碳基吸波材料的研究进展-中国材料进展

文章信息/Info

作者:: 程金波; 赵海波; 李蒙恩; 李书亮; 王玉忠; （四川大学化学学院，环境与火安全高分子材料省部共建协同创新中心，高分子材料工程国家重点实验室，环保型高分子材料国家地方联合工程实验室（四川），四川成都 610064）

Author(s):: CHENG Jinbo; ZHAO Haibo; LI Mengen; LI Shuliang; WANG Yuzhong; (Collaborative Innovation Center for EcoFriendly and FireSafety Polymeric Materials(MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for EcoFriendly Polymer Materials(Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China)

Keywords:: carbon-based composites; microwave absorption materials; reflection loss; impedance matching

摘要:: 随着微波技术的迅速发展，吸波材料在电子设备可靠性、医疗保健与国防安全等方面发挥着越来越重要的作用。具有厚度薄、质量轻、吸波频带宽且吸收能力强等优异性能的吸波材料引起了研究者们的极大兴趣。近年来，碳基材料由于密度低、比表面积大、介电损耗强和导电性高等特点，逐渐发展成为一类高性能吸波材料。首先，简述了吸波材料的吸波机理，并从还原氧化石墨烯（RGO）基、碳纳米管基与多孔碳基吸波材料3方面详细综述了近年来碳基吸波材料的研究进展。其次，围绕电磁参数的调控、阻抗匹配特性的提高与多种损耗机制的创建等影响吸波性能的关键因素，讨论分析了目前提高碳基材料吸波性能的方法。此外，还指出了目前碳基吸波材料存在的缺点、面临的挑战和发展前景，为吸波领域开展相关研究工作提供了借鉴。

Abstract:: With the rapid development of microwave technology, microwave absorption materials (MAMs) are playing a more important role in electronic reliability, healthcare, national defense security. High performance MAMs with thin thickness, low density, wide microwave absorption bandwidth and strong absorption have attracted researchers-great interests. Recently, owing to their low density, high specific surface area, strong dielectric loss and high electronic conductivity, carbon-based materials have been gradually developed into a kind of high-performance MAMs. Firstly, the mechanism of microwave absorption was briefly described. And the research progress on carbon-based MAMs, including reduced graphene oxide(RGO) based composites, carbon nanotubes based composites and porous carbon based composites, was reviewed. Furthermore, the methods of improving the microwave absorbing performance for carbon-based materials were discussed and analyzed. It is mainly around the critical factors which have influence on microwave absorbing performance by regulating electromagnetic parameters, improving impedance matching and establishing various loss mechanisms. Moreover, the shortcomings, challenges, and prospects of carbon-based MAMs were also put forward, which laid the foundation for developing researches in related fields.