Nano-SiO2选择性分布对CPE增韧PVC体系的影响
Effect of Selective Distribution of nano-SiO2 on CPE Toughened PVC System
毛泽鹏 1顾凌锐 2薛振 2汤骏航 1张军1
作者信息
- 1. 南京工业大学材料科学与工程学院,江苏 南京,211816;江苏先进无机功能复合材料协同创新中心,江苏 南京,211816
- 2. 南京工业大学材料科学与工程学院,江苏 南京,211816
- 折叠
摘要
通过改变混合顺序,研究了纳米二氧化硅(nano-SiO2)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-SiO2 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-SiO2 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-SiO2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.
Abstract
The effect of selective distribution of nano silica(nano-SiO2)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-SiO2 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-SiO2 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-SiO2 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Key words
polyvinyl chloride/chlorinated polyethylene/nano silica/selective distribution引用本文复制引用
基金项目
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()
出版年
2024
NETL
NSTL
万方数据