中国塑料 ›› 2014, Vol. 28 ›› Issue (02): 31-34.DOI: 10.19491/j.issn.1001-9278.2014.02.005

• 材料与性能 • 上一篇    下一篇

环氧树脂/镀银纳米石墨微片导热复合材料的制备与性能

吴东 齐暑华 谢璠 邱华   

  1. 西北工业大学理学院应用化学系 西北工业大学 西北工业大学 西北工业大学理学院应用化学系
  • 收稿日期:2013-10-16 修回日期:2013-11-14 出版日期:2014-02-26 发布日期:2014-02-26

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

  

  • Received:2013-10-16 Revised:2013-11-14 Online:2014-02-26 Published:2014-02-26

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100 nm,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1.827 W/(m·K),比纯环氧树脂热导率提高了近5倍。

关键词: 镀银纳米石墨微片, 环氧树脂, 热导率, 复合材料

Abstract: 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 properties of EP/AgNanoG composites were improved. When the mass fraction of AgNanoG was 3%, the thermal conductivity of EP/AgNanoG composites was 1.827 W·(m·K)-1, which increased almost 5 times based on neat epoxy.

Key words: silver plating graphite nanosheets, epoxy, thermal conductivity, composites