PPS Chinese name is polyphenylene sulfide. It has the advantages of hard and brittle, high crystallinity, inflammability, good thermal stability, high mechanical strength, excellent electrical properties, strong chemical corrosion resistance and so on. PPS is one of the best varieties of heat resistance in the engineering plastic department. The thermal deformation temperature of the material modified by glass fiber is generally greater than 260 degrees, and the chemical resistance is second only to PTFE. In addition, it also has small shrinkage, low water absorption, good fire resistance. Good resistance to vibration fatigue, strong resistance to arc, especially at high temperature. Excellent electrical insulation in high humidity. But its disadvantages are brittleness, toughness, low impact strength, after modification, can overcome the above shortcomings, obtain very excellent comprehensive performance.

The application of pps is based on its excellent heat resistance as the center, taking into account its anti-friction self-lubrication, chemical stability, dimensional stability, flame retardant and electrical insulation. In the chemical industry pps can be used for synthesis, transportation, storage of materials, reaction tanks, pipes, valves, chemical pumps, etc. pps in the mechanical center can be made of impeller, blade, gear, eccentric, bearing, clutch and wear-resistant parts; pps is mainly used in the field of electronic and electrical appliances, such as the production of transformer skeleton, high-frequency coil skeleton, plug, socket, wiring frame, contactor drum pieces and various precision parts.