丙烯酸酯橡胶/乙烯甲基丙烯酸酯弹性体（ACM/EMA）共混研究

PDF全文下载：20160100062

张清阳， 原小林， 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： 研究了丙烯酸酯橡胶/乙烯甲基丙烯酸酯弹性体（ACM/EMA）并用比对硫化胶的硫化特性、力学性能、耐热老化性能和耐油性能的影响。结果表明：随着ACM/EMA并用比的减小，硫化胶的交联密度先减小后增大，对焦烧时间影响不大，并用胶的硫化速率先减小后增大，硫化胶的硬度逐渐增大，拉伸强度和100%定伸应力先基本不变后逐渐增大，撕裂强度逐渐变大，硫化胶的质量变化百分数和体积变化百分数均逐渐增大，硫化胶的耐油性能变差；EMA/ACM并用,并没有使ACM胶料的热老化性能变差；硫化剂DCP（过氧化二异丙苯）和TCY（三聚硫氰酸）并用时，在硫化过程中会相互反应，并降低胶料硫化程度,同时产生H2S气体，造成硫化胶表面产生气泡。

关键词： 丙烯酸酯；乙烯甲基丙烯酸酯；硫化剂相互反应；力学性能；热老化性能；耐油性

 中图分类号： TK 6         文献标志码： A

 Study on Acrylate Rubber/Ethylenemethacrylate Elastomer(ACM/EMA) Blend

 ZHANG Qingyang， YUAN Xiaolin, DENG Tao

 (College of Polymer Science and Engineering，Qingdao University of Science and Technology，Qingdao 266042，China)

 Abstract: The influence of ACM/EMA blending ratio on the curing characteristics，mechanical properties，heat aging stability and oil resistance of vulcanizate were investigated.The results show that with EMA/ACM blending ration decreasing，the vulcanizate of crosslinking density decreased first and then increased，the scorch time was not affected，curing rate decreased first and then increased;the vulcanizate of hardness increased gradually，tensile strength and modulus at 100% basically remain unchanged first and then increased gradually，tear strength increased gradually，volume change ratio and mass change ratio of vulcanizate increased gradually， oil resistance of vulcanizate got worse;the heat aging stability of vulcanizates did not get worse after EVM being applied in NBR；vulcanizing agent DCP and TCY reacted during curing process and reduced the curing degree of vulcanizates and generated H2S，caused bubbles in the surface of vulcanizate.

 Key words:  acrylate rubber(ACM)；ethylene methacrylate(EMA)；vulcanizing agentreact；mechanical properties；heat aging stability;oil resistance

 收稿日期： 20141108

作者简介： 张清阳（1988—），男，硕士研究生.     *通信联系人.

 文章编号：16726987（2016）01006205； DOI： 10.16351/j.16726987.2016.01.013