Silicone rubber (Silicome Rubber) is a new type of heat-resistant polymer elastic material. The biggest characteristic of silicone rubber is superior high temperature resistance, cold resistance performance, the use of the temperature range is between-100 degrees- + 300 degrees. With excellent aging resistance (ozone resistance, oxidation resistance, radiation resistance, light resistance, climate resistance).
In the free state, there is no significant change in the performance after the outdoor exposure for several years. And has excellent electrical insulation performance, and odorless, non-toxic in line with the national health standards.
· Various characteristics and uses of silicone rubber
1. Heat resistance: silicone rubber has much better heat resistance than ordinary rubber, and can be used almost forever at 150 degrees without performance change; it can be used continuously at 200 degrees for 10,000 hours; it can also be used for some time at 350 degrees.
2, cold resistance: ordinary rubber delay is-20 degrees ~ -30 degrees, that is, silicone rubber in-60 degrees ~ -70 degrees still has good elasticity, some special formula of silicone rubber can also withstand very low temperature.
3, hou resistance: ordinary rubber is rapidly degraded under the action of ozone produced by corona discharge, while silicone rubber is not affected by ozone. And for a long time in ultraviolet light and other climate conditions, its physical properties are only small changes.
4, electrical performance: silicone rubber has a very high resistivity and its resistance value remains stable in a very wide range of temperature and frequency range. At the same time, silicone rubber has a good resistance to high pressure corona discharge and arc discharge.
5, conductivity: when conductive filler (such as carbon black) is added, silicone rubber will be conductive.
6, thermal conductivity: when some thermal conductivity fillers are added, silicone rubber will have thermal conductivity.
7, Radiation resistance: the radiation resistance of silicone rubber containing phenyl group is greatly improved.
8, flame retardant: silicone rubber itself is combustible, but when adding a small amount of flame retardant, it has flame retardant and self-extinguishing; and because silicone rubber does not contain machine halide, so combustion does not smoke or release gas.
9. Air permeability: silicone rubber film has better air permeability than ordinary rubber and plastic wax film. Another feature is its strong selectivity for different air permeability.
Silicone rubber products are widely used in industrial machinery, aviation, automobile, electronics, construction, medicine, chemical, food and other industries, is the best production of seals, heat resistant liner, partitions, shock absorption materials, insulation components, outdoor seals and other rubber materials.
Advantages: it can be used in-60℃ ~ + 200℃ working environment for a long time, transparent, non-toxic, tasteless, good insulation performance, good processing performance, disadvantages: wear resistance, tear performance and oil resistance, poor chemical medium resistance. Widely used in electric thermal appliances, electronic and electrical industry, aviation, defense, machinery, construction industry, medical, food, health field, as well as kitchen supplies, household miscellaneous products.
· Silicone rubber has been widely used in various industries:
1, general industrial and civil silicone rubber products;
2, all kinds of silicone tube, catheter, heat-resistant seal, heat-resistant wire, cable sheath, etc.;
3, low hardness silicone products, foam silicone sealing strip, foam silicone sealing pipe, swimming cap, etc.;
4, food grade silicone products: such as the sealing ring on the plastic box, environmentally friendly silicone gasket for electric thermal appliances, and medical equipment molding;
5, used for the manufacture of general industrial or civil colored silicone rubber products;
6, used for the manufacture of color catheter, wire, cable sheath, silicone terminal sheath, silicone electrode sheath of various silicone rubber products;
7, used for high voltage insulators, lightning arrester coat and other products;
8, used for TV high voltage cap, electrical socket, plywood and other requirements of flame retardant products
