Effect of carbon nanotube on the properties of graphite-carbon black-epoxy composite for bipolar plate

Mohd Basahahruddin, Azny (2017) Effect of carbon nanotube on the properties of graphite-carbon black-epoxy composite for bipolar plate. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The conductive polymer composite(CPCs) bipolar plate had been the target to replace the pure-graphite. This is due to the low manufacturing cost and light of total mass of bipolar plate in PEMFCs. The aim of this research is to study the effect of CNTs on the properties of Gr/CB/EP composite. The second aim of this research is to determine the critical loading of CNTs in Gr/CB/EP composite. The ratio of fillers (Gr/CNT) and binder (EP) is fixed at 75:25. The amount of CB also will be fixed 25% and by adding the small amount of CNTs in to Gr/CNT/EP composite thus will gives synergy effects on electrical conductivity and mechanical properties. The small amount of CNTs which is 0, 5, 10 and 15 wt.% (from the total weight of fillers 75%) will be added into Gr/CB/EP composite. Before the fabrication process using the hot press, the filler of Gr/CB/CNT will be mixed used ball mill. In order the determines the effect of CNTs content in Gr/CNT/EP composite, the test such as electrical conductivity, flexure test, density test hardness and microstructure analysis has been carried out. The best weight of CNTs contents are at 10wt% in Gr/CB/EP.

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