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Five properties of mold silicone

Aug 16, 2019

Heat resistance: Mold silicone has much better heat resistance than ordinary rubber. It can be used almost at 150 degrees without performance change; it can be used continuously for 10,000 hours at 200 degrees; it can also be used at 350 degrees. a period of time. Widely used in applications requiring heat resistance: hot water bottle seal ring pressure cooker ring heat-resistant handle.

Cold resistance: ordinary rubber is -20 degrees to -30 degrees late, that is, silicone rubber still has good elasticity at -60 degrees to -70 degrees, and some specially formulated silicone rubber can withstand extremely low temperatures.

Flame retardancy: Silicone rubber itself is flammable, but when it is added with a small amount of flame retardant, it is flame retardant and self-extinguishing; and because silicone rubber does not contain organic halides, it does not smoke or emit toxic gases when burned. Various fireproof strict occasions.

Electrical properties: Silicone rubber has a high electrical resistivity and its resistance 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. High-voltage insulators, TV high-voltage caps, electrical components.

A typical silicone rubber, polydimethyl siloxane, has a helical molecular configuration with a small intermolecular force and thus good resilience, while the nails pointing out of the spiral are free to rotate, thus making silicon Rubber has unique surface properties such as water repellency and surface release.

Key words: Jinan mold silicone, Jinan hydrogen-containing silicone oil, road bridge silicone grease

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