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Silicone rubber (Q) is a special rubber with silicon and oxygen atoms in the main chain, and the silicon element plays a major role. Its main characteristics are high temperature resistance (* high 300 ℃) and low temperature resistance (* low -100 ℃), and it is currently a cold and high temperature resistant rubber. At the same time, it has excellent electrical insulation, high stability to thermal oxidation and ozone, and large chemical inertness. The disadvantage is that the mechanical strength is low, oil resistance, solvent resistance and poor acid and alkali resistance, more difficult to vulcanize, the price is more expensive. Use temperature:-60 ℃ ~ 200 ℃. Mainly used in the production of high and low temperature resistant products (hose, seals, etc.), high temperature resistant wire and cable insulation layer, because of its non-toxic and tasteless, but also used in food and medical industry.
Woven bag, also known as bag. It is a kind of plastic for packaging. Its raw materials are generally polyethylene, polypropylene and other chemical plastic raw materials. Plastic woven bags are made of polypropylene (English name PP) as the main raw material, extruded and stretched into flat wire, and then woven, woven and made of bags.