Explanation

The full name is polymethylene sulfide, also known as polyphenylene ether or polyphenylene sulfide. It is a linear polyphenylene sulfide resin, which belongs to crystalline polymer. polyphenylene sulfide is a kind of polyarylene sulfide resin, usually brown or beige, with high crystallinity, which is a thermoplastic resin. It has high strength and modulus, good dimensional stability, strong creep resistance and fatigue resistance. In addition, it also shows excellent corrosion resistance, flame retardancy, high temperature resistance, radiation resistance and insulation. The relative density of polyphenylene sulfide is 1.36g/cm 3， The melting point is about 280 ° C to 290 ° C, and the glass transition temperature is about 90 ° C. It needs to exceed 430 ° C to 460 ° C in the air to begin decomposition, while in a nitrogen atmosphere, there is no significant weight loss when heated below 500 ° C. The flame retardant grade of this resin is UL-94V0, and it is insoluble in most organic solvents below 200 ° C. The industrial production of polyphenylene sulfide usually adopts sodium sulfide method or sodium hydrosulfide method. As China's engineering plastics and special engineering plastics resin with independent intellectual property rights, it has successfully achieved industrial production. Due to its excellent comprehensive performance, polyphenylene sulfide has been widely used in fields with special requirements such as aircraft manufacturing, automotive industry, electronics industry, chemical industry, and national defense industry, such as those that require high temperature resistance, flame retardancy, corrosion resistance, insulation, and wear resistance.

Classification