COMPOSITION FOR THERMOPLASTIC FIRE RETARDANT RESIN

摘要

PURPOSE: Provided is a composition of styrene thermoplastic fire retardant which has excellent fire retardant property as well as heat resistance, tensile strength and impact strength. CONSTITUTION: The composition comprises: (A) 40-95wt.% rubber-modified styrene resin containing (a1) 20-100wt.% of styrene-acrylonitrile graft copolymer having 10-60wt.% rubber and 18-50wt.% of styrene-acrylonitrile except the rubber content and (a2) 0-80wt.% of styrene-acrylonitrile copolymer resin having 18-50wt.% of acrylonitrile; (B) 5-60wt.% of polyphenylene ether resin; (C) 10-40wt.% of styrene resin; (D) 2-30wt.% of styrene-acrylonitrile copolymer resin (based on 100wt.% of (A)+(B)+(C)) having 5-18wt.% of acrylonitrile; and (E) 0.5-30wt.% of cyclic alkyl phosphonic acid compound (based on 100wt.% of the basic resin of (A)+(B)+(C)).