环氧扩链剂增容PET/PA6共混物对结晶与流变性能的影响  

Effect of Epoxy-based Chain Extender on Crystallization Behavior and Rheological Property of PET/PA6 Blends

作　　者：韩硕 王向东[1] 陈士宏[1] 姜璨 王亚桥 HAN Shuo;WANG Xiangdong;CHEN Shihong;JIANG Can;WANG Yaqiao(School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China)

机构地区：[1]北京工商大学材料与机械工程学院

出　　处：《中国塑料》2019年第10期23-27,58,共6页China Plastics

基　　金：国家重点研发计划(2016YFB0302205、2016YFB0302203)

摘　　要：通过熔融共混法将环氧扩链剂添加到聚对苯二甲酸乙二醇酯(PET)/聚酰胺6(PA6)中制备共混物。使用差示扫描量热仪、旋转流变仪、扫描电子显微镜等仪器研究了加入不同添加量环氧扩链剂的共混物的结晶性能、流变性能和相态结构。结果表明,PA6和环氧扩链剂的加入可以显著提高PET的结晶温度和结晶速率,有效地改善了PET/PA6共混物的相容性,从而提高了共混物的性能。PET/PA6 blends were prepared by melt blending with an epoxy-based chain extender, and their crystallization characteristics, rheological properties and phase structures at different addition levels of epoxy-based chain extender were investigated by DSC, rotary rheometer and SEM. The results indicated that the combination of PA6 and epoxy-based chain extender improved the crystallization temperature and crystallization rate of PET domain significantly. Meanwhile, the incorporation of epoxy-based chain extender also enhanced the comprehensive performance of the blends due to the improvement of the compatibility between the PET and PA6 phases.

关 键 词：聚对苯二甲酸乙二醇酯 聚酰胺6 环氧扩链剂 相容性 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]