氯磺化聚乙烯橡胶对丁腈橡胶与三元乙丙橡胶的相容改性作用  

Modification of Compatibility between NBR and EPDM by CSM

作　　者：刘金朋 吴天昊 宋传云 张卓 肖建斌[2] LIU Jinpeng;WU Tianhao;SONG Chuanyun;ZHANG Zhuo;XIAO Jianbin(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd,Qingdao 266000,China;Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266000 [2]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《橡胶工业》2023年第3期189-194,共6页China Rubber Industry

基　　金：国家重大技术装备攻关工程项目《系列化中国标准地铁列车研制及试验》。

摘　　要：探讨氯磺化聚乙烯橡胶(CSM)、氯化聚乙烯橡胶和乙烯-乙酸乙烯酯共聚物作为相容剂对丁腈橡胶(NBR)/三元乙丙橡胶(EPDM)并用胶的相容改性作用,并研究硫化体系对NBR/EPDM/CSM并用胶性能的影响。结果表明:CSM作为相容剂能改善NBR与EPDM的相容性,提高NBR/EPDM并用胶的物理性能;随着促进剂DPTT用量的增大,NBR/EPDM/CSM并用胶的物理性能提高;硫黄硫化体系与过氧化物硫化体系并用的NBR/EPDM/CSM并用胶的物理性能最佳;过氧化物硫化体系单用的NBR/EPDM/CSM并用胶的耐热老化性能最佳。In this study,chlorosulfonated polyethylene rubber(CSM),chlorinated polyethylene rubber,and ethylene-vinyl acetate copolymer were applied to improve the compatibility between nitrile rubber(NBR)and ethylene-propylene-diene rubber(EPDM).The modification effects were investigated and the effects of curing systems on the properties of the NBR/EPDM/CSM blends were studied.The results showed that the addition of CSM could improve the compatibility between NBR and EPDM and improve the physical properties of the NBR/EPDM blends.With the increase of accelerator DPTT dosage,the physical properties of NBR/EPDM/CSM blends were improved.The physical properties of the NBR/EPDM/CSM blends with sulfur and peroxide combined curing system were the best,and the heat aging resistance of the NBR/EPDM/CSM blends only with peroxide curing system was the best.

关 键 词：氯磺化聚乙烯橡胶 丁腈橡胶 三元乙丙橡胶 相容性 物理性能 动态力学性能 耐热老化性能 

分 类 号：TQ333.4[化学工程—橡胶工业] TQ333.7TQ333.92