●A new type of high performance thermoplastic resin,
●It has the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability and excellent electrical properties.
●It is widely used in electronics, automotive, machinery and chemical industries.
●The unstretched PPS fiber has a large amorphous region (crystallinity of about 5%), and a crystallization exotherm occurs at 125 ° C, a glass transition temperature of 93 ° C; and a melting point of 281 ° C. The drawn fiber produces partial crystallization during the stretching process (to 30%), and heat treatment of the drawn fiber at a temperature of 130-230 ° C can increase the crystallinity to 60-80%. Therefore, the drawn fiber has no significant glass transition or crystallization exotherm and has a melting point of 284 °C. With the increase of crystallinity after stretching heat setting, the density of the fiber also increases correspondingly, from 1.33 g/cm3 before stretching to 1.34 g/cm3 after stretching, and up to 1.38 g/cm3 after heat treatment.
●PPS is a special engineering plastic with excellent comprehensive performance.
●PPS has high mechanical strength, high temperature resistance, high flame retardancy and strong chemical resistance; it has the advantages of hard and brittle, high crystallinity, flame retardancy, good thermal stability and excellent electrical properties.
●It is one of the best heat-resistant varieties in engineering plastics, and the heat distortion temperature is generally greater than 260 °C.
●It is widely used as a special engineering plastic after being filled and modified. At the same time, it can be made into a variety of functional films, coatings and composite materials, and has been successfully applied in the fields of electronics, aerospace, and automotive transportation.
