同向非对称双螺杆挤出TPU／PP共混体系研究  

Studies on TPU/PP Blends Processed in Co-Rotating Non-Twin Screws Extruder

作　　者：罗家胜[1,2] 徐百平[1,2] 杜遥雪[2] 冯彦洪 

机构地区：[1]广东轻工职业技术学院,广东高校高分子材料加工工程技术开发中心,广东广州510300 [2]五邑大学机电工程学院,广东江门529020 [3]华南理工大学聚合物成型加工教育部重点实验室,广东广州510640

出　　处：《现代塑料加工应用》2015年第2期54-56,共3页Modern Plastics Processing and Applications

基　　金：国家自然科学基金项目(11272093);广东省部产学研项目(2012B091100432);广东省高等职业院校珠江学者岗位计划资助项目(2012);广东轻院自然科学基金(KJ201212)

摘　　要：通过对同向非对称双螺杆挤出机和传统同向双螺杆挤出机的应用,研究了在无添加相容剂情况下热塑性聚氨酯/聚丙烯(TPU/PP)共混体系的力学性能和相形态。结果表明,和传统同向双螺杆挤出机相比,同向非对称双螺杆挤出机在长径比和捏合块均减少的情况下加工的共混物力学性能更好,分散相的平均粒径更小、更均匀,并且共混物的韧性和相容性更好。Using co-rotating non-twin screw extruder and the traditional twin screw extruder, the mechanical properties and morphology of thermoplastic polyurethane/polypropylene blends without adding any compatibilizers were investigated. The results indicate that compared to traditional twin screw extruder,in the case that the non-twin screw extruder has shorter L/D ratio and fewer kneading blocks, the mechanical properties of non-twin screw extruded blends are better, and the average particle size of dispersed phase is smaller and more uniform,moreover,the toughness and compatibility of the blends are better.

关 键 词：聚丙烯 热塑性聚氨酯 同向非对称双螺杆 力学性能 共混 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]