The Electric–Thermal Effect of a Carbon-Fibre-Reinforced Epoxy Composite and Its Corresponding Mechanical Properties
Article
Article Title | The Electric–Thermal Effect of a Carbon-Fibre-Reinforced Epoxy Composite and Its Corresponding Mechanical Properties |
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ERA Journal ID | 201391 |
Article Category | Article |
Authors | Zhu, Runtian, Wang, Guoxian, Lin, Yuebin, Long, Jinxi, Du, Longji, Du, Xusheng, Abousnina, Rajab and Tafsirojjaman, T. |
Journal Title | Polymers |
Journal Citation | 14 (21), pp. 1-13 |
Article Number | 4489 |
Number of Pages | 13 |
Year | 2022 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 2073-4360 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/polym14214489 |
Web Address (URL) | https://www.mdpi.com/2073-4360/14/21/4489 |
Abstract | In this work, the electric–thermal effect of a carbon-fibre-reinforced epoxy composite (CFRE) panel was studied, as well as the influence of the electric heating treatment on the mechanical properties of the composite. It was observed that the temperature of the composite increased rapidly once the current was loaded, and the equilibrium surface temperature was reached within 2 min. The electric–thermal effect and mechanical properties depended on both the current loading time and the current intensity. At 5A, the flexural modulus and strength of the CFRE increased before decreasing with the current loading time. Under the same treatment time, the flexural strength of the samples treated with 5A was evidently larger than that under the small current, and all the treated samples displayed enhanced flexural strength compared to that of untreated samples. The results depicted that the low-current treatment and short time could improve the interfacial properties between CF/epoxy, along with enhancing the flexural properties of the samples. However, a large amount of the joule heating from the larger current and a more extensive time frame is predicted to cause irreversible defects to the composite, which consequently leads to the reduction in flexural strength of the composite. TGA results indicated decreased thermal stability of the CFRE composite panels after the electric heating treatment was applied. |
Keywords | composites; electric–thermal response; epoxy resin; flexural strength; interfacial property |
Funder | Guangdong Science and Technology Department |
Byline Affiliations | Chang'an University, China |
Zhuhai Communication Group, China | |
Beijing University of Technology, China | |
Highway Bridges National Engineering Research Center, China | |
Jinan University, China | |
Curtin University | |
University of Adelaide | |
Library Services |
https://research.usq.edu.au/item/wq749/the-electric-thermal-effect-of-a-carbon-fibre-reinforced-epoxy-composite-and-its-corresponding-mechanical-properties
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