聚烯烃及其共聚物改性PET的研究进展  

Recent Development of PET Modified by Polyolefins and Their Copolymers

作　　者：孙东成[1] 沈家瑞[2] 

机构地区：[1]华南理工大学应用化学系,广东广州510640 [2]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《中国塑料》2004年第12期1-7,共7页China Plastics

基　　金：广东省科技计划项目资助课题 (2 0 0 3C3 2 72 1)

摘　　要：综述了近年来聚烯烃 (PO)及其共聚物改性PET的研究进展。采用反应增容的方法 ,通过酸酐基团、离子基团、异氰酸酯基、环氧基团等与PET的端羧基和羟基在挤出共混过程中“原位”形成的增容剂可大大提高PET/PO的相容性 ,从而改善了共混物的力学性能、流变性能、结晶性能。通过增容或利用不同的聚合物的相容性、反应性差异可使PET/PO之间“自组装”形成特定的形态结构。The recent development of PET modified by polyolefins (POs) and their copolymers was reviewed. The compatibilization between PET and polyolefins was achieved via in situ reactions between epoxy, acid anhydride, isocyanate or ester groups on modified polyolefins and their copolymers and carboxyl or hydroxyl end-groups on PET. The mechanical, rheological and crystallization behaviors of PET were improved through the modifications. Special morphologies of blends of PET/POs can be obtained by self-assemble of POs with various compatibility and reactivity.

关 键 词：聚对苯二甲酸乙二醇酯 聚烯烃 形态结构 性能 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]