增塑剂对PVC溶胶发泡性能的影响  

Effect of Plasticizer on Foaming Properties of Poly(vinyl chloride)Plastisols

作　　者：吉玉碧 蒋杰[1] 武涛 王文红 付腾宏 谭红 JI Yubi;JIANG Jie;WU Tao;WANG Wenhong;FU Tenghong;TAN Hong(Guizhou Institute of Technology,Guiyang,Guizhou 550003,China;National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang,Guizhou 550014,China;College of Science,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]贵州理工学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]北京化工大学理学院,北京100029

出　　处：《塑料》2023年第5期46-50,共5页Plastics

基　　金：贵州理工学院高层次人才启动项目(XJGC20190953);贵州省科技计划(黔教合支撑[2023]一般295);2021年大学生创新创业训练计划(S202114440074,X202114440258)。

摘　　要：通过研究6种不同增塑剂制备的聚氯乙烯(PVC)溶胶的发泡性能,分析发泡性能存在差异的原因。结果表明,6种增塑体系中,苯二甲酸酯类增塑剂P4制备的PVC发泡溶胶发泡质量最佳,其次是柠檬酸酯类的P2,己二酸二异壬酯P5的发泡性能较差。T_(f)-T_(ηmax)、T_(f5%)-T_(ηmax)参数对发泡质量的影响显著,T_(f)-T_(ηmax)、T_(f5%)-T_(ηmax)越大,发泡效果越好。增塑剂相对分子质量越小,与糊树脂的相容性越好,均可以使T_(ηmax)减小,T_(f)-T_(ηmax)、T_(f5%)-T_(ηmax)增大,有利于得到综合性能较好的发泡材料。The foaming properties of polyvinyl chloride(PVC)plastisol prepared by six different plasticizers were studied,and the underlying mechanisms that result in differences in the foaming properties were discussed as well.The results indicate that the foaming quality of PVC foaming plastisol prepared by phthalate plasticizer P4 was the best,followed by citrate plasticizer P2,and diisopropyl adipate P5 was the worst.The parameters of the T_(f)-T_(ηmax)and T_(f5%)-T_(ηmax)had a significant effect on the foaming quality,the greater the value of these parameters,the better the foaming effect.The molecular weight of plasticizer and the compatibility with paste resin directly affect the rheological parameters,namely T_(ηmax),of PVC plastisol,and subsequently affect the magnitude of T_(f)-T_(ηmax)and T_(f5%)-T_(ηmax),which in turn affect the quality of the foam.

关 键 词：聚氯乙烯 溶胶 增塑剂 发泡 流变 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]