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Application of silicone rubber

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Silicone rubber has unique comprehensive properties, especially its biocompatibility, which is a key characteristic. It has been successfully used in other situations where rubber is ineffective, solving many technical problems, and meeting various needs of modern industry and daily life. Like other rubbers, silicone rubber can be processed into various products such as profiles, rubber tubes, rubber strips, rubber rollers, and adhesive tapes; Room temperature vulcanized silicone rubber can be used for on-site construction in a large area and is convenient to use.

(1) Automobile industry
The application of silicone rubber in the automotive industry is growing rapidly. Silicone rubber (especially silicone rubber with various characteristics) can resist the erosion of fuel and lubricating oil, improve the performance of various automotive components, and reduce maintenance costs. It can be used for automotive ignition wires, spark plug protective covers, hoses for heating and radiators, muffler linings, battery connectors, and refueling pumps made of fluorosilicone rubber. With the development of vehicle electronic electrification, room temperature vulcanized silicone rubber is widely used as an adhesive sealant for electronic parts, potting materials for electrical assemblies, windshield glass, seals around vehicle bodies, and mirrors.

(2) Electronic and electrical industries
The electronics and electrical industry is a field where silicone rubber is used earliest as an insulating material and has a large demand. Silicone rubber is mainly used for television anode covers, high-voltage protective covers, high-voltage outgoing lines, refrigerator defroster wires, power or signal transmission wires and cables, etc. Insulators made of silicone rubber will be widely used in transmission lines, especially ultra high voltage lines, instead of ceramic products. Conductive silicone rubber is used for electrical contacts and liquid crystal display contacts in electronic computers, telephones, and other instruments. Wires and cables made of flame retardant and radiation resistant silicone rubber are widely used in atomic power stations. Silicone rubber heating sheets and belts are used to control the working temperature of various precision instruments and oil pipelines, and are used as heating blankets for physiotherapy and thermal compress devices in medical treatment. Room temperature vulcanized silicone rubber can be used as a waterproof, moisture-proof, and shockproof potting material.

Silicone rubber has been widely used for pump seals in dishwashers and washing machines due to its heat resistant detergent properties. Silicone rubber is very suitable for use as a gasket on appliances such as coffee pots, electrical fryers, and steam irons. The pads on the ears and head of stereo earphones are replaced with silicone rubber, which can eliminate external noise and is soft and comfortable.

(3) Aerospace industry
Silicone rubber is an indispensable high-performance material in the aerospace industry, which can withstand the supercooling of space and the scorching heat of re-entry into the atmosphere, extend the life of aircraft parts, reduce maintenance costs, and reduce accidents. Mainly used for aircraft body cavity seals, electrical connectors, sealing switches, dust and waterproof covers, gaskets, "O" type sealing rings for jet engines and hydraulic devices, oxygen masks, control membranes, hot air ducts, and radar wireless shock absorbers. Burn resistant silicone rubber is suitable for coating rocket fuel valves, power source cables, and rocket launch well covers to avoid burning by rocket jets. Room temperature vulcanized silicone rubber can be used as an airtight seal for the body, a window frame seal, and a shockproof and moisture-proof potting material.

(4) Construction industry
Silicone rubber has good weather resistance and workability, and is widely used as a bonding sealant in the construction industry, surpassing other types of sealants. In recent years, a low modulus and high elongation two-component sealant has been developed for large components such as concrete precast units and curtain walls with large joint movements. Room temperature vulcanized silicone rubber is also used for sealing the joints of asbestos cement boards, bathroom tile joints, and toilet appliances. As the price of rubber decreases in the future, its application range will be further expanded, such as replacing asphalt and neoprene in the application of highway joints. High temperature vulcanized silicone rubber sponge strips are used as sealing strips for doors and windows of buildings.

(5) Medical field
Silicone rubber has good biocompatibility, low response to the body, stable performance, low hemagglutination, and can withstand high temperature and pressure for multiple steaming. It can also be processed into various shapes of products, such as films, sponges, and air bags. It is currently the most widely used material in medicine.

(6) Other fields
In addition to the various applications mentioned above, the applications of silicone rubber in the fields of textile, printing, machinery, plastics, chemistry, papermaking, food, and cosmetics have also increased significantly. A typical product is a roller made of silicone rubber, which is used for heat setting, embossing, calendering, and fixing of fabrics and plastics in photocopiers. Air conditioning windows made of silicone rubber films have been used to store fruits and vegetables. In addition, silicone rubber has also achieved good results as a sealing material for textile high-temperature equipment and equipment with high concentrations of alkali, sodium hypochlorite, and hydrogen peroxide.

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