A Computer Simulation Study on Electrical Resistance in Graphite/Resin Composite
A Computer Simulation Study on Electrical Resistance in Graphite/Resin Composite
复制标题
石墨/树脂复合材料电阻的计算机模拟研究
作者：
T. Kitaoka;M. Adachi;Naoyuki Kitamura;R. Fujii
为了提高石墨鳞片复合材料的导电性，采用计算机模拟的方法研究了含高导电石墨鳞片复合材料的电阻。模拟结果表明，当石墨在树脂中的体积分数达到一定值时，石墨与树脂混合物的电阻显著降低，与实验结果一致。分散石墨片长径比的增加降低了过渡阈值，提高了渗滤态的电导率。因此，可以推断，通过在树脂中引入少量具有大长径比的石墨来提高导电性。
Electrical resistance of a composite material containing highly conductive graphite flakes is investigated using a computer simulation method in order to improve the electric conductivity. This simulation shows that resistance of mixture composed of graphite flakes and resin decreases markedly at a certain volume fraction of graphite in resin in same manner as experimental results. Increase of aspect ratio of dispersed graphite flakes decreases a transition threshold and increases the electric conductivity at percolation state. Therefore it is deduced that the electrical conductivity is increased by the introduction of small amount of graphite having a large aspect ratio into resin.