中国塑料 ›› 2011, Vol. 25 ›› Issue (07): 42-45 .DOI: 10.19491/j.issn.1001-9278.2011.07.010

• 材料与性能 • 上一篇    下一篇

PA6/EPM/EPM-g-MAH共混物结构与性能研究

徐铭韩 宫岐山 李甜甜 邱桂学   

  1. 青岛科技大学橡塑科学与工程教育部重点实验室
  • 收稿日期:2011-03-14 修回日期:2011-05-10 出版日期:2011-07-26 发布日期:2011-07-26

Study on Morphology and Properties of PA6/EPM/EPM-g-MAH Blends

XU Minghan;GONG Qishan;LI Tiantian;QIU Guixue   

  • Received:2011-03-14 Revised:2011-05-10 Online:2011-07-26 Published:2011-07-26
  • Contact: XU Minghan

摘要: 采用二元乙丙橡胶接枝马来酸酐(EPM-g-MAH)作为二元乙丙橡胶(EPM)增韧聚酰胺6(PA6)的增容剂,研究了PA6/EPM/EPM-g-MAH三元共混物的流变性能、力学性能和微观形态。结果表明,EPM-g-MAH可以与PA6发生增容反应生成接枝共聚物,改善了PA6和EPM的界面相容性。随着EPM-g-MAH含量的增加,共混物中分散相粒径更加细化,共混物的熔融峰温下降,缺口冲击强度显著提高,当EPM/EPM-g-MAH的配比为10/10时,共混物的冲击强度达到最大为47 kJ/m2,比纯PA6提高了8倍。

关键词: 二元乙丙橡胶接枝马来酸酐, 共混, 增容作用, 增韧, 聚酰胺6, 二元乙丙橡胶

Abstract: Ethylene-propylene rubber grafted maleic anhydride (EPM-g-MAH) was introduced into blends of polyamide 6 /ethylene propylene rubber (PA6/EPM) as a compatibilizer. The effects of EPM-g-MAH on the rheological behavior, mechanical properties, and morphology of the ternary blends were studied. It showed that PA6 and EPM were compatibilized by in-situ reaction between PA6 and EPM-g-MAH. EPM domains were distributed more homogeneously in PA6 matrix with the increasing EPM-g-MAH content. When the weight ratio of EPM/EPM-g-MAH was 10/10, the notched impact strength reached maximum of 47 kJ/m2, which increased 8 times that of neat PA6.

Key words: ethylene-propylene rubber grafted maleic anhydride, blending, compatibilization, toughening, polyamide 6, ethylene-propylene rubber