助交联剂在聚醚混炼型聚氨酯中的应用研究  

Application of Crosslinking Co-agents to Polyether Millable Polyurethane

作　　者：刘建文 陈朝晖 肖风亮 

机构地区：[1]华南理工大学聚合物成型加工教育部重点实验室,广州510640 [2]广州机械科学研究院有限公司,广州510700

出　　处：《特种橡胶制品》2015年第2期1-5,15,共6页Special Purpose Rubber Products

基　　金：国家重大科技成果转化项目"大型风力发电装备关键密封件产业化"(13110022)的资助

摘　　要：研究了过氧化物类助交联剂HVA-2、TMPTMA、SR517、SR522D和R153D对聚醚混炼型聚氨酯(MPU)硫化特性、交联密度、力学性能、耐热空气老化性、耐臭氧性、耐油性以及玻璃化转变温度等的影响。结果表明,选用助交联剂R153D且其用量为3.5份时,制备的MPU橡胶材料综合力学性能最佳。Effects of the co-agents, HVA-2, TMPTMA, SR517, SR522D and R153D,on curing characteristics, crosslinking density, mechanical properties, hot air aging resistance, ozone aging resistance, oil aging resistance as well as glass-transition temperature of millable polyether polyurethane were investigated. The results indicated that the comprehensive mechanical property of the composite prepared with 3.5 phr R153D was the best.

关 键 词：聚醚混炼型聚氨酯 助交联剂 压缩永久变形 玻璃化转变温度 

分 类 号：TQ334.1[化学工程—橡胶工业]