Modified self-consistent model for the effective electrical conductivity of polygonal graphite composites

Abstract

The micromechanics theory of polymer composite materials was used to establish the effective electrical conductivity model of graphite composites. Based on micromechanics, the self-consistent model was analyzed. The modified self-consistent model was put forward by the Eshelby tensor of polygonal inclusions and percolation theory. These applicable conditions of various models were compared. The modified self-consistent model was finally selected to predict effective electrical conductivity of graphite composites. The key exponent of system was determined according to experimental results. Results show that the modified self-consistent model can well predict the effective electrical conductivity of graphite composites. This modified model is also expected to provide useful guidelines for the design and optimization of graphite composites.