POLYPHENYLENE SULFIDE RESIN COMPOSITION, PRODUCTION METHOD OF THE SAME AND MOLDED PRODUCT (AS AMENDED)

摘要

The invention provides a PPS resin composition having excellent heat resistance and excellent electrical properties without damaging excellent physical properties including mechanical properties and low gas generation which PPS intrinsically has. There is provided a resin composition comprising (a) a polyphenylene sulfide resin and (b) one or more copolymers selected among a tetrafluoroethylene/hexafluoropropylene copolymer, an ethylene/tetrafluoroethylene copolymer and a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer. In the resin composition, (a) the polyphenylene sulfide resin forms a continuous phase, (b) one copolymer selected among the above components forms primary dispersed phases, and the primary dispersed phase includes secondary dispersed phases formed by a component different from the component of the primary dispersed phase.

主权项

1. A polyphenylene sulfide resin composition comprising 80 to 250 parts by weight of (b) one or more copolymers selected among a tetrafluoroethylene/hexafluoropropylene copolymer, an ethylene/tetrafluoroethylene copolymer and a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, relative to 100 parts by weight of (a) a polyphenylene sulfide resin, wherein
a molded product made of the resin composition has a resin phase-separated structure observed with an electron microscope, such that (a) the polyphenylene sulfide resin forms a continuous phase, that (b) one copolymer selected among the tetrafluoroethylene/hexafluoropropylene copolymer, the ethylene/tetrafluoroethylene copolymer and the tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer forms primary dispersed phases, and that the primary dispersed phase in the resin composition includes secondary dispersed phases formed by a component different from the component of the primary dispersed phase.