PVC/环氧树脂F51共混物性能的研究(二)  

Study on properties of PVC/epoxy resin F51 composites:part two

作　　者：钱志军 张敏[2] 洪升 徐明[2] 王彩红[2] 鲁圣军[2] 

机构地区：[1]金发科技股份有限公司,广东广州510520 [2]贵州大学材料与冶金学院,贵州贵阳550025

出　　处：《聚氯乙烯》2012年第10期16-19,26,共5页Polyvinyl Chloride

基　　金：贵阳市工业振兴科技计划项目([2012101]2-11)~~

摘　　要：以554/504为固化剂,研究了不同固化时间下,F51用量对PVC/F51共混物的微观形貌、力学性能和维卡软化温度的影响。结果表明:①少量的F51在PVC基体中分散比较均匀,F51用量较多时会出现团聚现象;②少量的F51有利于提高PVC/F51共混物的力学性能和维卡软化温度,用量以2～6份为宜;③随着固化时间的延长,PVC/F51共混物的力学性能和维卡软化温度均提高;④固化剂554可进一步提高PVC/F51共混物的拉伸强度和弯曲强度,但会降低缺口冲击强度和维卡软化温度。The influences of F51 dosages on the micromorphologies,mechanical properties and Vicat softening temperature of PVC/F51 composites cured by curing agent 554/504 for different time were studied.The resuls showed that： ① a small amount of F51 could uniformly disperse in PVC matrix,and more F51 dosages could lead to the appearance of agglomeration;② a small amount of F51 was of benefit to increasing the mechanical properties and Vicat softening temperature of PVC/F51 composites,and the suitable dosages were 2-6 phr;③ with the prolonging of curing time,the mechanical properties and Vicat softening temperature of PVC/F51 composites were all increased;④ curing agent 554 could further increase the tensile strength and bending strength of PVC/F51 composites,but could decrease its notch impact strength and Vicat softening temperature.

关 键 词：PVC 环氧树脂 固化剂 力学性能 维卡软化温度 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]