Investigation of electrical-mechanical performance of epoxy-based nanocomposites filled with hybrid electrically conductive fillers

Suherman, Hendra; Dweiri, Radwan; Mahyoedin, Yovial; Duskiardi, Duskirdi

doi:10.1088/2053-1591/ab44d6

Cited by 20 publications

(5 citation statements)

References 31 publications

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“…The agglomeration is attributed to the large number content of GNP and MWCNT. The embedded GNP and CNT agglomerates in the composites were also observed by Suherman et al [39].…”

Section: Tunnelling Conductionsupporting

confidence: 77%

WITHDRAWN: Effect of water absorption on graphene nanoplatelet and multiwalled carbon nanotubes- impregnated glass-reinforced epoxy composites

Ahmad

Ridzuan

Majid

et al. 2023

Preprint

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In this study, the effect of water uptake on graphene nanoplatelets (GNP) and multiwalled carbon nanotube (MWCNT)-impregnated glass-reinforced epoxy composites was examined. The composite was manufactured using a hand lay-up and vacuum bagging technique. The nanofiller was mixed with epoxy using a mechanical stirrer, high-shear mixer, and ultrasonic probe machine. In situ electromechanical testing was performed on the specimens. The study found that the weight content and type of nanofiller impact the composites' water uptake and mechanical properties. The water uptake of GNP–glass, MWCNT–glass, and GNP–MWCNT–glass hybrid composites decrease with the addition of different nanofiller contents. Adding a 1.5 GNP–MWCNT hybrid mixture increased the composite's tensile and flexural strengths to 269.3 and 294.4 MPa, respectively. The GNP–MWCNT–glass hybrid composite shows a positive synergy effect on the enhancement of water-ageing with self-sensing ability, while the GNP–glass, MWCNT–glass composites show a less positive effect on water ageing sensing behaviour. The nanofillers dispersion and fracture surface morphological observations were disclosed using a field emission scanning electron microscope. The results established that the GNP–MWCNT–glass hybrid exhibits good potential for in situ damage monitoring of composites and can support their development and application as a smart material.

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“…The agglomeration is attributed to the large number content of GNP and MWCNT. The embedded GNP and CNT agglomerates in the composites were also observed by Suherman et al [39].…”

Section: Tunnelling Conductionsupporting

confidence: 77%

WITHDRAWN: Effect of water absorption on graphene nanoplatelet and multiwalled carbon nanotubes- impregnated glass-reinforced epoxy composites

Ahmad

Ridzuan

Majid

et al. 2023

Preprint

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show abstract

“…It is worth noting that, in some cases, introducing Gr as a secondary filler may lead to a reduction in electrical conductivity. For instance, Suherman et al 91 developed BPPs by incorporating GNP into an epoxy/synthetic graphite composite. Their research showed that increasing the proportion of GNP at the expense of synthetic GR in epoxy/synthetic GR nanocomposites adversely affected both in‐plane and through‐plane electrical conductivities, especially up to a GNP content of 10 wt.%.…”

Section: Electrical Conductivity Of Bipolar Plate Nanocompositesmentioning

confidence: 99%

A review on key factors influencing the electrical conductivity of proton exchange membrane fuel cell composite bipolar plates

Shojaei,

Rostami‐Tapeh‐Esmaeil,

Mighri

2024

Polymers for Advanced Techs

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Fuel cells are gaining increasing importance as a promising alternative to traditional energy sources, primarily due to their exceptional efficiency and environmental advantages. The electrical performance of proton exchange membrane fuel cells (PEMFCs) largely depends on the effectiveness of proton and electron transport within the cell components. A critical factor impacting this efficiency is the electrical conductivity of polymer‐based bipolar plates (BPPs), which play a fundamental role as current collectors. BPPs in PEMFCs can be made from various materials including coated metallic materials, graphitic materials, and polymer composites. This review exclusively concentrates on polymer composite BPPs. Enhancing the overall cell performance is achievable through the integration of electrically conductive additives into the polymer matrix of these plates. Graphite (GR), carbon black (CB), carbon fibers (CF), carbon nanotubes (CNT), and graphene (Gr) all emerge as highly promising functional materials capable of substantially elevating BPPs performance. This study, among its various objectives, delves into the synergistic effects of these electrically conductive additives and their capacity to enhance the electrical conductivity within polymeric matrices. Furthermore, this review article thoroughly explores the influence of the polymeric matrix, encompassing co‐continuous morphology and processing conditions. In essence, it focuses on the improvement of BPPs electrical conductivity through innovative designs of their polymer‐based composites and nanocomposites and the particular selection of the electrically conductive fillers. The insights derived from this study significantly contribute to a more profound understanding of how to effectively harness the potential of this vital PEMFC component.

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“…Researchers found that combining a larger primary conductive filler with a smaller secondary conductive filler could increase the electrical conductivity value and improve the mechanical properties of the conductive composite. [23][24][25]. Chunhui et al [26] studied the influence of the incorporation of different sizes of conductive filler materials on the electrical conductivity of composite materials for the applications of bipolar plates in fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Electrical-Mechanical Performance of Epoxy/Graphite Composites Based on the Effects of Particle Size and Curing Conditions

et al. 2022

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This study aims to improve the electrical-mechanical performance of traditional epoxy/graphite composites for engineering applications. The improvement in the properties of these composites depended on the incorporation of different sizes of graphite particles of the same type and controlling their curing process conditions. The thermal properties and microstructural changes were also characterized. A maximum in-plane electrical conductivity value of approximately 23 S/cm was reported for composites containing 80 wt.% G with a particle size of 150 µm. The effect of combining large and small G particles increased this value to approximately 32 S/cm by replacing the large particle size with 10 wt.% smaller particles (75 µm). A further increase in the electrical conductivity to approximately 50 S/cm was achieved due to the increase in curing temperature and time. Increasing the curing temperature or time also had a crucial role in improving the tensile strength of the composites and a tensile strength of ~19 MPa was reported using a system of multiple filler particle sizes processed at the highest curing temperature and time compared to ~9 MPa for epoxy/G150 at 80 wt.%. TGA analysis showed that the composites are thermally stable, and stability was improved by the addition of filler to the resin. A slight difference in the degraded weights and the glass transition temperatures between composites of different multiple filler particle sizes was also observed from the TGA and DSC results.

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Investigation of electrical-mechanical performance of epoxy-based nanocomposites filled with hybrid electrically conductive fillers

Cited by 20 publications

References 31 publications

WITHDRAWN: Effect of water absorption on graphene nanoplatelet and multiwalled carbon nanotubes- impregnated glass-reinforced epoxy composites

WITHDRAWN: Effect of water absorption on graphene nanoplatelet and multiwalled carbon nanotubes- impregnated glass-reinforced epoxy composites

A review on key factors influencing the electrical conductivity of proton exchange membrane fuel cell composite bipolar plates

Improvement of the Electrical-Mechanical Performance of Epoxy/Graphite Composites Based on the Effects of Particle Size and Curing Conditions

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