固相力化学技术制备HDPE／PP的增容剂增容效果研究  

Study on Compatibilizing Effect of Compatibilizer Prepared by Solid-state Mechanochemical Technique for HDPE/PP

作　　者：朱小庆[1] 卢灿辉[1] 梁梅[1] 

机构地区：[1]高分子材料工程国家重点实验室,四川大学高分子研究所,四川成都610065

出　　处：《塑料工业》2009年第1期17-20,共4页China Plastics Industry

基　　金：国家高技术研究发展计划(863计划,项目批准号2008AA06Z343)资助项目

摘　　要：采用固相力化学技术,使聚丙烯(PP)和高密度聚乙烯(HDPE)发生力化学反应,制备了对PP、HDPE具有显著增容效果的复合粉体。研究了复合粉体共研磨次数、填充量对HDPE/PP复合材料力学性能的影响。研究表明,加入力化学制备的复合粉体可显著提高HDPE/PP复合材料的力学性能,当加入质量分数为10%的增容粉体时,共混材料的断裂伸长率由常规熔融共混试样的18.3kJ/m2提高至22.3kJ/m2。差示量热扫描分析(DSC)及扫描电子显微镜(SEM)研究表明加入力化学制备的复合粉体可显著改善HDPE和PP的相容性。The high-density polyethylene （HDPE） /polypropylene （PP） composite powder with compatibilizing effect for HDPE/PP blend was prepared through mechanochemical processing by the self-designed solid-state mechanochemical reactor. The influence of the cycles of mechanochemical milling and content of the composite powder on the mechanical properties of HDPE/PP blend was evaluated. The results showed the addition of the composite powder could improve the mechanical properties of the HDPE/PP blend obviously, When the mass fraction of the composite powder was 10%, the elongation at break of the composite increased from 18.3 kJ/m^2 to 22. 3 kJ/m^2. Different scanning calorimeter （DSC） analysis and scanning electron microscopy （SEM） observation further confirmed the compatiblizing effect of the composite powder.

关 键 词：固相力化学 增容 高密度聚乙烯 聚丙烯 共混物 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]