HALOGEN-FREE FLAMEPROOF THERMOPLASTIC RESIN COMPOSITION

摘要

Provided is a nonhalogenated flame retardant thermoplastic resin composition which is environment-friendly because of using no halogen-based flame retardant and is safe to a fire. The nonhalogenated flame retardant thermoplastic resin composition comprises 100 parts by weight of a thermoplastic resin; and 0.1-50 parts by weight of a cyclic alkyl phosphonic acid compound or open alkyl phosphonic acid compound represented by the formula 1, wherein R1, R2, R3 and R4 are a C1-C6 alkyl group, a C6-C10 aryl group or an aryl group substituted with an alkyl group; and n is an integer of 0-1. Optionally, the composition comprises further 0-50 parts by weight of an aromatic phosphoric acid ester compound.