Nano-SiO_(2)选择性分布对CPE增韧PVC体系的影响  

Effect of Selective Distribution of nano-SiO_(2)on CPE Toughened PVC System

作　　者：毛泽鹏[1,2] 顾凌锐 薛振 汤骏航 张军 Mao Zepeng;Gu Lingrui;Xue Zhen;Tang Junhang;Zhang Jun(College of Materials Science and Engineering,Nanjing Tech University,Nanjing,Jiangsu,211816;Jiangsu Collaborative Innovation Center for AdvancedInorganic Function Composites,Nanjing,Jiangsu,211816)

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京211816 [2]江苏先进无机功能复合材料协同创新中心,江苏南京211816

出　　处：《现代塑料加工应用》2024年第3期1-4,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金青年基金(22205106);江苏省基础研究计划青年基金(BK20220362);江苏高校优势学科建设工程资助项目。

摘　　要：通过改变混合顺序,研究了纳米二氧化硅(nano-SiO_(2))选择性分布对氯化聚乙烯(CPE)增韧聚氯乙烯(PVC)体系力学性能、流变性能、耐热性能的影响。结果表明:当nano-SiO_(2)分布于CPE相时,样品的拉伸强度、弯曲强度、弯曲模量、热变形温度提升更显著,当nano-SiO_(2)分布于PVC相时,样品的缺口冲击强度提升更显著,尤其在CPE用量较低时。nano-SiO_(2)选择性分布对样品的流变性能会产生影响,但对其玻璃化转变温度影响较小。The effect of selective distribution of nano silica(nano-SiO_(2))on the mechanical properties,rheological properties and heat resistance of chlorinated polyethylene(CPE)toughened polyvinyl chloride(PVC)system was studied by changing the mixing order.The results show that when nano-SiO_(2)is distributed in the CPE phase,the tensile strength,bending strength,bending modulus and thermal deformation temperature of the samples increase more significantly.When nano-SiO_(2)is distributed in the PVC phase,the notched impact strength of the samples increases significantly,especially when the amount of CPE is lower.Selective distribution of nano-SiO_(2)has an effect on the rheological properties of the samples,but has little effect on the glass transition temperature.

关 键 词：聚氯乙烯 氯化聚乙烯 纳米二氧化硅 选择性分布 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]