PVC/ABS合金的热稳定性能研究  

Thermal Stability of PVC/ABS Alloy

作　　者：张新华[1] 肖恩琳[1] 王成强 孔秀丽[1] 

机构地区：[1]中国石化齐鲁分公司研究院,山东淄博255400 [2]中油管道防腐工程有限责任公司,河北廊坊065001

出　　处：《现代塑料加工应用》2010年第4期9-12,共4页Modern Plastics Processing and Applications

摘　　要：研究了影响聚氯乙烯／丙烯腈-丁二烯-苯乙烯共聚物（PVC／ABS）合金的热稳定性的3种因素，结果表明，随着ABS树脂含量的增加，合金的热稳定时间急剧缩短，ABS质量分数在20％～80％时，动态热稳定时间变化不大；随着有机锡热稳定剂用量的增加，合金的热稳定时间逐渐延长。通过对正交试验的极差分析，结果表明，有机锡热稳定剂对热稳定时间的影响最大，其次为硬脂酸钙，辅助稳定剂影响最小；随着注塑时间的延长，合金的白度变化不大，但黄色指数有逐渐增大的趋势。Three kinds of factors of affecting thermal stability of PVC/ABS alloy were studied. The results indicate that thermal stable time of alloy is cuted down rapidly with the increase of ABS content. When ABS content is 20%-80% ,dynamic thermal stable time does not change signficantly. With the increase of organo-tin heat stabilizers content, thermal stable time of alloy increases gradually. Orthogonal range analysis showes that the most influential factor of affecting thermal stable time is organo-tin heat stabilizers, the next is CaSt, the last is auxiliary stabilizer . With the increase of injection time, the whiteness of alloys is unchangeable signficantly,but the yellow index increases gradually.

关 键 词：聚氯乙烯 丙烯腈-丁二烯-苯乙烯共聚物 合金 热稳定性 热稳定时间 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]