王欢欢 赵晓明



摘要: 随着电子信息技术的发展,电磁波广泛存在于人们的日常生活中,已经成为重要的环境污染源之一。电磁波不仅会干扰飞机、雷达等军用设备的信号,还对人体的健康有潜在威胁,所以越来越多的研究工作者投入到电磁吸波材料的研究中。文章首先介绍了吸波材料的研究背景和機理;其次,围绕石墨烯/导电聚合物、石墨烯/磁性材料、三维多孔石墨烯基材料这三方面阐述了近年来石墨烯柔性复合材料的研究进展;最后,分析了电磁吸波材料未来的发展趋势和挑战。
关键词: 石墨烯;导电聚合物;磁性粒子;复合材料;吸波性能
中图分类号: TS101.8;TB34
文献标志码: A
文章编号: 10017003(2021)01001809
引用页码: 011104
DOI: 10.3969/j.issn.1001-7003.2021.01.004(篇序)
Study on absorbing property of graphene flexible composite material
WANG Huanhuan, ZHAO Xiaoming
(School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China)
Abstract:
With the development of electronic information technology, electromagnetic wave widely exists in peoples daily life and has become one of important environmental pollution sources. Electromagnetic wave not only interfered with the signals of aircraft, radar and other military equipment, but also imposes a potential threat to human health. Hence, more and more researchers are devoted to the research of electromagnetic wave absorbing materials. The paper firstly introduces the research background and mechanism of absorbing materials. Secondly, this paper sets forth the research progress of graphene flexible composite material in recent years by focusing on graphene/conductive polymer, graphene/magnetic materials, and three-dimensional porous graphene-based materials. Finally, this paper analyzes the future development tendency and challenges of electromagnetic wave absorbing materials.
Key words:
graphene; conducting polymer; magnetic particle; composite material; absorbing property
近年来,各种各样的移动、便携式电子设备的广泛应用,给人们的生活带来便利的同时,也造成了严重的电磁污染。过高的电磁辐射所形成的电磁污染,不仅会影响飞机、雷达、电子产品的正常运行,甚至还会影响人类身体健康[1-4]。此外,已投入使用的电磁吸波材料多为结构型刚性材料,柔韧性、舒适性较差,所以,研发性能优异的柔性吸波材料不仅在民用生活还是在军事领域都有重要意义。
吸波材料按照损耗机理可分为导电损耗、电介质损耗、磁损耗3种类型[5]。导电型材料的吸波机理与导电率有关,即导电率越大,载流子引起的宏观电流越大,从而有利于电磁能转化成为热能,碳材料、导电高分子聚合物等都属于导电型吸波材料[6-7];电介质……