Electroconductive resin composition using fluorine-containing graft copolymer

摘要

Disclosed is an electroconductive and thermoplastic resin composition which is comprised of 99-80 parts by weight of a fluorine-containing graft copolymer and 1-20 parts by weight of carbon black. The graft copolymer is one obtained by graft copolymerization of a fluorine-containing monomer that gives a crystalline polymer, such as vinylidene fluoride, with a fluorine-containing elastomeric copolymer having peroxy bond, such as a ternary copolymer of vinylidene fluoride, chlorotrifluoroethylene and an unsaturated peroxy compound. To attain good conductivity while maintaining favorable mechanical properties of the fluorine-containing graft copolymer, it is essential to use a carbon black which is not smaller than 500 m2/g in specific surface area and not smaller than 250 ml/100 g in oil absorption.