Electrical properties of carbon-based polypropylene composites for bipolar plates in polymer electrolyte membrane fuel cell (PEMFC)

Dweiri, Radwan; Sahari, Jaafar

doi:10.1016/j.jpowsour.2007.05.106

Cited by 120 publications

(64 citation statements)

References 34 publications

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“…The process of mixing the powder and testing the critical powder loading (G and binder PP) was performed with an internal mixer (Haake Remix Roller rotor type 600R with Haake Polylab TM programming). The PP melt was mixed in a chamber at a volume of 50 cm 3 and filler composition of 60 wt. % to 80 wt.…”

Section: Methodsmentioning

confidence: 99%

Critical Powder Loading and Rheological Properties of Polypropylene/Graphite Composite Feedstock for Bipolar Plate Application

Iswandi

Sahari

Sulong³

et al. 2016

MJAS

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Bipolar plate is one of the key parts in the fuel cell technology with the advantages of a higher electrical conductivity and mechanical properties are high. Injection molding is one of the manufacturing method that being used in the manufacture of bipolar plates. The critical powder loading and rheological properties of the feedstock are an important factor in the process of injection molding in the manufacturing process of bipolar plate. The critical powder loading feedstocks with a mixture of polypropylene and graphite have been conducted with the torque method test. The appropriate critical powder loading the using a graphite filler material was produced with the composition of 75 % the weight of an optimum load and 25 % weight of polypropylene. The rheological studies have also been carried out using capillary test for determining critical loading powder by increasing the viscosity of the feedstock. The test results showed that the rheological properties of the feedstock with optimum powder loading to exhibit pseudoplastic properties are suitable for injection molding process with the n less than one.Keywords: injection molding, polymer composite, bipolar plate, fuel cell Abstrak Plat dwikutub adalah salah satu bahagian utama pada teknologi sel bahanapi dengan kelebihan sifat kekonduksian elektrik dan mekanik yang tinggi. Pengacuan suntikan adalah salah satu kaedah pembuatan yang digunakan dalam pembuatan plat dwikutub. Pembebanan serbuk genting dan sifat reologi bahan suapan adalah faktor penting dalam proses pengacuan suntikan semasa proses pembuatan plat dwikutub. Pembebanan serbuk genting bahan suapan dengan campuran polipropilina dan grafit telah pun dijalankan dengan kaedah ujian nilai tork. Pembebanan serbuk genting yang sesuai menggunakan bahan suapan grafit telah dihasilkan dengan komposisi 75 % berat yang merupakan beban optimum dan 25 % berat polipropilena. Kajian reologi juga telah dijalankan menggunakan ujian rerambut bagi menentukan beban serbuk genting dengan peningkatan nilai kelikatan bahan suapan. Keputusan ujian sifat reologi didapati bahawa bahan suapan dengan beban serbuk optimal mempamerkan sifat pseudoplastik yang sesuai bagi proses pengacuanan suntikan dengan nilai n kurang daripada 1.Kata kunci: pengacuan suntikan, komposit polimer, plat dwikutub, sel bahanapi ISSN -2506 Iswandi et al: CRITICAL POWDER LOADING AND RHEOLOGICAL PROPERTIES OF POLYPROPYLENE/GRAPHITE COMPOSITE FEEDSTOCK FOR BIPOLAR PLATE APPLICATION 688Introduction Conductive polymer composite (CPC) materials generally comprise a mixture of polymers and conductive fillers, such as carbon-based and metallic fillers. Conductive materials contribute to the improvement of electrical and mechanical properties (e.g., critical load) of a material, particularly for carbon-based materials, such as graphite (G), carbon black (CB), carbon nanotubes, and carbon fiber (CF) [1 -3]. One of the applications of CPC is the bipolar plate, which requires high electrical conductivity for electron mobility. The properties of CPC materi...

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Section: Methodsmentioning

confidence: 99%

Critical Powder Loading and Rheological Properties of Polypropylene/Graphite Composite Feedstock for Bipolar Plate Application

Iswandi

Sahari

Sulong³

et al. 2016

MJAS

Self Cite

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“…Tahap keberaliran elektrik arah satah (in-plane) bagi komposit polimer pengalir pada arah selari dengan arah penyemperitan diukur menggunakan alat Jandel pelbagai ketinggian proba empat takat dan nilai bacaan diambil menggunakan RM3 Test Unit (Dweiri & Sahari 2007;Suherman et al 2013a;Suherman et al 2013b;Zakaria et al 2015).…”

Section: Pencirian Komposit Polimer Pengalirunclassified

Pengoptimuman Proses Penyemperitan Gentian Karbon Terkisar dan Polipropilena bagi Komposit Polimer Pengalir

Radzuan

Sulong²,

Somalu³

2016

JSM

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The extrusion process is one of the pre-mixing processes that aid in improving the filler dispersion in conductive polymer composite (CPC). Electrical conductivity level still needs much improvement in mixing process through mechanical mixer. This study was conducted to optimise the extrusion process parameters (temperature and rotational speed) of milled carbon fibre (MCF) and polypropylene (PP) using experimental design (Taguchi method

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“…The possibility of using conductive polymers to produce bipolar plates is an interesting notion for fuel cell development. For example, an exploration was made of the electrical properties of polypropylene/conductive filler (i.e., graphite, carbon black, and polyaniline) composites as potential replacements for the traditional graphite bipolar plates [47] . Two methods were mainly adopted in this work for the preparation of composites: melt compounding and solution blending.…”

Section: Electrically Conductive Carbonaceous Fillersmentioning

confidence: 99%

A Review of Thermoplastic Composites for Bipolar Plate Materials in PEM Fuel Cells

Yeetsorn¹,

Fowler²,

Tzoganakis³

2011

Nanocomposites With Unique Properties and Applications in Medicine and Industry

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Electrical properties of carbon-based polypropylene composites for bipolar plates in polymer electrolyte membrane fuel cell (PEMFC)

Cited by 120 publications

References 34 publications

Critical Powder Loading and Rheological Properties of Polypropylene/Graphite Composite Feedstock for Bipolar Plate Application

Critical Powder Loading and Rheological Properties of Polypropylene/Graphite Composite Feedstock for Bipolar Plate Application

Pengoptimuman Proses Penyemperitan Gentian Karbon Terkisar dan Polipropilena bagi Komposit Polimer Pengalir

A Review of Thermoplastic Composites for Bipolar Plate Materials in PEM Fuel Cells

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