增容剂对三元乙丙橡胶/尼龙共混胶相态及性能的影响

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张晓芳， 王玲玲， 邓涛*

（青岛科技大学 高分子科学与工程学院,山东 青岛 266042）

 摘要： 探讨了不同种类的增容剂对三元乙丙橡胶/尼龙(EPDM/PA)硫化胶物理机械性能和共混胶相态的影响。结果表明：增容剂为CPE时，硫化胶的拉伸永久形变值最小；增容剂为EPDMgMAH时，硫化胶的拉伸强度和撕裂强度最大，DIN磨耗值最小；增容剂为POEgMAH时，硫化胶的扯断伸长率最大。在DSC分析中，增容剂POEgMAH使共混胶中两相的玻璃化转变温度值靠近最大。从扫描电镜照片中看出，增容剂EPDMgMAH对两相相容性的提高最明显。

 关键词： 三元乙丙橡胶； 三元尼龙； 增容剂； 相容性

 中图分类号： O 631.2+1        文献标志码： A

 Influence  of   Different Compatibilizers on  Properties and Phase of EPDM/PA Blends Rubber

 ZHANG Xiaofang, WANG Lingling, DENG Tao

 (CollegeofPolymerScience and Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)

 Abstract: This paper discusses the impact of physical and mechanical properties of EPDM/PA vulcanized rubber and the phase of EPDM/PA blends rubber with different compatibilizers. The results showed that: The tensile set of vulcanized rubber is the minimuim with the compatibilizer of CPE; the tensile and tear strength of vulcanized rubber are the maximuim with the compatibilizer of EPDMgMAH, and the value of DIN abrasion is the minimum; the elongation at break showed the maximum with the compatibilizer of POEgMAH. In DSC analysis, the compatibilizer of POEgMAH made the glass transition temperature of two phases of blends rubber dose to the maximum value. It can be seen  from the  SEM images  that  the compatibilizer of EPDMgMAH obviously improves the compatibility of the two phases.

 Key words:  EPDM; ternary nylon; compatibilizer; campatibility

收稿日期： 20150127

作者简介： 张晓芳(1990—)，女，硕士研究生. *通信联系人.

文章编号：16726987（2016）02018506； DOI： 10.16351/j.16726987.2016.02.013