from airport to A company factory.
A company’s representatives bring Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager to their meeting room for the team members who gave a brief introduction to this project.
A company’s representatives bring Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager to A company production workshop. Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager gives the sample to the A company HTV silicone rubber production worker takes the HTV silicone rubber from box to the rubber mixing machine to mix the HTV silicone rubber curing agent and HTV silicone rubber, after mixing for 15 mins, HTV silicone rubber production worker take the HTV silicone rubber from rubber mixing machine to the HTV silicone rubber cutting machine to cut pieces to pieces. Then pick up one pieces of HTV silicone rubber to molding machine to cure it.
After then, A company’s representatives bring Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager back to meeting room, Tian Bao Li sale manger, professional HTV silicone rubber technicians and professional HTV silicone rubber production manager and A company’s representatives both sides waiting for the O-ring test.
In afternoon, A company’s Quality Department comedown and say the test pass.
2. HTV silicone rubber for auto silicone parts
Since 2019, an American company has entered the long-term cooperation with our company to officially import silicone rubber compounds now.
Before the silicone rubber purchased by American company was not only expensive from other supplies, but also had a long order cycle of 30-40 days, which would affect their production plan from time to time. Later, Foshan TBL company was contacted. Then they sent the free samples for trial, of course, the silicone was strictly controlled by our engineering department and quality department. After sample test, it fully met the requirements for them, and the price was lower, Most importantly, the delivery cycle has also been shortened by many days.
Now the company places an order for 20 tons of fumed HTV silicone rubber every month. With many years of cooperation, the quality of TBL silicone rubber is also stable, reliable and trustworthy!
Based on the stable upstream supply chain, TBL can meet the needs of consumers and achieve stable development of market cooperation and mutual benefit.
We have confidence of TBL silicone rubber than others, because we have the advantage of the first silicone rubber fully automatic production line in China. Which make the silicone rubber with stable high quality and stable production output! Our customers can use less materials than others, such as for 400 gram silicone rubber, we can save at least 10 grams compared to others. That means customers can save more materials and improve production efficiency, so as to make products better.
3. HTV silicone rubber for seals parts
In June 2019, Pakistan company had a product about silicone rubber seals and was looking for powerful partners. Through the network, we learned that Foshan Tian Bao Li silicon Engineering Technology Co., Ltd. is a manufacturer focusing on silicone rubber for 10 years. Like most enterprises, customers are also skeptical about our strength at this time, With the idea of trying, the customer sent us the product related data for evaluation. After checking, we have previous experience and we are more confident.
Nevertheless, the customer is still not very confident. We specially invited the customer to our company for a field visit. The customer came to our company for a field visit. We showed the guests the samples of making rubber seals, as well as the production workshop and testing equipment. Seeing these real things, the customer finally affirmed our strength.
After many times of communication and negotiation, both parties agreed that we should make samples first, and then discuss the next cooperation after the sample situation is passed. Although we have experience in making similar products, we are still very cautious, because compared with before, the dimensional accuracy is higher, the materials should also meet the requirements of FDA, and higher requirements are put forward for our molds and molding processes, Greatly improve the production efficiency of customers. To this end, we strictly control the precision of the mold and strive for perfection in every link. The final sample mold test successfully meets the high-precision requirements of customers.
After solving the problem of product dimensional accuracy, we entrusted a third-party laboratory to conduct FDA certification on the product material, which made us a step closer to success. Then we started the final product test. The product needs to be baked in two stages for many hours, there is no product quality problem, and the elastic tear strength is good, After countless performance adjustments and joint efforts, these problems have been finally solved. The next step is the long product life test. Therefore, we specially purchased test equipment and repeated experimental tests. Finally, the performance of the product meets the customer's requirements.
After the sample confirmation, we opened a separate production line to supply goods for customers. On this basis, we expanded our cooperation and made some kitchenware products and miscellaneous parts, which were highly recognized by customers.
4. HTV silicone rubber for extrusion products
TBL silicone rubber achieves the goals of saving energy, increasing production output, safe production and meeting the national environmental protection standards.The molding compression HTV silicone rubber is molded by vacuum machine, while extruded silica gel is extruded by extruder; it is to add double 2,5 curing agent or odorless vulcanizing agent, which is applicable to silicone products,such as keyboards, seals, silicone rings, gaskets and other industrial parts.
The HTV silicone rubber for extrusion is to add double 2,4 curing agent or platinum curing agent. It is suitable for all kinds of wires, cables, hoses and silicone strips, etc.
In fact, we should also slow down the vacuum pumping rate, otherwise bubbles can not be avoided. The fault tolerance rate of platinum is very low and can not be fully guaranteed.The shelf life of silicone rubber is 1 year, and the best trial period is recommended to be within 6 months. If there is any problem in the production process, we will find a way to help solve it. Now we are successfully solve these question for clients, meet their environmental protection standards.
TBL always adheres to the enterprise value of “superior quality and good faith to the world”, practices the enterprise spirit of "integrity, unity, innovation and transcendence". Based on high specialization, we continue to develop new technologies, processes innovation and products innovation to establish a long-term cooperation with clients.
In addition, Foshan TBL silicone also excellent R & D and design capabilities. TBL silicone can design formula according to customer requirements.Through comprehensive product services, the company provides customers with professional products and auto silicone parts, and has become the first choice for ODM / OEM cooperation suppliers of international large manufacturers.
Now we have Taiwan, Turkey and other customers doing OEM silicone rubber. Whether from raw materials or packaging cartons, TBL silicone provide customers better quality and reliable silicone rubber products.
By adopting high quality raw materials and executing strict process control, TBL silicone rubber are delivered various industries in domestic market in China, as well as exporting to many countries including the United States, Spain, Turkey, India, Pakistan, South Korea, Russia, Thailand, Vietnam, etc.
Part 1. Company Introduction :
Foshan Tian Bao Li Silicone Engineering Technology Co., Ltd is a wholly-owned subsidiary of Foshan Golden Milky Way Intelligent Equipment Co., Ltd. It is a high-tech enterprise specializing in the R&D, production and operation of silicone products . TBL silicone is the brand of Foshan Tian Bao Li Silicon Engineering Co., LTD .
The company is located in Sanshui district, Foshan city, Guangdong province, which is the famous "hometown of prosperity and longevity"covers the area of 26700 square meters and the building area of 30,000 square meters. Now, our company equip with the best quality silicone rubber automatic production lines and various advanced silicone rubber production equipment , none but Tian Bao Li own the full auto-lines for the manufacture of silicone rubber in China.Its annual production capacity is about 30000 tons. Our company has obtained ISO9001 international quality management system certification. Our company has many technical experts, marketing and management specialists and has served thousands of customers.
The company has two business divisions, silicone rubber and industrial rubber. Products include high temperature vulcanized silicone rubber, liquid silicone rubber, room temperature vulcanized silicone rubber, widely used in electronics, household appliances, medical supplies, infant child products, LED lighting, new energy vehicles and other industries.
Silicone rubber is one of the most important parts of silicones. Because of its excellent characters such as high and low temperature resistance, electrical properties, weathering and age resistance, physiological inertness, it is widely used in electronics and electricity, automotive, astronautics, mechanic, healthcare and consumer goods.
The company pays high attention to good quality, environmental protection and economical efficiency of the products ,The main products have passed America FDA, Germany LFGB, EU Certificate of food grade, UL safety test certificate, ROHS Directive standard certificate and REACH certificate. In 2015, our four main products won the certificate of Guangdong high-tech products.
We uphold the enterprise value of “exceptional moral character and excellent product quality”, Fulfill the enterprise spirit of “integrity, unity, innovation and transcendence”, always adhering to the management philosophy of “respect for heaven , respect humanilty , rspect for our predecessors, filial piety. On the basis of high specialization , continuous introduction of new technologies, new proceses and new products, continuous update of profesional, practicability and economy of the products , do our best to create more values for customers, we struggle for our enterprise mission provide the best quality silicone rubber and body safe silicone rubber to human .
Part 2. Products introduction :
TBL Company Products have silicone rubber raw materials and industrial rubber raw materials , Room Temperature vulcanization ( RTV ) silicone rubber raw materials and Room Temperature vulcanization silicone rubber raw materials ( RTV 2 )As a professional silicone rubber manufacturer with rich varieties, best service and immediate response, TBL silicones has hundreds of products.
1. High Temperature vulcanization solid silicone rubber raw materials include molding and extrusion ,precipitated and fumed ; has the characteristics of high strength, high hardness (20-80 Hardness) , with good heat resistance ,high transparency,good workability , Easy stripping, tear strength , with good springback ,etc characteristic .Prodcuts are generally applicable to a variety of sets of subcategories as well as electronic , food ,automobiles,cots,household appliances ,all kinds of silicone keys , ordingary O-Ring,water proof gasket ,sundries,tableware and baby’s products,Pass the certification of ROHS, FDA,REACH,LFGB,EU Certificate of food grade,UL safety test certificate ,Company Model: solid precipitated silicone rubber raw materials For molding :TBL-500 ( 30-80 Hardness);TBL-500A ( 30-80 Hardness);TBL-501 ( 30-80 Hardness); solid fumed silicone rubber raw materials for Extrusion :TBL-900-20 ( 20-80 Hardness ).
2. Industrial rubber raw materials Mainly used for: bonding, sealing, potting.Product Feature:fast solidify, no corrosion,fast surface dry, strong adhesive, high strength rubber, high temperature and humidity resistance, good effect of hot and cold shock Semitransparent.fast curing,fast poitioning,no pulverization, good adhesion and good aging resistance.Mainly used in : LED Industry , New-energy Vehicle Industry , Electric Appliance Industry , E-communication industry,photovoltaic industy, electric power engineering industry rail transit industry . Company Model : TBL-6237 , TBL-6239, TBL-6233,TBL-6615,TBL-6619,TBL-6131,TBL-6231,TBL-6616,TBL-6136 .
3. Room Temperature vulcanization ( RTV 2 ) silicone rubber raw materials Mainly used for various human limbs, including hands, feet, human masks and adult products,prepare cultural stone, chocolate, candy and other handicraft molds. Product Features: Extremely low viscosity fit for making mold easier to discharge foam,Excellent tensile and tear strength,Low linear shrinkage,100% curing, without curing by-products,Excellent temperature resistance, operation temperature -50℃ to +200℃,Food grade , FDA,Easy demoulding.Company Model :TBL-8110,TBL-8120,TBL-8130,TBL-8140,TBL-8150,TBL-8160 .
Part 3. High temperature vulcanization solid silicone rubber introduction :
1. Silicone rubber is made of methyl vinyl silicone rubber, silica and small amount of materials such as silicone oil, which are repeatedly refined in an airtight kneading machine.
2. Methyl Vinyl Silicone Rubber Product Description: It is insoluble in water, while soluble in toluene, etc.. With the good performance of low compression deformation, good resistance to saturated vapor pressure, it is widely used in aviation, electronics, machinery, chemical and other industrial sectors. It can be used to manufacture high and low temperature resistant sealing materials and waterproof, moisture-proof insulation materials. It can be used to manufacture artificial organ and medical rubber pipe in medical fileds, as well as raw material for high temperature silicone rubber.Methyl vinyl silicone rubber is a high-molecular-weight polysiloxane compound synthesized with high-quality siloxane and vinyl. This series of glues can be divided into two categories: methyl end-capped and vinyl end-capped based on different molecular end groups.
The type with "S" in the model is vinyl-terminated methyl vinyl silicone rubber, and the other type is methyl-terminated methyl vinyl silicone rubber. series of raw silicone rubber can be cross-linked into elastomers at high temperatures after adding reinforcing agents (silica) and additives. It can be used to make molded rubbers, extrusion rubbers, electrical insulating rubbers, flame-retardant rubbers, etc. The mixed rubber products are cross-linked to form elastomers at high temperatures to further make various types of silicone rubber products.
This product is a kind of linear polydimethylsiloxane with high molar mass. It is suitable for the production of base rubber and colloidal vulcanizing agent of silicone masterbatch. It can also be used together with methyl vinyl silicone rubber. It is formulated into high tear strength silicone rubber, low hardness silicone rubber and sponge silicone rubber.
3. precipitation Heat cure Rubber silicone rubber ( Silicone Rubber) , It is mainly produced by Na2SiO3 solution precipitated by SiO2 to produce coarse particles, which will turn white when stretched, and the appearance is translucent. The silica particle size of precipitated adhesive is large, generally sub-micron, with small specific surface area, high water content and electrolyte content, and its reinforcing performance is lower than that of gaseous silica, especially its tear resistance.Advantage is added to the silicon rubber thickening is small, and because its single particle does not deform, so it is suitable for the preparation of low compression permanent deformation and high resilience products.The cost of raw materials is relatively cheap and the price is cheap.
The market calls this: precipitated silicone rubber .Show the models of our factory:TBL-500A, TBL-500, TBL-501，Every Model has 30,40,50,60,70,80 Hardness .Each model is suitable for different products, and you must choose the appropriate model according to your end product. Our products have Certificates: ISO, REACH, ROHS, LFGB, UL&FDA certificated.
4. Fumed Heat cure Rubber silicone rubber (HCR Rubber) ,mainly produced by the mixed combustion of SiCl4 and H2 and O2 to produce fine particles, which will not turn white when stretched, and can be stretched longer without breaking. The appearance is transparent, the cost of raw materials is high, and the price is high , generally used for products with high requirements, so the cost is higher,The market calls this: fumed silicone rubber. It is a white, non - toxic, tasteless, non - polluting non - metallic oxide. Due to its characteristics of small particle size, large specific surface area and high surface activity, this product can help optimize the efficiency, stability and operation of the product system and formula in every link of production and processing.
It has the effect of optimization process and products in the storage battery, composite materials (synthetic resin), printing ink, developer, pigment, tick off seam mortar, adhesives, food, feed, insulation gel, paint, natural and synthetic rubber, PVC, bulk materials, silicone elastomer, toner, as well as paper coating, fabric impregnated and pharmaceutical applications.
Performance Application: Colloidal battery, synthetic resin, printing ink, developing agent, pigment, jointing mortar, feed, insulating gel, adhesive, food, coating, natural and synthetic rubber, polyvinyl chloride, bulk material, silicone elastomer (HTV, RTV), toner, beauty jointing agent, etc ; Chemical Definition:Nano-silica with very high reinforcing performance was prepared by chemical fumed deposition method. Tt can be used as an excellent reinforcing filler in the silicone industry due to its large surface area, strong adsorption ability, good dispersibility, non-toxic and odorless, and high temperature resistance.Show the models of our factory:TBL-900 and has 20,30,40,50,60,70Hardness .
5. The white carbon black used by the two is not the same, the white carbon black particle size of the gas phase adhesive is small, the specific surface area is played, the surface adsorption force is strong, the dispersion is good, has superior stability, reinforcement, thickening, and purity, generally used for products with high requirements, so the cost is higher. The silica particle size of precipitated adhesive is large, generally sub-micron, with small specific surface area, high water content and electrolyte content, and its reinforcing performance is lower than that of gaseous silica, especially its tear resistance.Advantage is added to the silicon rubber thickening is small, and because its single particle does not deform, so it is suitable for the preparation of low compression permanent deformation and high resilience products.
6. There are two different forming ways of HTV Silicone rubber:
A. Molding:Definition: Molding molding, also known as pressing molding, is the mixture of good rubber material in the mold cavity, with the help of pressure and heat, so that the material is filled with the mold cavity, the formation of the same products with the mold cavity, and then after heating to solidify the demoulding, its molding products is molded products.It is suitable for Food Grade HCR Silicone Rubber .also known as pressing molding, is the mixture of good rubber material in the mold cavity, with the help of pressure and heat, so that the material is filled with the mold cavity, the formation of the same products with the mold cavity, and then after heating to solidify the demoulding, its molding products is molded products.
B. Extrusion molding: Definition: extrusion forming in rubber processing is the process of making various continuous products by a single screw extrusion mechanism.Such as pipes, sealing strips, wire and cable cladding.It is suitable for Food Grade HCR Silicone Rubber.
7. When using High temperature vulcanizationsolid silicone rubber , Curing Agent must be added. Different processes have different Curing Agent:
A: Molding : can only be used for molded Curing Agent: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, abbreviation: DMDBH or double-2,5 ,It must be added .
B: Extrusion molding: can only be used for Extrusion Curing Agent: 2,4-dichlorobenzoyl) peroxide, abbreviated as: DCBP Or double-2,4 ,It must be added .
Part 4. High temperature vulcanization solid silicone rubber Raw materials introduction :
1. Methyl Hydrogen Silicone Fluid, Product Description:Under the action of metal salt catalyst, it can be cross-linked into a film under a low temperature, forming a waterproof film on the surface of various substances, can be used as a fabric, glass, ceramics, paper, leather, metal, cement, marble and other materials waterproof, especially the waterproof fabric. In addition, it can also be used as an anti - adhesive and crosslinking agent of papers. Used for high temperature vulcanized silicone anti-yellowing agent, addition silicone rubber cross-linking agent, also can be used to dilute silicone rubber ink.
2. Performance Application:
A. Used as as anti-yellowing agent, coupling agent in making high-temperature silicone rubber compound(HTV);
B. Used as crosslinking agent for addition silicone rubber;
C. Used as waterproof clothing, waterproof gypsum board do waterproof agent (hydrophobic agent, water agent), in the role of metal salts catalyst, low temperature can be cross-linked into a film, forming a waterproof film on the surface;
D. Used as insulation in the MgO (electrical grade MgO) surface treatment;
E. Used as a softener, hydrophobic agent, feel improver, sewing line lubrication, chemical fiber spinneret lubrication and clothing pressure lining agent in textile, clothing industry.
Chemical Definition
3. Methyl polysiloxane with different kinematic viscosity is replaced by hydrogen atom on one side of silicon atom.
Application Industry
A. Silicone rubber industry: anti-yellowing agent, coupling agent and bridging agent;
B. Waterproof industry: water-proofing agent and water-repellent agent;
C. Textile industry: softener, hydrophobic agent, hand oil.
4. Methyltrichlorosilane:
Product Description: This product is colorless transparent liquid, toxic, flammable with a boiling point at 66 ℃. It is the basic materials of silicone products, mainly used to produce methyltriethoxysilane and silane crosslinking agent such as methyl triethoxysilane and methyltrimethoxysilane, as well as to produce silicon resin, special coatings, building waterproofing agent and oilfield drilling collapse resistance agent (methyl sodium silicate).
Performance Application: It is mainly used for the production of methyl triethoxysilane, methyl trimethoxysilane and other crosslinking agents, silicone resin, special coatings, construction waterproofing agent and oilfield drilling anti-collapse agent (sodium methylsilicate), as well as gas phase silica and other products.
Chemical Definition: Methyltrichlorosilane
Application Industry
A. Silicone field: one of the main raw materials of silica in the gas phase process
B. Daily chemical field: one of the main raw materials of silicone waterproof agent
C. Resin: methyl silicone resin
5. Silicon Metal :
Product Description:The properties of silicon metal are similar to germanium, lead and tin. Silicon, only second to oxygen, existed in the form of silicon dioxide or silicate, is extremely rich in the earth's crust and accounting for more than a quarter of the total weight of the earth's crust. It is mainly used for silicone production, non-ferrous alloy additives and making high purity semiconductor materials.Performance Application:It can be used as the raw materials of silicone, polysilicon and aluminum alloy industries.Application Industry:
A. Silicone field: silicone oil, silicone rubber, silane coupling agent, etc.
B. Polysilicon field: solar photovoltaic and semiconductor materials
C. Aluminum alloy field: automobile engine, wheel hub, etc.
6. Dimethylcyclosiloxane：Product Description:Chemical Definition:Dimethylsiloxane (dmsiloxane) mixed circles with octyl cyclotetrasiloxane as the main component. It is colorless, inflammable, and cannot dissolve in water, but dissolve in organic solvents such as benzene, etc. Viscosity is about 2.1 ~ 2.5 was/s, freezing temperature 0 ℃ ~ 5 ℃. It can be used to synthesize silicone polymer by acid or alkali catalysis to manufacture silicone oil, silicone rubber, etc.
Performance Application:
A. Used for the manufacture of high tear resistant silicone rubber products, also for the synthesis of other polymer compounds.
B. Used as the preparation of silicone oil intermediates, but also used for radio parts insulation, moisture-proof, etc.
Application Industry
A.Silicone: raw materials for raw rubber, OH polymer, silicone oil and other silicone products;
B.Textile industry: used as textile auxiliaries.
7. Hexamethylcyclotrisiloxane
Product Description: It is a volatile polydimethylcyclosiloxane, mainly composed of hexamethylcyclotrisiloxane, room temperature is white crystal.
Chemical Definition: Hexamethylcyclotrisiloxane.
Application Industry: Pharmaceutical Industry.Performance Application:
A. In addition to the synthesis of general silicone polymers, it can also be used to make specific silicone compounds as a variety of surface treatment agent, coupling agent, crosslinking agent;
B. Used for manufacturing methyl vinyl silicone rubber products, is also an important raw material for the synthesis of other polymer compounds;
8. Octamethylcyclotetrasiloxane:
Product Description: It's a volatile polydimethylcyclosiloxane, mainly composed of octamethylcyclotetrasiloxane.Under the catalysis of acid and base, it is polymerized into silicone polymer, which is the basic raw material of silicone oil and silicone rubber.
Chemical Definition: Octamethylcyclotetrasiloxane.
Performance Application:
It is the basic raw material of silicone products, such as silicone oil, emulsion, silicone rubber, silicone resin, etc.Also it can be directly used as rubber packing agent and cosmetic raw materials.
Application Industry:
A. Information transmission industry: fiber prefabricated rod
B. Textile industry: textile auxiliaries, soft silicone oil
9. Decamethylcyclopentasiloxane:
Product Description : It is a volatile polydimethylcyclosiloxane, mainly composed of decamethylcyclopentasiloxane. It is colorless and transparent liquid, with low flow point and fast reaction speed. It has good compatibility with most alcohols and other cosmetic solvents and is widely used in cosmetics and human body care products, such as skin care, sunscreen, makeup, hair conditioning products. It can be directly used as a carrier, the main raw materials, can also be used as additives; It can also be used in water -based.
Chemical Definition: Decamethylcyclopentasiloxane.systems by emulsification.
Performance Application : Functional silicone oil, cosmetics raw materials, clothes dry cleaning agent, the product has excellent volatile, widely used in the field of daily chemical.Application Industry
A. Daily chemicals: skin care lotion, antiperspirant, shampoo
B. Silicone oil
10. Silicon Metal:
Product Description:The properties of silicon metal are similar to germanium, lead and tin. Silicon, only second to oxygen, existed in the form of silicon dioxide or silicate, is extremely rich in the earth's crust and accounting for more than a quarter of the total weight of the earth's crust. It is mainly used for silicone production, non-ferrous alloy additives and making high purity semiconductor materials.
Performance Application:It can be used as the raw materials of silicone, polysilicon and aluminum alloy industries.
Application Industry:
A. Silicone field: silicone oil, silicone rubber, silane coupling agent, etc.
B. Polysilicon field: solar photovoltaic and semiconductor materials
C. Aluminum alloy field: automobile engine, wheel hub, etc.
11. Acetic Silicone Sealant:
Product Description: It is single-component, acetic silicone sealant.
Performance Application: It is used as good sealing material for glass, doors and windows due to its excellent flexibility, water proofing resistance to temperature and weather ability. It is used for installation and sealing of normal glass, windows and display stand and sealing, adhesion and repair of other construction materials including aluminum material, marble, plastic and wooden.
12. Room Temperature Vulcanized Silicone Rubber:
Product Description: Building silicone rubber, electronic glue, mold glue, photovoltaic glue, automotive and industrial glue, pressure sensitive adhesive, leather slip agent and release agent, special specifications can be used in fabric finishing and daily chemical industry.
Performance Application:Construction silicone sealant, electronic sealant, mold sealant, photovoltaic sealant, automotive and industrial sealant, pressure sensitive sealant, leather lubricant and isolation agent, special specifications can be used for fabric finishing and daily chemical industry.
Chemical Definition:The molecular structure is a kind of polysiloxane with a straight chain and high molecular weight.It is colorless transparent liquid. It is cured at room temperature with crosslinking agent and catalyst, and it can keep elasticity in 60 ~ 200 ℃ temperature for a long time.
Application Industry: Mould: imitation bronze ware mould and artificial leather mould.
13. Graphitized Carbon Electrode
Product Description: The graphitized carbon electrode of our company use petroleum coke and coal pitch as a binder agent made through calcining. burdening, kneading,pressing, roasting, graphitization and machining. It is a conductor which releases the electric energy to heat and melt materials in the form of electricarc in an electric arc furnace. The electrode we produce is a graphitized carbonelectrode, and is suitable for the mine furnace smelting production of silicon metal, iron alloy, etc.
Performance Application: The graphitized carbon electrode of our company use petroleum coke andcoal pitch as a binder agent made through calcining. burdening, kneading,pressing, roasting, graphitization and machining. It is a conductor which releases the electric energy to heat and melt materials in the form of electricarc in an electric arc furnace. The electrode we produce is a graphitized carbonelectrode, and is suitable for the mine furnace smelting production of silicon metal, iron alloy, etc.
Application Industry: The electrode is an ultra-high temperature conductive material which is mainly used in submerged arc furnaces to produce silicon metal, iron alloy, yellow phosphorus, calcium carbide and so on. Since the 1980s, with the increasing scale of China's infrastructure construction,industries which use submerged arc furnaces to smelt yellow phosphorus, calciumcarbide, ferroalloys, industrial silicon have developed very fast. Especially after the 1990s, the development has become more rapidly.
As the final heating treatment temperature of the conventional carbon electrode is about 1100 ° C,while the temperature of using submerged arc furnaces to smelt silicon, yellow phosphorus, calcium carbide, iron alloy and fused magnesium is 1800-2200 °C, when reaching the temperature range of 1600-2000 °C, the nitrogen, sulfur and othermetal impurities contained in the conventional carbon electrode escape in agaseous form, a serious "crystal rise" phenomenon will occur which will cause cracks inside the electrode. In severe cases, the block of the electrode may drop or break off during use which will affect the smelting production in the submerged arc furnace. However, this kind of phenomena can be avoided by the graphitized carbon electrode and it can effectively prevent cracks or falling off in the use process.
14. Introduction of two types molding silicone rubber：
For silicone rubber manufacturer, usually there is two types molding silicone rubber using. Each type comes with its own set of specific advantages. Let’s look at the two most common types of silicone molding: compression molding, and liquid injection molding. Compression molding is a commonly used type of molding silicone rubber products, which typically utilizes high consistency silicone rubber of HCR silicone rubber or named of HTV silicone rubber, Solid silicone rubber. Compression molding is generally a more simplified method of molding silicone rubber products, with the advantages of lower cost, good workability, easy stripping, tear strength and other characteristics.
TBL silicone have the first automatic production line all over China for HCR silicone rubber, which will make sure of good and stable quality of products. HCR/HTV/Solid silicone rubber are generally applicable to variety kind of areas: food, automobiles, household appliances, silicone keys, ordinary O-ring, water proof gasket, tableware and baby’s products etc.For compression molding advice use TBL Silicone series of silicone rubber TBL-500, TBL-501, TBL-500A, TBL-900, which pass the certifications of FDA, LFGB, ROHS, REACH.
15. Silicon Metal Powder
Product Description: This product is grinded from silicon metal blocks and are gray-colored and have metallic luster. It is widely used in refractory materials, basic raw materials of silicone, integrated circuit components, powder metallurgy, construction engineering, water conservancy engineering and other fields.
Performance Application
A. Silicon metal powder is widely used in refractory and powder metallurgy industries to improve the product's high temperature resistance, wear resistance and oxidation resistance.Its products are widely used in steelmaking furnace, kiln, kiln furniture;
B. In the silicone industry, silicon metal powder is the basic raw material for the synthesis of silicone macromolecule. For example, it is used to produce silicone monomer, silicone oil and silicone rubber preservative, so as to improve the high temperature resistance, electrical insulation, corrosion resistance, waterproof and other characteristics of the product;
C. Silicon metal powder is pulled into monocrystalline silicon, and the processed silicon wafer.
Application Industry
A. Refractory field: firebrick, etc;
B . Polysilicon field: solar photovoltaic and semiconductor materials;
C. Silicone field: silicone oil, silicone rubber, silane coupling agent, etc;
D. Polysilicon field: solar photovoltaic materials and semiconductor materials;
E. Silica sol field: silicone resin, etc;
16. Fine Silicon Metal Powder
Product Description: It is gray fine industrial silicon metal powder with metallic luster, which is collected from the dust produced in the silicon metal production. It is widely used in refractory materials, powder metallurgy, production of silica sol, silicone resin, etc.
Performance Application
A. Silicon metal powder is widely used in refractory and powder metallurgy industries to improve the product's high temperature resistance, wear resistance and oxidation resistance.Its products are widely used in steelmaking furnace, kiln, kiln furniture.
B. It can be used to produce silica sol, ethyl silicate, etc.
Application Industry
A. Refractory field: firebrick, silicon carbide, etc.
B. Silica sol field: silicone resin, etc.
17. Silicon Metal:
Product Description: The properties of silicon metal are similar to germanium, lead and tin. Silicon, only second to oxygen, existed in the form of silicon dioxide or silicate, is extremely rich in the earth's crust and accounting for more than a quarter of the total weight of the earth's crust. It is mainly used for silicone production, non-ferrous alloy additives and making high purity semiconductor materials.
Performance Application:It can be used as the raw materials of silicone, polysilicon and aluminum alloy industries.
Application Industry
A. Silicone field: silicone oil, silicone rubber, silane coupling agent, etc.
B. Polysilicon field: solar photovoltaic and semiconductor materials
C. Aluminum alloy field: automobile engine, wheel hub, etc.
18. Trimethylchlorosilane
Product Description:The product is colorless transparent liquid, volatile, flammable, mainly used for the production of headsealing agent MM, silazane, cephalosporin antibiotics, active gene protectant.
Chemical Definition:
Performance Application: Trimethylchlorosilane is mainly used as an intermediate in the production of silicone polymers and other products, as well as raw materials for the production of macromolecular compound head sealant, desiccant, dehydrating agent, high temperature adhesive and resin. It can be used for the synthesis of cephalosporin Ⅰand cephalosporin V in pharmaceutical industry.
Application Industry: Silicone industry: silazane, siloxane, heptamethyltrisiloxane, pharmaceutical group protectant, methyl silicone oil sealing agent.
19. Methyldichlorosilane:
Product Description:The product is colorless transparent liquid. It is flammable, toxic, explosive and is mainly used for the production of methyl hydrogen fluid, methyl vinyl monomer and amino silane.
Chemical Definition: Methyldichlorosilane
Performance Application
It is used for production of methyl hydrogen silicone fluid, fabric processing, and waterproof agent.
Application Industry
1. Silicone industry: one of the main raw materials of methyl hydrogen silicone fluid.
2. Coupling agent and head sealing agent.
Part 5. All products of the company have passed the following certifications:
- Environmental Substances-RoHS
- Environmental Substances--REACH
- Environmental Substances-FDA
- Environmental Substances--LFGB
- Environmental Substances--PAHs
- Environmental Substances-Halogen
- Environmental Substances-Phthalates
- Environmental Substances--PFOS-PFOA
- Medical testing-biocompatibility testing
- Flame-retardant certification--UL
- Low volatile matter-VOC detection
Why the silicone rubber is more and more popular in the daily life ,you may see the the production of sealing ring, sealing strip, electronic keys and other products;Its good environmental performance makes it widely used in silicone bracelet, cake mold, baby nipples, diving mirror, spatula, pressure cooker handle and other daily supplies.
HTV silicone rubber is one of the most important parts of silicone. it is widely used in electronics and electricity, automotive, aeronautics, astronautics, mechanic, healthcare and consumer goods.Because of its excellent characters such as high and low temperature resistance, electrical properties,weathering and age resistance, physiological inertness.
Below is some advantages of silicone rubber
- Thermal stability
- High Flexibility
- Resistance to natural ageing
- Good electrical properties
- Comprehensive mechanical properties
- Good fire-resistance silicone rubber
- Skin / food contact
I would like to introduce our company, Foshan Tian Bao Li Silicon Engineering Technology Co., Ltd.
----We are one -stop silicone rubber customized solutions ,comprehensive analysis of product structure, provide a reasonable material performance program,and tailor the silicone rubber according to needs to achieve the best process performance. At the same time, each batch of incoming, semi-finished and finished products will be tested and analyzed to ensure the reliable product quality.
---Top ranking testing center to test the silicone rubber, equipped with most advanced precision testing equipment, and brings together a large number of experienced research elites.
Our professional experience and knowledge have enabled us to:
- Synthesize various silicone rubber auxiliaries and additives with different function.
- Synthesize silicone-modified resin and silicone resin intermediates with functional groups.
- Proceed experiments in composing various optical-grade, medical-grade silicone rubber materials.
- Improve the formula and performance silicone rubber for HCR, LSR, PSA, etc.
- Develop new applications for thermal conductivity, bonding, potting, and so on.
- Proceed experiments for household silicone rubber applications.
--The Production Process of Silicone Rubber Material and The Critical Points of Quality Control at Each Stage
1. Polymerization of gum
Test items: silicone molecular weight, vinyl content, residue ratio
Critical points: polymerization temperature, polymerization time of silicone rubber , polymerization and agitation interface, and amount of additives
2. Silica reinforcement
Test items: silicone rubber hardness, transparency, green quality
Critical points: the type and quantity of silica, stirring uniformity
3. Vacuum refining
Test item: uniformity
Critical points: vacuum condition and mixing time
4. Sample testing
Test items: physical properties include curing speed, transparency,
Critical points: stable formulation, constant vulcanization
5. Mixing of silicone rubber material
Test items: stable formulation, stirring
Critical points: measurement of ingredients, stirring speed and
time.
6. Filtering and packing
Test items: cleanliness, weight of single package
Critical points: the number of mesh and layer of the stainless steel
Where to find us ?
Foshan Tian Bao Li Silicon Engineering Technology Co., Ltd is a wholly owned subsidiary of FOSHAN GOLDEN MILKY WAY INTELLIGENT EQUIPMENT CO., LTD. GMK was listed on the Growth Enterprise Market on March 1, 2017 (stock code : 300619).it was found in 2011, is a national high-tech enterprise which devote itself to the research, development, production and management of organic silicon materials.
---Big international and main land market
China: Guangdong, Anhui, Beijing, Fujian, Hebei, Henan, Hubei, Hunan, Jilin, Jiangsu, Jiangxi, Mongolia, Shandong, Shanxi, Shanghai, Sichuan, Tianjin, Xi'an, Zhejiang, Chongqing
Asia: Bangladesh, India, Iran, Japan, Korea, Malaysia, Pakistan, Philippines, Thailand, Taiwan (China), Turkey
Europe: Germany, Italy, Romania, Russia, Portugal, Britain, France, Poland, Austria, Spain, Czech Republic
America: Argentina, Brazil, Colombia, Ecuador, Mexico, Canada
Africa: Morocco, South Africa
When you use silicone rubber , may be you did not know what is the silicone rubber, how to use them ,you may find there are many questions, below check some important issue for you.
Chemical symbol "Si" (Atomic Number 14), silicone rubber is turned into silicon metal by heating silica (quartz) to very high temperatures in an electric furnace. Facilities in China, Russia, Brazil, Norway, South Africa and USA, can produce very pure (98%) silicon metal using this technique.
Silicone rubber is identified as a synthetic elastomer as it is a polymer which display – that is to say it shows both viscosity and elasticity. Colloquially people call these elastic characteristics rubber.
Silicone rubber itself is made up of carbon, hydrogen, oxygen and silicon. Note that the ingredient contained within silicone is spelt differently. The ingredient silicon comes from silica which is derived from sand. The process to make silicon is complex and involves many stages. This arduous process contributes to silicone rubber’s premium price compared to natural rubber.
The silicone rubber making process involves extracting silicon from silica and passing it through hydrocarbons. It’s then mixed with the other chemicals to create silicone.
The production process and material composition of silicone rubber material gives it a great amount of flexibility, which is what makes it so popular for so many uses. It’s able to withstand extreme fluctuations in temperature from as low as -60°C to as high as 300°C.
HTV means that the silicone in question is cured with the application of heat. These materials tend to be supplied in a thick putty type form and thus are processed used molds and extrusion.
The silicone rubber has excellent environmental resistance from Ozone, UV and general weathering stresses making it ideal for outdoor sealing and protection to electrical components such as lighting and enclosures. Silicone sponge is a lightweight and versatile material making it ideal for reducing vibrations, and decreasing noise within mass transit applications – making it popular for use in environments such as trains and aircraft where customer comfort is helped by the use of silicone rubber.
This is just a brief overview of the origins of silicone rubber. However, at Silicone rubber Engineering we understand how important it is that you understand everything about the product you are buying. If you would like to find out more to understand how silicone rubber can work in your industry then get in touch with us today.
Unlike most other rubbers, silicone rubber can withstand temperature extremes, from above 200°C and as low as minus 60°C. When it comes to melting points, silicone doesn’t melt due to temperature alone, regardless of how hot it gets.
If, How about the melting point of silicone,for example, silicone rubber is heated to 150°C, even for an extended period of time, it should not change. When it is heated to 200°C, it will become harder and less stretchy over time, while if it’s heated above 300°C, it will quickly become harder and less stretchy. However, even when exposed to these high temperatures, it will not melt.
It’s important to note, however, that the auto-ignition temperature of silicone rubber is around 450°C, so heating it above this temperature is not recommended.
Silicone rubber is used in a range of applications due to its flexibility and durability. Silicone lends itself perfectly to laser cutting, allowing the production of smooth, clean edges, deep engraving, and high detail.
How do you tell the difference between rubber and silicone rubber? Silicone rubber are both elastomer, however, although they share some characteristics, they do have several differing properties.
Broadly speaking, the service temperature range of silicone is within the region of -110C to +315C Silicone rubber is not normally considered as volatile. However, it can lose a fraction of its weight as the temperature rises, By the addition of carefully selected chemicals, silicone rubber can become a good conductor of heat.
Products made silicone rubber are very difficult to paint. Special surface treatments can help but in general silicone resist paint application.
Silicone rubber has been used for long-term medical implantation. An example is finger joints. The recent bad publicity about breast implants has meant that the major silicone manufacturers do not recommend their products be used for more than 28 days. Silicone rubber is among a number of rubber types that can be used in contact with food. It has the advantage of being a low taint non-toxic material Some silicone rubber are described as addition cured because the cure mechanism is a catalyst reaction between the component ingredients within the silicone rubber compound.
These components need to be added together for the compound to cure hence the term addition. Addition cure compounds can be supplied as one, two or three component systems. The time taken to cure a silicone rubber depends on a number of factors. These include temperature, section and cure mechanism. In practice a typical cure time for a compression molded part is in the region of 5 minutes at 180C.
The cure time for silicone rubber can be accelerated to a certain extent by a combination of the following - higher temperatures, mold design, processing method, and changing from a peroxide cured compound to a addition cured compound. There is a possibility that certain compounds (usually those used for extrusion purposes) can evolve very low quantities of PCB''s. These are derived from the peroxide used to cross-link the silicone. It is therefore wise to ensure that adequate ventilation and extraction is provided in the areas where such compound is being processed.
Silicone rubbers can be bonded to a range of substrates including common metals and plastics with the use of special primers and surface preparation techniques Silicone can be made to change color with temperature by the addition of special pigment. The maximum size of a silicone rubber molding is theoretically limited by the size and capacity of the processing and curing equipment.
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