聚氯乙烯热稳定剂甘油基钙/锌的制备及性能研究  

Preparation and Property Evaluation of Calcium/Zinc Glycerolate as Thermal Stabilizer for PVC

作　　者：宋银银 蒋平平 董玉明 阎璀榕 郭朝彬 刘朋 

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]江苏武进佳华化工有限公司,江苏常州213000

出　　处：《塑料科技》2011年第11期103-107,共5页Plastics Science and Technology

基　　金：江苏省产学研联合创新资金(BY2010118);江苏省高校科研成果产业化推进工程项目(JH10-31)

摘　　要：用氧化钙、氧化锌与甘油反应分别制备了甘油钙、甘油锌。通过刚果红法和电导法考察了甘油钙/锌在聚氯乙(烯PVC)制品中的热稳定性能,并研究了甘油钙和甘油锌之间的协同效应。结果表明:甘油钙与甘油锌的质量比为4/1时,PVC的热稳定时间可达90 min,远远超出传统的硬脂酸钙/锌的17.8 min,具有优良的长期热稳定性。热分解表观动力学数据表明甘,油钙/锌的加入使PVC的稳定性增强。Calcium oxide and zinc oxide were reacted with glycerine respectively to prepare calcium glycerolate and zinc glycerolate.The thermal stability of calcium/zinc glycerolate for poly（vinyl chloride）（PVC） was examined by Congo red test and conductivity test.The synergistic effect between calcium glycerolate and zinc glycerolate was also studied.The results show that when the mass ratio of calcium glycerolate/zinc glycerolate is 4/1,the thermal stabilization time is up to 90 min for PVC,which is much higher than that of traditional calcium/zinc stearate（17.8 min）.The data of apparent kinetics of thermal degradation indicate that the addition of calcium/zinc glycerolate improves the thermal stability of PVC.

关 键 词：聚氯乙烯 甘油钙 甘油锌 热稳定剂 热分解 动力学 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]