环氧树脂/镀银纳米石墨微片导热复合材料的制备与性能  

Preparation and Properties of Epoxy/Silver Plating Graphite Nanosheet Thermally Conductive Composites

作　　者：吴东[1] 齐暑华[1] 谢璠[1] 邱华[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129

出　　处：《中国塑料》2014年第2期31-34,共4页China Plastics

摘　　要：以膨胀石墨为原料,采用超声分散法和化学镀法制得镀银纳米石墨微片,然后将其填充在环氧树脂基体中制备环氧树脂/镀银纳米石墨微片复合材料。结果表明,银粒子均匀镀覆在纳米石墨微片上,银层厚度为100nm,有利于在环氧树脂基体中形成导热通路;与环氧树脂相比,环氧树脂/镀银纳米石墨微片复合材料的力学性能和热导率能都得到提高;当镀银纳米石墨微片含量为3%时,复合材料的热导率为1.827W/(m·K),比纯环氧树脂热导率提高了近5倍。Silver coated graphite nanosheet （Ag-NanoG） was prepared by treating expanded graphite with the method of ultrasonic dispersion and chemical plating, and then it was filled into epoxy （EP） matrix to obtain EP/Ag-NanoG composites. It showed that the nanosheet was plated with a uniform and compact layer of silver particles, about 100 nm in thickness. The mechanical and thermal conductivity propert fraction of Ag-NanoG was 1. 827 W. （m· K）^-1, which les 3% of EP/Ag-NanoG composites were improved. When the mass , the thermal conductivity of EP/Ag-NanoG composites was increased almost 5 times based on neat epoxy

关 键 词：镀银纳米石墨微片 环氧树脂 热导率 复合材料 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]