PPS is one of the engineering plastics with the best heat resistance, and its thermal deformation temperature (temperature resistance) is generally greater than 260 degrees. It also has the advantages of small molding shrinkage (about 0.08%), low water absorption (about 0.02%), good fire resistance and good vibration fatigue resistance. The injection molding temperature is 300-330℃.

It is a kind of thermoplastic special engineering plastic with excellent comprehensive properties, with outstanding characteristics of high temperature resistance, corrosion resistance and superior mechanical properties. PPS is a sulfur-containing aromatic polymer. Linear polyphenylene sulfide is crosslinked into thermosetting plastic above 350℃, and branched polyphenylene sulfide is thermoplastic plastic.

PPS was first industrialized by American Phillips Company in 197 1 year. After the patent expired, Japanese companies began to develop and produce.