High-performance electrothermal coatings based on natural flake graphite for multifunctional electrothermal applications

Zhi Lei; Shengzhi Duan; Xiaowen Wu; Chaochao Gao; Lianyi Wang; Xin Min; Zhaohui Huang; Minghao Fang; Ruiying Luo; Bingcheng Luo

Journal of Materials Research and Technology (Mar 2023)

High-performance electrothermal coatings based on natural flake graphite for multifunctional electrothermal applications

Zhi Lei,
Shengzhi Duan,
Xiaowen Wu,
Chaochao Gao,
Lianyi Wang,
Xin Min,
Zhaohui Huang,
Minghao Fang,
Ruiying Luo,
Bingcheng Luo

Affiliations

Zhi Lei: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Shengzhi Duan: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Xiaowen Wu: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China; Corresponding author.
Chaochao Gao: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Lianyi Wang: Research Institute for Frontier Science, Beihang University, Beijing, 100191, China
Xin Min: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Zhaohui Huang: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Minghao Fang: Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, 100083, China
Ruiying Luo: Research Institute for Frontier Science, Beihang University, Beijing, 100191, China; Corresponding author.
Bingcheng Luo: College of Science, China Agricultural University, Beijing 100083, China; Corresponding author.

Journal volume & issue: Vol. 23
pp. 1013 – 1026

Abstract

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Electrothermal elements are used in electronic devices, physiotherapy, and health care due to their lightweight and fast temperature response. However, the high cost and susceptibility to oxidation of traditional electrothermal materials limit their application. In this work, a low-cost, environment-friendly, controllable, and high-performance natural flake graphite-based electrothermal coating is proposed that can be used in various electrothermal applications. The results demonstrate that the morphology and electrothermal properties of the coatings can be controlled based on pressure engineering and the use of various adhesives. The uncompressed electrothermal coatings can reach a maximum temperature of 157.9 °C and a maximum electric conductivity of 27.89 S/m at 36 V, whereas the compressed coatings can reach a maximum temperature of 199 °C at only 18 V and a maximum conductivity of 433.6 S/m, which is 22 times higher than the corresponding uncompressed coatings. This work provides a low-cost, high-performance, and well-attainable industrialization path for the application of natural graphite-based electrothermal coatings in indoor heating, light electrothermal clothing, and snow and ice removal.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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