摘要
采用自制的紫外光辐照装置，对厚度为０．１５ｍｍ的ＰＶＣ［交联剂为三甲基丙烯酸三羟甲基丙烷酯（ＴＭＰＴＭＡ），光敏剂为二苯甲酮（ＢＰ）］膜，在Ｎ２气氛中进行辐射交联，其交联反应近似为一级反应。较佳交联条件为：ＰＶＣ１００份，ＢＰ１份，ＴＭＰＴＭＡ１０～１５份，９０℃，８０ｓ。紫外光交联产生的降解副作用（降解交联比为１．０８）比高能辐射交联（降解交联比为１．４５）的弱。
The irradiation crosslinking was carried out on a PVC [crosslinking agent trimethylol propane trimethacrylate(TMPTMA),photosensitizer diphenyl ketone(BP)]membrance of thickness 0.15 mm.The crosslinking raction was approximately first order reaction.The optimum conditions of crosslinking were PVC 100 phr,BP 1 phr,TMPTMA 10～15 phr,90℃and 80 s.The side effect of degradation by the ultraviolet irradiation crosslinking was weaker than that by the high energy irradiation crosslinking.
出处
《合成橡胶工业》
CAS
CSCD
1998年第1期31-34,共4页
China Synthetic Rubber Industry
关键词
聚氯乙烯
紫外光辐射交联
化学动力学
辐射聚合
PVC
trimethylol propane trimethacrylate
diphenyl ketone
ultraviolet irradiation crosslinking
chemical kinetics
