TAIC对动态硫化EPDM/PP热塑性弹性体性能的影响  

Effect of TAIC on the Properties of Dynamically Vulcanized EPDM/PP Thermoplastic Elastomer

作　　者：蒋团辉[1] 曾祥补 朱建华[1] 张翔[1] 石敏[1] JIANG Tuan-hui;ZENG Xiang-bu;ZHU Jian-hua;ZHANG Xiang;SHI Min(National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang 550022,China)

机构地区：[1]国家复合改性聚合物材料工程技术研究中心

出　　处：《塑料工业》2019年第7期117-120,共4页China Plastics Industry

基　　金：贵州省科学技术基金(黔科合基础[2019]1176,黔科合基础[2016]1077,黔科合平台人才[2017]5731,黔科合平台人才[2019]5637);贵阳市白云区科技计划项目(白科合同[2018]8号,白科合同[2018]9号)

摘　　要：研究了交联助剂三烯丙基异氰脲酸酯(TAIC)对以三元乙丙橡胶(EPDM)和聚丙烯(PP)为基体材料的动态硫化热塑性弹性体(TPV)性能的影响。采用转矩流变仪对TPV进行硫化特性测试,运用抽提法测试TPV的凝胶含量,同时研究了TPV的耐热氧老化性能和力学性能。结果表明,随着TAIC含量的增加,TPV的凝胶含量逐渐增大,抗热氧老化性能逐渐提高,拉伸强度和断裂伸长率出现极大值。当TAIC含量为1%时,与未添加TAIC的值相比,拉伸强度和断裂伸长率分别增加11.6%和13.8%,压缩永久变形降低了8%。The influence of the triallylisocyanurate(TAIC)on the properties of dynamically vulcanized thermoplastic elastomer(TPV)with ethylene-propylene-diene monomer(EPDM)rubber/polypropylene(PP)as the matrix was studied.The vulcanizing characteristics of TPV was tested by torque rheometer,the gel content of TPV was measured by extraction method and the thermal oxidative aging resistances and the mechanical properties of TPV were also studied.The results show that with the increase of TAIC contents,the gel contents of TPV increase,the thermal oxidative aging resistances improves,and the tensile strength and elongation at break could achieve the maximum value.Comparing with the composites without TAIC,when the content of TAIC is 1%,the tensile strength and elongation at break could increase 11.6%and 13.8%,respectively.And the compression set could decrease 8%.

关 键 词：三烯丙基异氰脲酸酯 三元乙丙橡胶/聚丙烯 动态硫化 力学性能 

分 类 号：TQ334.2[化学工程—橡胶工业]