Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells

Serban, Daniiel

DANIIEL SERBAN

Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells

Abstract:
News on Green Energy and Green Hydrogen is spread on popular and academic media. When energy is obtained from sunlight, wind or water, we call it Green Energy. When hydrogen is obtained from electrolysis with Green Energy, we call it Green Hydrogen. Hydrogen Fuel Cells are electrochemical devices that convert hydrogen and oxygen's chemical energy into electricity and heat energy with high efficiency and contribute to the decarbonisation of the power supply. Bipolar plates, essential components of the fuel cells, made in polymer-carbon composites, are an economical alternative to the stainless steel, titan and graphite, traditional materials. Our experiments have used a polypropylene matrix filled with graphite with a total inorganic content of 87%, which contributes to high electrical and thermic conductivity but strongly influences the viscosity, flow, pressures, temperatures, and then challenging to process. Injection Moulding of thermoplastics is a technology widespread in all fields of activities and considerable potential. In this paper, the experiments' design is highlighted in choosing the factors. A debate regarding the filling, packing, holding pressures, and the last decades' approach and optimisation of injection moulding parameters with the Taguchi Method is presented. Conclusions on the injection moulding process of the bipolar plate made of a polypropylene-graphite composite, the parameters' influence with direct effects on the fuel stack's performance are presented. The combined melt and mould temperatures influence most electrical conductivity by better contacting the electrically conductive particles through the polymer's melted layer. The injection pressure influences the mass and thickness of the product and the electrical conductivity by better packing. Furthermore, we suggest an adapted formula to predict the injection pressure considering the inorganic content and the process temperatures in agreement with the experiments.

Keywords:
injection moulding; polypropylene-graphite composite; hydrogen fuel cell; Taguchi

Issue: 2021 Volume 58, Issue 3

Pages: 160-173

Publication date: 2021/10/5

https://doi.org/10.37358/MP.21.3.5514

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
SERBAN, D., , Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells, Mater. Plast., 58(3), 2021, 160-173. https://doi.org/10.37358/MP.21.3.5514

Vancouver
Serban D. Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells. Mater. Plast.[internet]. 2021 Jul;58(3):160-173. Available from: https://doi.org/10.37358/MP.21.3.5514

APA 6th edition
Serban, D., (2021). Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells. Materiale Plastice, 58(3), 160-173. https://doi.org/10.37358/MP.21.3.5514

Harvard
Serban, D., (2021). 'Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells', Materiale Plastice, 58(3), pp. 160-173. https://doi.org/10.37358/MP.21.3.5514

IEEE
D. Serban, "Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells". Materiale Plastice, vol. 58, no. 3, pp. 160-173, 2021. [online]. https://doi.org/10.37358/MP.21.3.5514

Text
Daniiel Serban,
Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells,
Materiale Plastice,
Volume 58, Issue 3,
2021,
Pages 160-173,
ISSN 2668-8220,
https://doi.org/10.37358/MP.21.3.5514.
(https://revmaterialeplastice.ro/Articles.asp?ID=5514)
Keywords: injection moulding; polypropylene-graphite composite; hydrogen fuel cell; Taguchi

RIS
TY - JOUR
T1 - Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells
A1 - Serban, Daniiel
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2021
VL - 58
IS - 3
SP - 160
EP - 173
UR - https://doi.org/10.37358/MP.21.3.5514
KW - injection moulding
KW - polypropylene-graphite composite
KW - hydrogen fuel cell
KW - Taguchi
ER -

BibTex
@article{MatPlast2021P160,
author = {Serban Daniiel},
title = {Influence of Injection Moulding Parameters on Electrical Conductivity of Polypropylene-Graphite Composite Bipolar Plates for Hydrogen Fuel Cells},
journal = {Materiale Plastice},
volume = {58},
number = {3},
pages = {160-173},
year = {2021},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.21.3.5514},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5514}
}

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