动态硫化制备聚烯烃弹性体/三元乙丙橡胶/聚丙烯热塑性硫化胶的性能  

Properties of polyolefin elastomer/ethylene-propylene-diene monomer/polypropylene thermoplastic vulcanizates

作　　者：李建芳[1] 邢祥菊[1] 张艳芬[1] 管恩政 肖建斌[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]青岛赛轮股份有限公司,山东黄岛266500

出　　处：《合成橡胶工业》2013年第4期309-312,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(51073185)

摘　　要：讨论了三元乙丙橡胶、硫化剂(TX-29)及聚丙烯用量对聚烯烃弹性体/三元乙丙橡胶/聚丙烯热塑性硫化胶硫化特性和力学性能的影响。结果表明,随着三元乙丙橡胶生胶用量的增加,热塑性硫化胶的交联程度逐渐降低,胶料的拉伸强度、撕裂强度、定伸应力、硬度和高温压缩永久变形都呈减小趋势,而扯断伸长率和扯断永久变形变大。随着硫化剂用量的增加,胶料的拉伸强度、撕裂强度和定伸应力先增大后减小,高温压缩永久变形和扯断伸长率逐渐减小。随着聚丙烯用量的增加,胶料的流动性和力学性能改善,高温压缩永久变形呈现先增大后减小的趋势。The effects of ethylene-propylene-diene monomer, crosslinking agent （TX-29） and polypro- pylene amounts on curing characteristics and me- chanical properties of polyolefin elastomer/ethylene- propylene-diene monomer/polypropylene thermoplas- tic vulcanizate were discussed. The results showed that with increasing ethylene-propylene-diene mono- mer crude rubber, the erosslinking density, tensile strength, tear strength, modulus, compression set at high temperature and hardness of the vulcanizates decreased, but elongation at break and permanent set increased. With the increase of vulcanizing agent, the tensile strength, tear strength and stress at definite elongation increased first and then de- creased, elongation at break and compression set at high temperature decreased. As the amount of poly- propylene increases, the fluidity and mechanical properties improved, but permanent compression at high temperature increased first and then decreased.

关 键 词：三元乙丙橡胶 聚烯烃弹性体 聚丙烯 共混 动态硫化 热塑性硫化胶 力学性能 

分 类 号：TQ334.2[化学工程—橡胶工业]