亚磷酸酯在聚丙烯中的热氧稳定作用  

THE THERMOOXIDATIVE STABILIZATION OF PHOSPHITE FOR PP

作　　者：陈宗藩[1] 朱坤[1] 

机构地区：[1]化工部合成材料研究院老化研究所,广州510665

出　　处：《现代塑料加工应用》1995年第6期24-27,共4页Modern Plastics Processing and Applications

摘　　要：通过聚丙烯树脂加工稳定性及聚丙烯薄片烘箱老化试验,比较了烷基亚磷酸酯 WESTON 619与芳基亚磷酸酯 IRGATOS 168对 PP 热氧稳定作用的影响。结果表明:在与酚类抗氧剂1010并用时,WESTON 619对 PP 的长期热氧稳定性有明显的协同效应;而 IRGATOS 168则可有效地抑制 PP 的热氧降解。By tests of the processing stability of PP and the oven ageing of PP sliver sheet,the thermooxidative stabilizations of alkylphosphite WESTON 619 and aryl-phosphite sliver sheet IRGATOS 168 for PP were compared.The results showed that WESTON 619 combining phenol type antioxidant 1010 had obvious synergistic effect on PP long-term thermooxidative stability,and IRGATOS 168 could restrain effectively thermooxidative degradation of PP.

关 键 词：亚磷酸酯 抗氧剂 聚丙烯 热稳定性 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]