Polyphenylene sulfide (PPS), which is called polyphenylene sulfide, is a thermoplastic resin with a phenylthio group in the main chain of the molecule. Polyphenylene sulfide is a crystalline polymer.
There are many ways to synthesize PPS, such as the self-condensation of halothiophene, melt polymerization of parahalobenzene and sulfur, electrophilic reaction of sulfur and benzene, solution polycondensation of alkali metal sulfide and paradihalobenzene (sodium sulfide method) , Polycondensation of sulfur and paradichlorobenzene (sulfur solution method), polymerization of diphenyl disulfide under the action of Lewis acid, and so on. Currently used in industrial production are the sodium sulfide method and the sulfur solution method.
Good chemical resistance Low creep Low water absorption Good dimensional stability High modulus of elasticity Flame retardant
Electronics: high-voltage components on televisions, computers, housings, sockets, terminals, motor starting coils, blades, brush brackets and rotor insulation parts, contact switches, relays, irons, hair dryers, lamp holders, heaters, F grade film and so on.
Automotive industry: Suitable for exhaust gas recirculation valves and water pump impellers, as well as carburetor, exhaust device, exhaust regulating valve, light reflector, bearing, sensor parts, etc.
Machinery industry: Used as bearings, pumps, valves, pistons, precision gears, as well as copiers, cameras, computer parts, ducts, sprayers, injectors, instrumentation parts, etc.
Chemical industry: used to make acid- and alkali-resistant valves, pipes, fittings, valves, gaskets, and corrosion-resistant parts such as submersible pumps or impellers.
Engineering plastics: manufacture automotive parts, anticorrosive coatings, electrical insulation materials, etc.
Environmental protection field: PPS fiber filter material is used in smelting, chemical industry, building materials, thermal power, waste incinerator, coal-fired boiler and other industries under high temperature and harsh working conditions.
Tableware field: used to make chopsticks, spoons, dishes, etc.