LLDPE-g-GMA对PET/LLDPE性能的影响  

THE EFFECT OF LLDPE-g-GMA ON THE PROPERTIES OF PET/LLDPE

作　　者：张师军[1] 尹华[1] 余鼎声[2] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京100013 [2]北京化工大学,北京10029

出　　处：《工程塑料应用》2003年第10期2-5,共4页Engineering Plastics Application

基　　金：国家重点基础研究专题经费资助项目(G1999064806)

摘　　要：自制了线性低密度聚乙烯与甲基丙烯酸缩水甘油酯接枝物(LLDPE-g-GMA),研究了LLDPE-g-GMA对聚对苯二甲酸乙二酯/线性低密度聚乙烯(PET/LLDPE)合金体系力学性能、结晶行为及玻璃化转变活化能的影响。结果表明,LLDPE-g-GMA有效地改善了PET/LLDPE的拉伸性能、弯曲性能及冲击性能;同时LLDPE-g-GMA的加入提高了PET的结晶速率,两者有较好的相容性;动态力学试验结果也证明了LLDPE-g-GMA与PET有较好的相容性,LLDPE-g-GMA可以作为PET/LLDPE体系的反应性增容剂。The graft polymer LLDPE-g-GMA was made by ourselves, and the effect of LLDPE-g-GMA on PET/LLDPE mechanical properties, crystallization behavior and glass transition activation energy was studied. The result showed that LLDPE-g-GMA improved the tentile, flexible and impact properties of PET/LLDPE alloy significantly. Meanwhile, the adding of LLDPE-g-GMA increased PET cristillization, there was the compatibility between each other. The DMA test proved a better compatibility between LLDPE-g-GMA and PET. LLDPE-g-GMA could be used as compatibilizer of PET/LLDPE.

关 键 词：LLDPE—g—GMA PET/LLDPE 性能 聚对苯二甲酸乙二酯 线性低密度聚乙烯 塑料合金 反应性增容剂 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TQ325.12