FLAMEPROOF THERMOPLASTIC RESIN COMPOSITION

摘要

PURPOSE: A flame-retardant thermoplastic resin composition which includes impact modifiers and phosphorous-based compounds are provided to increase mobility and moldability through working temperature degradation. CONSTITUTION: A flame-retardant thermoplastic resin composition comprises a polycarbonate resin, an impact modifier, and resorcinol bis(diphenyl phosphate). The impact modifier has a bimodal system, a large-size rubber modified vinyl-based graft copolymer which contains a rubber polymer having an average particle diameter of 0.3-0.7 micron, and a small-size rubber modified graft copolymer(b2) having an average particle diameter of 0.05-0.27 micron. The mix ratio of large-size rubber modified vinyl-based graft copolymer to small-size rubber modified graft copolymer is 1:1.3-1:3.