随着民用和军用领域通信技术的飞速发展,电磁波产生的废弃电磁辐射污染问题变得尤为突出。为解决电磁污染对人类生存环境带来的负面影响,亟待寻找一种轻质、高吸收性能、宽吸收频带的新型吸波材料。传统单一吸波材料吸收频带窄、吸收性能弱。但将磁损耗型材料与介电损耗型材料复合,可实现良好的阻抗匹配。阐述了电磁吸收的基本原理,并对目前国内外最常见的几种新型复合吸波材料的研究进展及发展前景进行了介绍。通过对导电聚合物复合吸波材料、生物质衍生碳基复合吸波材料、磁性金属复合吸波材料等新型材料的合成方法、结构、优缺点、吸波性能的总结。为研发吸收性能强、吸收频带宽、厚度薄、质轻的高效宽频吸波材料提供参考。
With the rapid development of communication technology in civil and military fields,the waste electromagnetic radiation pollution caused by electromagnetic wave has become particularly prominent.In order to solve the negative impact of electromagnetic pollution on the human living environment,it is urgent to find a new kind of absorbing material that is lightweight,has high absorption performance,and possesses a wide absorption frequency band.Traditional single absorbing materials have narrow absorption frequency band and weak absorption performance.However,good impedance matching can be achieved by combining magnetic loss material with dielectric loss material.The basic principle of electromagnetic absorption was described,and the research progress and development prospect of several common new composite absorbing materials at home and abroad were introduced.The synthesis methods,structures,advantages and disadvantages and properties of new materials such as conductive polymer composite absorbing materials,biomass-derived carbon-based composite absorbing materials and magnetic metal composite absorbing materials were summarized,providing a reference for the development of high efficiency wideband absorbing materials with strong absorption performance,wide absorption frequency band,thin thickness and lightweight.
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基金资助
云南省“兴滇英才支持计划”产业创新人才(云发改人事〔2019〕1096号);云南省“兴滇英才支持计划”青年人才(云人社发〔2018〕73号)
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