导电聚合物/磁性粒子复合吸波材料的研究进展

Research Progress of the Composite Wave-absorbing Material of Conductive Polymer/Magnetic Particle

随着电子设备和无线网络的普及,电磁波作为传播载体给人们带来便利的同时也造成了污染问题。由于电磁波具有可吸收特性,为有效地减少电磁波对环境的二次污染,各种吸波材料应运而生。导电聚合物具有密度低、导电性可调的优点,磁性粒子在较高频段能保持良好的磁损耗,因此这两种材料在材料吸波性能研究领域中得到了广泛的应用。本文对吸波材料的定义、机理及分类进行了简要论述,对导电聚合物和磁性粒子的性能特点以及在材料吸波性能研究领域的研究进展进行了介绍。由于导电聚合物与磁性粒子具有协同作用,因此同时含有这两种材料的吸波材料会兼具电损耗和磁损耗特性,进而改善了材料原有的吸波性能。还对导电聚合物/磁性粒子复合吸波材料的研究现状和存在的问题进行了介绍,并对其未来发展趋势进行了展望。

With the popularization of electronic equipment and wireless network,electromagnetic waves,as a carrier of transmission,have not only brought convenience,but also triggered pollution problems to human society.Various absorbing materials have been developed,owing to the absorbing properties of electromagnetic waves,and their ability to effectively reducing the secondary pollution of electromagnetic waves to the environment.Conductive polymers have the advantages of low density and adjustable conductivity,and magnetic particles can maintain good magnetic loss in a high frequency band,so these two kinds of materials have been widely used in the research of absorbing properties of materials.In this paper,the definition,mechanism and classification of absorbing materials are briefly discussed,the properties of the conductive polymers and magnetic particles,as well as the research progress in the field of absorbing properties of materials are introduced.Due to the synergistic effect between conductive polymer and magnetic particles,an absorbing material containing these two kinds of materials will have both electrical and magnetic loss characteristics,which improves the original absorbing properties of materials.In this paper,the research status and existing problems of the composite absorbing material of conductive polymer/magnetic particles and its future development trend is also prospected.