橡胶含量及加工条件对HIPS/PS/PB-g-PS共混物性能的影响  

Effect of Rubber Content and Processing Condition on Properties of HIPS/PS/PB-g-PS Blend

作　　者：代汝军[1] 孙树林[1] 谭志勇[1] 杨海东[1] 张会轩[1,2] 

机构地区：[1]长春工业大学合成树脂与特种纤维研究中心,吉林长春130012 [2]中国科学院长春应用化学研究所,吉林长春130012

出　　处：《塑料》2009年第5期55-57,共3页Plastics

摘　　要：用乳液聚合以CHP-FeSO4为引发体系合成PB-g-PS接枝粉料,与商业高抗冲聚苯乙烯(HIPS)和聚苯乙烯(PS)共混制备HIPS/PS/PB-g-PS合金。当HIPS的质量分数为10%,PB-g-PS的加入量为15%时体系发生脆韧转变。当HIPS质量分数为10%,橡胶加入量为15%时,体系的冲击强度随挤出机转数的增加而变大。扫描电镜(SEM)研究表明:挤出机转数低加工时剪切强度不够,体系的相容性不好导致脆性断裂。PB-g-PS graft powder was synthesized by emulsion polymerization. HIPS/PS/PB-g-PS blends were produced by mixing PS and HIPS. When weight content of HIPS was 10 % , brittle-to-ductile transition was occurred and impact strength increased with the increasing revolution. Scanning electron microscope （SEM） results showed that bad compatibility was the reason for brittle fracture when revolution was low.

关 键 词：聚苯乙烯 橡胶接枝聚苯乙烯 核壳粒子 脆韧转变 冲击强度 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]