动态三螺杆加工超细碳酸钙填充聚丙烯研究  

Study on PP Filled with Ultrafine CaCO_3 by Dynamic Tri-Screw Extruder

作　　者：何和智 付金修 刘伟锋 

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,聚合物成型加工工程教育部重点实验室,广东广州510640

出　　处：《现代塑料加工应用》2008年第2期1-3,共3页Modern Plastics Processing and Applications

基　　金：国家863项目(2002AA333100)

摘　　要：以超细碳酸钙填充聚丙烯作为研究对象,经三螺杆动态加工后,将粒料制成试样并进行力学性能测试和扫描电镜分析。研究了不同振动参数对共混物力学性能和对截面形态结构的影响规律。结果表明,与稳态相比,动态(引入振动力场)加工条件下试样的冲击强度、拉伸强度和断裂伸长率都有显著的提高。PP filled with ultrafine CaCO3 was researched. The mechanical properties and SEM of PP/CaCO3 extruded by dynamic tri-screw extruder were tested. The effect of different dynamic parameters on the mechanical properties and the section morphology structures were investigated. The results show that impact strength, tension strength and elongation ratio at break of the samples are improved remarkably with dynamic processing condition compared with steady condition.

关 键 词：动态三螺杆挤出机 超细碳酸钙 聚丙烯 力学性能 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]