Influence the Fillers Orientation: A Short Review

Abstract

Bipolar plates significantly contribute in the development of the polymer electrolyte membrane (PEM) fuel cells technology due to their ability to produce high electrical conductivity based on type of materials used. Mismatching of inappropriate materials and manufacture may lead to the inferior performance of PEM fuel cells. Hence, material development was determined crucial to balance the overall performance of PEM fuels including the mechanical properties and electrical conductivity of the materials. Studies on conductive polymer composites (CPCs) offered filler orientation as an alternative method to enhance the overall performance of bipolar plate. Filler orientations permit an excellent conductivity network formation while controlling the filler alignment based on required applications. This paper reviewed various studies of filler orientations including materials used and methods of manufacture of CPC materials for the effective development of bipolar plate.

Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models

“…Miyaska, et al, [1] appear to be essentially the first to present evidence of a thermodynamic influence on the percolation threshold in electrical conductivity measurements with carbon fillers as indicated in Fig. 1 and Several review authors [2][3][4][5][6][7][8][9][10][11] have found that many models have been proposed to characterize the percolation threshold as indicated by the sharp increase in the S shaped curves described adequately with the data of Miyaska et al, [1] for several carbon filled composites as indicated in Fig. 1.…”

Highly Conductive Polymer Composite Based on Graphite-Filled Immiscible Polyolefin/Epoxy Blends

“…8 also revealed that the HDPE/EP/SG composites exhibit lower resistivity anisotropy compared to the PP/EP/SG composites at the same SG contents. This is due to the lower viscosity of HDPE compared to PP, which would promote more random orientation of the filler during melt mixing [50].…”