炭黑包覆PS微球制备及导电隔离结构的构筑  

Preparation of Carbon Black-Coated PS Microspheres and Construction of Conductive Segregated Structures

作　　者：张雨婷 王忠培 石雨琦 汤骏航 毛泽鹏[1,2] Zhang Yuting;Wang Zhongpei;Shi Yuqi;Tang Junhang;Mao Zepeng(College of Materials Science and Engineering,Nanjing Tech University,Nanjing,Jiangsu,211816;Jiangsu Collaborative Innovation Center for Advanced Inorganic 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6期13-16,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：采用分散聚合法合成了具有核-壳结构的炭黑(CB)包覆聚苯乙烯(PS)微球(PS@CB),并对微球采用热压成型获得具有隔离结构的高导电纳米复合材料。结果表明:具有隔离结构的纳米复合材料具有极低的导电渗流阈值,质量分数为3%CB负载下体积电阻率低至1.84×10^(-2)Ω·m,比同等CB负载下的熔融共混PS/CB复合材料电阻率(2.62×10^(14)Ω·m)低16个数量级,表现出优异的导电性能。Carbon black(CB)-coated polystyrene(PS)microspheres(PS@CB)with core-shell structure were synthesized by dispersion polymerization method,and conductive nanocomposites with isolated structure were obtained by thermoforming.The results show that the nanocomposite with isolated structure has a very low electrical percolation threshold,showing a volume resistivity of 1.84×10^(-2)Ω·m with a mass fraction of 3%CB load,which is 16 orders of magnitude lower than that of the molten blended PS/CB composites(2.62×10^(14)Ω·m)with the same CB load.

关 键 词：导电复合材料 聚苯乙烯 炭黑 隔离结构 核-壳结构 

分 类 号：TQ3[化学工程]