Application and properties of PPS fiber

PPS fiber products can be used for paint, paint, high-temperature flue filtration, dust removal bag, fast air flow filter bag, chemical industry filter bag, paper industry, drying in electrical industry, needle felt, coating, special cable coating, flame retardant substances in aerospace industry, etc. PPS fiber is always a special fiber that can be used in high-temperature corrosive environment and high-performance during production, Among them, Daiwa textile company of Japan developed PPS fiber as industrial filter cloth coating for chemical filtration in the field of wet filtration. The mixture of PPS fiber and CF can be used as reinforcement of high-performance composites.

And the conforming materials for aerospace are non stretched PPS fluorocarbon paint, which has large amorphous, exothermic epoxy zinc rich primer at 125 ℃, the glass transition temperature is 93 ℃, the melting point is 281 ℃, and the crystallization can be increased by 60 ~ 80% when the stretched fiber is heat treated at temperature. Therefore, the stretched fiber has no obvious glass transition or crystallization exothermic phenomenon, Its melting point is 284 ℃. With the increase of crystallinity after tensile thermal characterization, the density of fiber increases accordingly. Compared with coating grade and injection grade PPS, the properties of PPS resin for fiber are very different. There are higher requirements for phase linear degree, molecular weight, polydispersity coefficient, melt index, melting viscosity of alcohol acid paint and impurities. The basic characteristics of fiber grade PPS are as follows:, PPS fiber non-woven filter fabric can meet most of the dry filtration operations. It can maintain high residual strength when used for a long time at high temperature and dry heat. PPS fiber can still maintain its original performance under extremely bad conditions.

It has outstanding chemical stability of epoxy zinc rich primer, second only to polytetrafluoroethylene fiber. Only strong oxidant can degrade the fiber at high temperature. Therefore, PPS fiber is suitable for filtration of many strong corrosive chemical media. Like most conventional fibers, alkyd ready mixed paint, PPS fiber has excellent textile processing performance and is very easy to manufacture and process, PPS can be spun into multifilament, polyurethane paint and monofilament of various specifications. There are many factors affecting the embroiderability of PPS, but the main ones are molecular structure and melt index. The better the linearity of PPS resin, the better the spinnability.