Research Progress of Electromagnetic Shielding Mechanism and Coated/Structural Absorbing Composite Materials
ZHANG Mingwei1, QU Guanda1, PANG Mengyao1, LIU Rui1, CAO Guanyu2, LI Ze2, CHEN Zishuai1, LIU Jingshun1
1 School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China 2 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Abstract: The increasingly serious electromagnetic pollution was caused by the rapid development of electronic products and communication technology, which not only endangers human health and instrument precision, but also causes information leakage and loss of safety guarantee. Electromagnetic shielding technology is one of the direct and effective prevention and control method, which can prevent the transmission of electromagnetic waves by attenuated or even completely eliminate electromagnetic waves. The mechanism of electromagnetic shielding includes electromagnetic wave reflection and electromagnetic wave absorption. The scientific design and preparation of high-performance absorbing composite materials has become one of the hot issues in research. The results show that the electromagnetic wave attenuation not only requires an excellent electromagnetic loss performance of the absorbing material, but also requires the electromagnetic wave to be able to effectively enter into the absorbing material based on the impedance matching characteristics between the free space and the matrix material, so that the electromagnetic wave can be efficiently absorbed by the absorbing agent. Generally, according to the preparation process, absorbing composites can be divided into coated absorbing composites and structural absorbing composites. The former is fully mixed with absorbing agents, paints, adhesives, etc., and then coated on the surface of the components as absorbing coatings, while the latter is a new type of absorbing composites which uses absorbing agent as the functional carrier, materials with excellent physical and chemical properties as the matrix, and has synergistic or enhanced effect with the functional carrier. This paper systematically summarizes the electromagnetic shielding theory and the intrinsic characteristics of the wave absorbing materials, and briefly reviews the coated/structural absorbing composite materials based on related theoretical basis, comparing the absorbing properties of different types of absorbing materials, discusses coating/structural absorbing composite materials for the future development of restricting factors and the future development prospect. It provides theoretical support and research ideas for the development of new wave absorbing composites.
作者简介: 张明伟,2018年毕业于辽宁工业大学,获工学学士学位。现为内蒙古工业大学材料科学与工程学院材料科学与工程学科硕士研究生。目前主要从事电磁屏蔽及吸波功能复合材料的开发及应用研究工作。刘景顺,内蒙古工业大学材料科学与工程学院教授、博士研究生导师。2013年毕业于哈尔滨工业大学材料加工工程专业,获工学博士学位。教育部霍英东青年教师基金获得者,内蒙古自治区杰出青年基金获得者,内蒙古自治区“草原英才”。主要从事微尺度金属功能材料和电磁屏蔽及吸波复合功能材料的研究工作。近年来,在Advanced Enginee-ring Materials、Journal of Alloys and Compounds、Materials & Design、Journal of Magnetism and Magnetic Materials等国际期刊上发表SCI论文60余篇。
引用本文:
张明伟, 曲冠达, 庞梦瑶, 刘瑞, 曹贯宇, 李泽, 陈子帅, 刘景顺. 电磁屏蔽机理及涂敷/结构型吸波复合材料研究进展[J]. 材料导报, 2021, 35(Z1): 62-70.
ZHANG Mingwei, QU Guanda, PANG Mengyao, LIU Rui, CAO Guanyu, LI Ze, CHEN Zishuai, LIU Jingshun. Research Progress of Electromagnetic Shielding Mechanism and Coated/Structural Absorbing Composite Materials. Materials Reports, 2021, 35(Z1): 62-70.
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