Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate

Materials used to fabricate the bipolar plates for Polymer Electrolyte Membrane Fuel Cell (PEMFC) need to have a good set of criteria such as light, strong, low-cost, easily fabricated, mechanically stable, and have low surface contact resistance. Additionally, PEMFC‟s performance is much influenced...

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Main Author:	Md Yusuf, Muhammad Yusri
Format:	Thesis
Language:	English English
Published:	2018
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/23483/1/Investigation%20On%20The%20Effect%20Of%20Multi%20Filler%20Loading%20In%20Graphite-Polypropylene%20Composite%20As%20Bipolar%20Plate%20-%20Muhammad%20Yusri%20Md%20Yusuf%20-%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/23483/2/Investigation%20on%20the%20effect%20of%20multi%20filler%20loading%20in%20graphite-polypropylene%20composite%20as%20bipolar%20plate.pdf
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id	my-utem-ep.23483
record_format	uketd_dc
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Selamat, Mohd Zulkefli
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Md Yusuf, Muhammad Yusri Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
description	Materials used to fabricate the bipolar plates for Polymer Electrolyte Membrane Fuel Cell (PEMFC) need to have a good set of criteria such as light, strong, low-cost, easily fabricated, mechanically stable, and have low surface contact resistance. Additionally, PEMFC‟s performance is much influenced by the materials used, type of flow channel design and shape to be fabricated on the bipolar plate surface. In this study, the fabrication of flow channel through hot compression molding method is developed. All materials used were in powder form, which are Graphite (G), Carbon black (CB) and Ferum (Fe) as fillers and the Polypropylene (PP) that acts as binder. The ratio of fillers (G/CB/Fe) and binder (PP) was fixed at 80:20. The fillers ratio was fixed in the range of (25 up to 65 wt%) G, (10 up to 30 wt%) CB and (5 up to 25 wt%) Fe and all fillers were mixed by using the ball mill machine. The second stage of mixing process is between the mixer of fillers and binder, which was mixed by using internal mixer machine. Subsequently, the compaction process through hot compression molding is done to produce G/CB/Fe/PP composite. Then, the inplane electrical conductivity and mechanical properties such as flexure strength, bulk density and shore hardness is measure. Based on electrical conductivity, flexure strength, bulk density and shore hardness, sample with 15 wt% of Fe, has shown as the best result that is 137.39 S/cm3, 34.04 MPa, 1.582 g/cm3, 53.14 respectively. During hot compression molding process, at the same time the flow channel of serpentine type, cooling channel and the shapes of U or V shapes is pressed on the surface of the sample of bipolar plate. Thus, flow channel was investigated for accuracy of surface condition of flow channel dimensions (used coordinate measurement machine) and subsequently, compared with the actual drawings and it‟s process ability. Meanwhile based on the analysis of flow channel dimensions (width, depth, rib, angle draft), the V shape is shown to give a smooth surface, with the dimensions difference between samples and drawing of about 0.118 up to 0.27%. While for the process ability, the V shape is much easier to release from the mold. As a summary, this study revealed that the flow channel dimensions (width, depth, rib, angle draft) and coling channel with V shape can be fabricated through hot compression molding method with high accuracy.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Md Yusuf, Muhammad Yusri
author_facet	Md Yusuf, Muhammad Yusri
author_sort	Md Yusuf, Muhammad Yusri
title	Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
title_short	Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
title_full	Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
title_fullStr	Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
title_full_unstemmed	Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
title_sort	investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Mechanical Engineering
publishDate	2018
url	http://eprints.utem.edu.my/id/eprint/23483/1/Investigation%20On%20The%20Effect%20Of%20Multi%20Filler%20Loading%20In%20Graphite-Polypropylene%20Composite%20As%20Bipolar%20Plate%20-%20Muhammad%20Yusri%20Md%20Yusuf%20-%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/23483/2/Investigation%20on%20the%20effect%20of%20multi%20filler%20loading%20in%20graphite-polypropylene%20composite%20as%20bipolar%20plate.pdf
_version_	1776103120556785664
spelling	my-utem-ep.234832022-10-18T12:43:48Z Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate 2018 Md Yusuf, Muhammad Yusri T Technology (General) TA Engineering (General). Civil engineering (General) Materials used to fabricate the bipolar plates for Polymer Electrolyte Membrane Fuel Cell (PEMFC) need to have a good set of criteria such as light, strong, low-cost, easily fabricated, mechanically stable, and have low surface contact resistance. Additionally, PEMFC‟s performance is much influenced by the materials used, type of flow channel design and shape to be fabricated on the bipolar plate surface. In this study, the fabrication of flow channel through hot compression molding method is developed. All materials used were in powder form, which are Graphite (G), Carbon black (CB) and Ferum (Fe) as fillers and the Polypropylene (PP) that acts as binder. The ratio of fillers (G/CB/Fe) and binder (PP) was fixed at 80:20. The fillers ratio was fixed in the range of (25 up to 65 wt%) G, (10 up to 30 wt%) CB and (5 up to 25 wt%) Fe and all fillers were mixed by using the ball mill machine. The second stage of mixing process is between the mixer of fillers and binder, which was mixed by using internal mixer machine. Subsequently, the compaction process through hot compression molding is done to produce G/CB/Fe/PP composite. Then, the inplane electrical conductivity and mechanical properties such as flexure strength, bulk density and shore hardness is measure. Based on electrical conductivity, flexure strength, bulk density and shore hardness, sample with 15 wt% of Fe, has shown as the best result that is 137.39 S/cm3, 34.04 MPa, 1.582 g/cm3, 53.14 respectively. During hot compression molding process, at the same time the flow channel of serpentine type, cooling channel and the shapes of U or V shapes is pressed on the surface of the sample of bipolar plate. Thus, flow channel was investigated for accuracy of surface condition of flow channel dimensions (used coordinate measurement machine) and subsequently, compared with the actual drawings and it‟s process ability. Meanwhile based on the analysis of flow channel dimensions (width, depth, rib, angle draft), the V shape is shown to give a smooth surface, with the dimensions difference between samples and drawing of about 0.118 up to 0.27%. While for the process ability, the V shape is much easier to release from the mold. As a summary, this study revealed that the flow channel dimensions (width, depth, rib, angle draft) and coling channel with V shape can be fabricated through hot compression molding method with high accuracy. UTeM 2018 Thesis http://eprints.utem.edu.my/id/eprint/23483/ http://eprints.utem.edu.my/id/eprint/23483/1/Investigation%20On%20The%20Effect%20Of%20Multi%20Filler%20Loading%20In%20Graphite-Polypropylene%20Composite%20As%20Bipolar%20Plate%20-%20Muhammad%20Yusri%20Md%20Yusuf%20-%2024%20Pages.pdf text en public http://eprints.utem.edu.my/id/eprint/23483/2/Investigation%20on%20the%20effect%20of%20multi%20filler%20loading%20in%20graphite-polypropylene%20composite%20as%20bipolar%20plate.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=113261 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Mechanical Engineering Selamat, Mohd Zulkefli 1. A. Heinzel, Mahlendorf, F., and C. J., 2009. Bipolar Plates. Elsevier Science, 810–816. 2. Adloo, A., Sadeghi, M., Masoomi, M., & Pazhooh, H. N. 2016. High performance polymeric bipolar plate based on polypropylene/graphite/graphene/nano-carbon black composites for PEM fuel cells. Renewable Energy, 99, 867–874. 3. Ahmed, D. H., Sung, H. J., Bao, N., & Zhou, Y. 2009. Influence of geometric parameters of the flow fields on the performance of a PEM fuel cell. A review. International Journal of Hydrogen Energy, 36(16), 15256–15287. 4. Aiyejina, A., & Sastry, M. K. S. 2012. PEMFC Flow Channel Geometry Optimization: A Review. Journal of Fuel Cell Science and Technology, 9(1), 11011. 5. Antunes, R. A., de Oliveira, M. C. L., Ett, G., & Ett, V. 2011. Carbon materials in composite bipolar plates for polymer electrolyte membrane fuel cells: A review of the main challenges to improve electrical performance. Journal of Power Sources, 196(6), 2945–2961. 6. Arvay, A., Yli-Rantala, E., Liu, C. H., Peng, X. H., Koski, P., Cindrella, L., Kannan, A. M. 2012. Characterization techniques for gas diffusion layers for proton exchange membrane fuel cells - A review. Journal of Power Sources, 213, 317–337. 7. Arvay, A., French, J., Wang, J.-C., Peng, X.-H., & Kannan, a. M. 2013. 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Investigation on the effect of multi filler loading in graphite-polypropylene composite as bipolar plate

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