PPS is a kind of thermoplastic special engineering plastics with excellent comprehensive properties. Its outstanding characteristics are high temperature resistance, corrosion resistance and superior mechanical properties.
　　English Name: polyphenylenesulphide proportion: 1.36g/cm3 molding shrinkage: 0.7% molding temperature: 300-330 ℃。 It is a kind of thermoplastic special engineering plastics with excellent comprehensive properties. Its outstanding characteristics are high temperature resistance, corrosion resistance and superior mechanical properties.
　　PPS is a kind of white powder, the average molecular weight is 0.4-0.5 thousand PPS, the dielectric constant is very small, the dielectric loss is quite low, the surface resistivity and volume resistivity are not sensitive to the change of frequency, temperature and humidity, it is a good electrical insulating material, its arc resistance time is also long, the chemical stability of PPS is quite good, except for the strong oxidation acid, such as concentrated sulfuric acid, concentrated nitric acid and aqua regia. In addition, it is not eroded by the vast majority of acid and alkali salts, and has the chemical stability close to that of PTFE. The radiation resistance of PPS is good, and the radiation resistance reaches Gy 1 × 108.