Foam composition with excellent thermal-shrinkage property and preparing method

摘要

PURPOSE: A foam composition with excellent thermal compression properties is provided to be lightened even with improving thermal contraction properties in high temperatures, to improve thermal resistance, and to maximize residual stress releasing effect. CONSTITUTION: A foam composition comprises 10-30 parts by weight of a heat-resistant filler, 1-5 parts by weight of additives for a foaming body, 0.5-1.5 parts by weight of a cross-linking agent, and 1-20 parts by weight of organic blowing agent, based on 100.0 parts by weight of mixture substrate. The mixture substrate is mixed of 20-50 weight% of an olefin-based copolymer, 20-40 weight% of ethylene/vinylacetate copolymer, 30-40 weight% of a heat resistant resin/EVA master batch. The heat resistant resin/EVA master batch consists of 60-80 weight% of ethylene vinyl acetate, 20-40 weight% of thermal resistant resin, and 10-30 of an inorganic filler.