Explanation
The elastomer obtained by copolymerization of tetrafluoroethylene and propylene through lotion is a nontoxic, tasteless, non viscous, tea brown to dark brown, amorphous polymer with a density of 1.55g/m3 and a glass transition temperature of -15-0 ° C, and has excellent high temperature resistance (above 200 ° C) and oil resistance. Generally, peroxide vulcanizing agent a, bis (tert butoxy peroxide) are used to vulcanization diisopropylbenzene and vulcanization accelerator triallyl isocyanate. The tensile strength of vulcanized rubher is 14.7-21.6MPa. The hardness (Shore A) is 70, the embrittlement temperature is -40T, and the relative dielectric constant (1kHz) is 6; It has good stability and chemical resistance to various vehicle fuels, lubricating oils, brake oils, mineral oils and silicone oil, especially excellent resistance to high concentrations, alkalis, strong oxidants, high pressure steam, water and electrical insulation. It has low air permeability and service temperature of -40-200T. Widely used in the automotive, petroleum, textile, chemical, and food industries.
Classification
Organic polymer materials -> Rubber