聚醚型混炼型聚氨酯与丁腈橡胶的并用研究  

Study on Blend of Millable Polyether Polyurethane and NBR

作　　者：刘建文[1,2] 陈朝晖[1,2] 肖风亮 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]华南理工大学聚合物成型加工教育部重点实验室,广东广州510640 [3]广州机械科学研究院有限公司,广东广州510700

出　　处：《橡胶工业》2016年第3期138-141,共4页China Rubber Industry

基　　金：国家重大科技成果转化项目(13110022)

摘　　要：研究聚醚型混炼型聚氨酯(MPU)/丁腈橡胶(NBR)并用比对MPU/NBR并用胶性能的影响。结果表明:随着NBR用量的增大,胶料的M_H增大,t_(90)延长,硫化速率下降;硫化胶的交联密度增大,压缩永久变形减小,热稳定性和耐低温性能提高,耐臭氧老化性能下降,耐油性能变化不大。The effect of the blending ratio of millable polyether polyurethane（MPU）and NBR on the properties of MPU/NBR blend was investigated. The results showed that,as the addition level of NBR increased,the M_H of the compound increased,t_（90） was extended,and curing rate decreased. With more NBR,the crosslinking density of the vulcanizate increased,permanent compression set decreased,thermal stability and low temperature resistance were improved,ozone aging resistance decreased,and oil resistance changed little.

关 键 词：聚醚型混炼型聚氨酯 丁腈橡胶 并用 压缩永久变形 

分 类 号：TQ333.7[化学工程—橡胶工业] TQ334.1