The heat-vulcanizable silicone hot vulcanization (HTV)
HTV is the most important class in the organic silicon products, and methyl vinyl silicone (VQ) is the main variety in the HTV, commonly known as high-temperature plastic. Methyl vinyl silicone (raw rubber) is a kind of jelly which is colorless, odorless, non-toxic and no mechanical impurities. The appropriate structure control agents, curing agents with compounding additives should be added and then heating the molded molding or extrusion molding, and then made into various silicone products by Sec sulfide. The products have excellent electrical insulation, anti-arcing, corona, spark strong, waterproof, moisture-proof, impact resistance, shock resistance, physical inertia, permeability, and other properties. It is widely used in household kitchen supplies, crisper, vacuum preservation cover, machinery, car folded barrels, medical health silicone tubes, and it can be also made into a variety of shapes, seals, gaskets, tubes, boxes, lids, can put electric refrigerator and microwave silicone molds, precision casting release agent.
Room temperature vulcanizing silicone
Room temperature vulcanizing (RTV) silicone generally includes two categories: condensation molding and processing. The molding room is based on a linear polysiloxane. It has good heat resistance, water repellency, electrical insulating properties, while having excellent physical and mechanical properties, particularly the tensile strength, relative elongation and tear strength have been significantly improved. It is widely used in heat-resistant, moisture-proof, electrical insulation, high strength silicone products, such as silicone kitchenware and other aspects. Condensation type room temperature vulcanizing silicone is characterized by the condensation reaction between silanols with other active substance. The single-component RTV silicone, (referred RV-1 glue) is usually made of the base polymer, crosslinking agents, catalysts, fillers and additives, which has excellent electrical insulation properties and chemical stability, and can resistant to water, resistant to ozone, weathering resistance, good adhesion to a variety of metallic and non-metallic materials. It is mainly used for the coating of various electronic components and electrical equipments, encapsulating material from the insulation, moisture, and shock effect; sealing caulking compounds can also be used as an elastic adhesive or the like as a protective material of the surface of the semiconductor device; On the use of dual-component RTV silicone (referred to as the RV-2 glue) rubber RTV-1 convenience, a variety can be made into vulcanized products for a variety of performance specifications, and can be deeply vulcanized, they have been widely used in home kitchen supplies, crisper, vacuum preservation cover, electronic, color printing industry for insulation, packaging, caulking, sealing, moisture-proof, anti-seismic and production of silicone materials.
In short, the silicone has good high temperature and low temperature resistance, electrical insulation properties, resistance to oxygen aging resistance, and chemical stability. Therefore, it has a unique purpose, which can be used for crisper, making crisper performance, has good high temperature and cold resistance.
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