三螺杆挤出过程对PET力学性能的影响规律  

Influence Law of Mechanical Property of PET by Tri-screw Extruder

作　　者：何和智 黄照夏 连叶骐 陈哲 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心,聚合物成型加工教育部重点实验室,广东广州510640

出　　处：《塑料》2013年第2期50-53,共4页Plastics

基　　金：国家支撑计划项目(2009BAI84B05)

摘　　要：对三螺杆排气挤出机设计3种不同的螺杆组合,在不同的螺杆转速和喂料速度下加工PET,研究三螺杆排气挤出机在加工过程中的各工艺参数,对于无需预干燥加工的PET力学性能的影响规律。通过对3种螺杆组合加工出的试样进行研究得出结论:对于特定的材料和工艺,存在1个最佳工作点,在稳定的工作条件下,实现PET的无需预干燥加工,而且保持了较好的力学性能。Tri-screw vented extruder was designed by changing the screw element structure of vented section,which was applied to study mechanical properties of PET processed by different screw structure and rotated speed. According to the experimental results and its analysis, a best working point existed for special technology and rough material, and the best mechanical properties could be obtained under steady conditions,so as to achieve the goal of non-predrying PET by tri-screw extruder.

关 键 词：三螺杆排气挤出机 节能 聚对苯二甲酸乙二醇酯(PET) 力学性能 无需预干燥 

分 类 号：TQ330.4[化学工程—橡胶工业]