Self-extinguishing carbon-containing modified polystyrene resin particles, effervescent self-extinguishing carbon-containing modified polystyrene resin particles, self-extinguishing carbon-containing modified polystyrene resin foamed particles, self-extinguishing carbon-containing modified polystyrene resin foam shaped bodies and methods for their preparation

摘要

PROBLEM TO BE SOLVED: To provide a self-extinguishing carbon-containing modified PP foamed molded product having the self-extinguishing property while preferably maintaining rigidity, foaming molding property, chemical resistance, and heat resistance by improving shortcomings of both PS foamed molded product and PP foamed molded product.;SOLUTION: The self-extinguishing carbon-containing modified polystyrene resin particle contains 100 mass parts and more and less than 400 mass parts of PS to 100 mass parts of a carbon-containing PP. It has a PS ratio calculated by the absorbance ratio (D₆₉₈/D₁₃₇₆) at 698 cm^-1 and 1,376 cm^-1 obtained from infrared absorption spectra of the particle central part measured by the ATR infrared spectroscopic analysis of 1.2 or more times the PS ratio of the total particles. The self-extinguishing carbon-containing modified polystyrene resin particles contain 1.5 mass parts and more and less than 6 mass parts of a flame retardant and 0.1 mass part and more and less than 3 mass parts of a flame retardant aid to 100 mass parts of the carbon-containing modified polystyrene resin particle.;COPYRIGHT: (C)2009,JPO&INPIT