氯化聚乙烯橡胶/废旧三元乙丙橡胶胶粉共混发泡材料的研究  

Foaming of Chlorinated Polyethylene Rubber/Waste EPDM Powder Blend

作　　者：徐辉[1] 李文博[1] 

机构地区：[1]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》2016年第11期650-654,共5页China Rubber Industry

摘　　要：研究氯化聚乙烯橡胶(CM)/废旧三元乙丙橡胶(EPDM)胶粉共混发泡材料的性能,并采用活化剂420等对废旧EPDM胶粉进行活化改性,考察废旧EPDM胶粉改性对共混发泡材料的影响。结果表明:随着废旧EPDM胶粉用量的增大,共混发泡材料的门尼粘度增大,邵尔C型硬度减小,发泡倍率先增大后减小,发泡收缩率减小;废旧EPDM胶粉改性后,共混发泡材料的门尼粘度变化不大,M_H-M_L值增大,发泡倍率略有减小,但物理性能和发泡收缩率改善,且泡孔结构更密实、更完整。The properties of foam of chlorinated polyethylene rubber（CM）/waste EPDM powder blend were studied,the waste EPDM powder was modified by activator 420,and the influence of modification of waste EPDM powder on the foam properties was investigated. The results showed that,with the addition level of waste EPDM powder increasing,the Mooney viscosity of the blend increased,Shore C hardness decreased,the expansion ratio firstly increased and then decreased,and the foam shrinkage rate decreased.When the waste EPDM powder was modified,the Mooney viscosity of the blend changed very little,MHML value increased,physical properties and foaming shrinkage were improved,although the foaming ratio slightly decreased,and the cell structure was more compact and complete.

关 键 词：氯化聚乙烯橡胶 废旧EPDM胶粉 改性 共混发泡 物理性能 

分 类 号：TQ330.1[化学工程—橡胶工业]