Keywords Polystyrene, HIPS, POE, SBS, CaCO3, dispersing morphology, property, brittle to ductile transition, BDT, toughness, nanometer, core-shell particles, inclusion.;

• 聚苯乙烯;SBS;POE;碳酸钙;包裹结构;核壳粒子;增韧;脆韧转变;纳米无机粒子;HIPS;增强;形态;弹性体;