期刊
JOURNAL OF MATERIOMICS
卷 8, 期 2, 页码 327-334出版社
ELSEVIER
DOI: 10.1016/j.jmat.2021.09.003
关键词
Flexible electromagneic shielding; Carbon fibers; WS2; Conductive networks
资金
- National Natural Science Foundation of China [52102368, 51772160, 51977009]
- China Postdoctoral Science Foundation [2020M682029]
- Regional Joint Fund for Basic Research and Applied Basic Research of Guangdong Province [2020SA001515110905]
This research focuses on the synthesis of WS2-carbon fiber composites using a simple hydrothermal method and their application in EMI shielding for electronic devices. The results show that the EMI shielding performance of WS2-CF is significantly improved, especially at S- and C-bands. The composite material achieves an EMI shielding efficiency of 36.0 dB at 2 GHz, which is much better than that of pure carbon fiber.
Flexible and wearable electromagnetic interference (EMI) shielding material is one of the current research focuses in the field of EMI shielding. In this work, for the first time, WS2-carbon fiber (WS2-CF) composites are synthesized by implanting WS2, which has a multiphase structure and a large number of defects, onto the surface of carbon fiber (CF) by using a simple one-step hydrothermal method, and are applied to protect electronic devices from EMI. It is found that the EMI shielding performance of WS2-CF is significantly improved, especially for those at S- and C-bands. At 2 GHz, the EMI shielding efficiency could reach 36.0 dB at a typical thickness of 3.00 mm of the composite, which is much better than that of pure CF (25.5 dB). Besides paving a novel avenue to optimize the electromagnetic shielding performance of flexible and wearable CF-based EMI shielding materials, which have great potential in the practical application for EMI shielding, this work provides a new paradigm for the design and synthesis of EMI shielding materials which have a broad application prospect. (C) 2021 The Chinese Ceramic Society. Production and hosting by Elsevier B.V.
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