The Effect Of Carbon Nanotube On The Properties Of Graphite, Carbon Black And Epoxy Composite For The Bipolar Plate

Teh, Chee Khoon (2015) The Effect Of Carbon Nanotube On The Properties Of Graphite, Carbon Black And Epoxy Composite For The Bipolar Plate. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) The Effect Of Carbon Nanotube On The Properties Of Graphite, Carbon Black And Epoxy Composite For The Bipolar Plate 24 Pages.pdf - Submitted Version Download (718kB)

Abstract

Nowadays, conductive polymer composite (CPCs) bipolar plate had been the target to replace the pure-graphite or metal based bipolar plate. This is due to the low manufacturing cost and light of total mass of bipolar plate in Polymer Electrolyte Membrane Fuel Cells (PEMFCs). PEMFCs are able to efficiently generate high power densities, thereby making the technology potentially attractive for certain automobile industry and portable applications. Meanwhile, single filler in polymer-graphite composites have shown low electrical conductivity and mechanical properties. Therefore, the aim of this research is to study the effect of Carbon Nanotube (CNTs) as third filler on the electrical and mechanical properties of Graphite (Gr), Carbon Black (CB) and Epoxy (EP) composite. The second aim of this research is to determine the critical loading of CNTs in Gr, CB and EP composite. The ratio of fillers (Gr/CB /CNTs) and binder (EP) is fixed at 80: 20. The adding of small amount of CNTs into Gr/CB/EP composite thus will gives synergy effects in electrical conductivity and mechanical properties. The small amount of CNTs which is 0, 5, 10, 15 wt% (from the total weight of fillers 80%) will be added into Gr/CB/EP composite. Before the fabrication process using the hot press, the mixture of Gr, CB and CNTs will be mixed used ball mill. Therefore, it will mix with. EP by using the blender. In order to determine the effect of CNTs content in Gr/CB/EP composite, the tests such as electrical conductivity, flexure strength test, bulk density test and hardness had been carried out. The used of CNTs as third filler of I 0 wt% in Gr/CB/EP composites shown the best result in the in-plane electrical conductivity, flexural strength, density and hardness being 616.22 S/cm, 12.80 MPa, 1.200 g/cm3 and 50.3 respectively.

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