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What are the properties of silicone rubber materials?

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1. Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber, and can be used almost permanently at 150 degrees without any performance changes; It can also be used continuously for 10000 hours at 200 degrees Celsius; It can also be used for a period of time at 350 degrees Celsius;
2. Cold resistance: The temperature resistance of ordinary rubber is -20 ° C to -30 ° C, while silicone rubber still has good elasticity at -60 ° C to -70 ° C. Special formula silicone rubber can also withstand extremely low temperatures;
3. Weather resistance: Ordinary rubber rapidly degrades under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone. And under long-term exposure to ultraviolet radiation and other climatic conditions, its physical properties only show slight changes;
4. Electrical performance: Silicone rubber has a high electrical resistivity and its resistance value remains stable over a wide temperature and frequency range. At the same time, silicone rubber has good resistance to high-voltage corona discharge and arc discharge.
5. Conductivity: When conductive fillers (such as carbon black) are added, silicone rubber becomes conductive.
6. Thermal conductivity: When certain thermal conductive fillers are added, silicone rubber has thermal conductivity.
7. Radiation resistance: The radiation resistance of silicone rubber containing benzene is greatly improved.
8. Flame retardancy: Silicone rubber itself is flammable, but when a small amount of flame retardant is added, it has flame retardancy and self extinguishing properties; And because silicone rubber does not contain organic halides, it does not emit smoke or toxic gases during combustion.
9. Breathability: Silicone rubber film has better breathability than ordinary rubber and plastic waxing film. Another characteristic is its strong selectivity for different air permeability rates.

In summary: Advantages: Can be used for a long time in a working environment of -60 ℃~+200 ℃, transparent, non-toxic, odorless, with good insulation performance and processing performance. Disadvantages: Wear resistance, tear resistance, oil resistance, and poor resistance to chemical media.

High Tear Strength Precipitated Type Silicone Rubber

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