有机锑和添加剂对聚氯乙烯热稳定性能的协同效应  

SYNERGISTIC EFFECTS OF ORGANOANTIMONY AND ADDITIVES ON THE PROPERTIES OF RIGID PVC

作　　者：徐社阳[1] 曹德榕[1] 陈鸣才[1] 

机构地区：[1]中国科学院广州化学研究所,中国科学院研究生院北京100039

出　　处：《高分子材料科学与工程》2006年第3期155-158,共4页Polymer Materials Science & Engineering

摘　　要：采用HAAKE流变仪研究了在添加自制有机锑热稳定剂及各种助剂后的硬质聚氯乙烯(PVC)的热稳定性能,同时探讨了它们的防初期着色性能。结果表明:随着有机锑稳定剂用量的增加,PVC样品的动态稳定性能和防初期着色都变好;添加对叔丁基邻苯二酚(TBC)时有较好的防初期着色性能和较好的动态稳定性能;硬脂酸钙和有机锑热稳定剂并用有很好的协同效用,但是随着用量增大,PVC的初期颜色会逐渐变深;巯基乙酸异辛酯对初期颜色和长期稳定性能的影响有一个最佳的添加量。The synergistic effects of organoantimony and other additives on the properties of rigid Poly（vinyl chloride） （PVC） were studied by Haake polydrive. The early color of PVC was also investigated. The results show that PVC has light early color and long dynamic stability when the dosage of organoantimony increased or when t-butyl catechol（TBC） is used together. Calcium Stearate（CaSt2） forms synergistically function in the combination with the organoantimony for long heat stabilization of PVC, however, it causes bad effects on early color when calcium stearate is used in big amount. The synergistic effect of isooctylthioglycolate with the organoantimony on the early color and dynamic stability of PVC depends on its dosage.

关 键 词：有机锑 协同效用 聚氯乙烯 热稳定性 添加剂 

分 类 号：O631.31[理学—高分子化学]