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Enhanced thermal conductivity of carbon fibers/silanized graphene/epoxy matrix composites

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A Correction to this article was published on 31 January 2024

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Abstract

This study aimed to fabricate composites with high thermal conductivity using diglycidyl ether of bisphenol-A (DGEBA), incorporating carbon fiber cloth (CFC) and graphene as reinforcing agents. Notably, the dispersion of graphene within the DGEBA matrix was enhanced through surface modification via a silane coupling agent. The effects of CFC and graphene addition on the impact strength, thermal conductivity, and morphology of the composites were examined. The experimental results showed that the incorporation of 6 wt% CFC resulted in a substantial (16-fold) increase in impact strength. Furthermore, the introduction of 6 wt% CFCs along with 20 wt% graphene led to a remarkable enhancement in thermal conductivity to 5.7 W/(m K), which was approximately 22 and 4 times higher than the intrinsic thermal conductivities of pristine DGEBA and the CFC/DGEBA composite, respectively. The increased impact strength is ascribed to the incorporation of CFC and silane-modified graphene. Additionally, the gradual increase in thermal conductivity can be attributed to the enhanced interaction between the acidic silane-modified graphene and the basic epoxy–amine hardener within the system studied.

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Data availability

The authors declare that the data supporting the findings of this study are available within the paper. Should any raw data files be needed in another format they are available from the corresponding author upon reasonable request.

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Acknowledgements

This work was supported by a grant from the National Research Foundation of Korea (NRF), funded by the Korean government (MSIT) (No. 2023R1A2C1004109). This work was supported by the Science and Technology Projects of the Jilin Province Department of Education (JJKH20220237KJ).

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  1. Shan-Shan Yao and Seul-Yi Lee have contributed to the manuscript equally.

Authors and Affiliations

  1. Department of Polymer Materials, Jilin Institute of Chemical Technology, Jilin City, 132022, People’s Republic of China

    Shan-Shan Yao, Hai-Long Li & Fan-Long Jin

  2. Department of Chemistry, Inha University, Inharo 100, Incheon, 22212, South Korea

    Seul-Yi Lee & Soo-Jin Park

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Yao, SS., Lee, SY., Li, HL. et al. Enhanced thermal conductivity of carbon fibers/silanized graphene/epoxy matrix composites. Carbon Lett. 34, 647–655 (2024). https://doi.org/10.1007/s42823-023-00649-2

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