反应挤出法制备PPO/PA6/SEBS共混物的研究  

STUDIES ON PPO/PA6/SEBS BLENDS VIA REACTIVE EXTRUSION

作　　者：冯威[1] 励杭泉[1] 高瑜[1] 武德珍[1] 金日光[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《高分子材料科学与工程》2000年第6期79-82,共4页Polymer Materials Science & Engineering

基　　金：国家八六三计划新材料领域资助项目

摘　　要：研究了 PPO- g- MA对 PPO/PA6 /SEBS共混体系的原位增容作用和 SEBS对 PPO/PA6的增韧作用。 PPO/PA6 /SEBS共混物的 TEM结果表明 ,SEBS分散在 PPO中 ,而 PPO又分散在 PA6基体中。 TEM和 SEM的结果均表明 ,PPO- g- MA细化了分散相的相畴 ,增加了界面强度 ;冲击实验的结果表明 ,PPO- g- MA和 SEBS的用量分别为 2 0 %～ 2 5 %和 10 %～ 15 %时 。PPO g MA, which was prepared by melting extrusion, has demonstrated to be an efficient reactive compatibilizer in compatibilizing the immiscible polymer blend of PPO, PA6 and SEBS. The PPO g MA copolymer in situ formed during melt blending tends to reduce the interfacial tension and results in finer phase domains and enhanced interfacial adhesion. The TEM result shows that PPO particles containing SEBS elastomeric phase is dispersed in PA matrix. The impact property improvement of PPO/PA6 blend resulted from adding elastomer SEBS is very drastic. When the content of PPO g MA is between 20%~15%(mass%) and SEBS is between 10%~15%(mass%), the brittle ductile transition of PPO/PA6/SEBS blend occurs.

关 键 词：聚苯醚 聚酰胺 反应挤出 共混物 原位增容 

分 类 号：O632.32[理学—高分子化学] O633.22[理学—化学]