改性铁氧体复合吸波材料研究进展  

Research progress in modified ferrite composite absorbing materials

作　　者：朱炳辉 张昭环 谢光银 武旺旺 缐海忠 刘杰 王抒情 ZHU Binghui;ZHANG Zhaohuan;XIE Guangyin;WU Wangwang;XIAN Haizhong;LIU Jie;WANG Shuqing(School of Textile Science and Engineering,Xi′an University of Technology,Xi′an 710048)

机构地区：[1]西安工程大学纺织科学与工程学院,陕西西安710048

出　　处：《合成纤维工业》2024年第4期74-79,共6页China Synthetic Fiber Industry

基　　金：陕西省重点研发计划项目(2020GY-303)。

摘　　要：介绍了无机物、有机物、稀土材料改性铁氧体复合吸波材料的研究现状及优缺点,并指出了今后的研究方向。无机物改性以碳系材料改性为主,其次是无机氧化物,通过引入无机物调节材料的介电损耗和磁损耗,从而调整其电磁参数,提高其吸波性能,但因有些无机物可能具有毒性而使材料存在环境风险。有机物改性以导电聚合物改性为主,将导电聚合物与铁氧体结合,通过调节材料的电磁特性来优化其吸波性能,但有机物改性铁氧体的热稳定性及耐候性较差。稀土材料改性铁氧体主要通过掺杂稀土元素的方式调节铁氧体的电磁参数,以提高材料的宽频特性和吸收效率,但成本高、稀土资源有限且对环境有一定的影响。改性铁氧体复合吸波材料今后的研究方向是优化改性工艺、通过调节电磁参数以提高吸收损耗能力、拓展应用领域、克服吸波材料的限制。The research status and advantages and disadvantages of inorganic,organic and rare earth modified ferrite composite absorbing materials were introduced,and the future research directions were pointed out.Inorganic modification mainly focuses on carbon based materials,followed by inorganic oxides.Their electromagnetic parameters can be adjusted to improve their absorption performance by introducing inorganic substances to regulate the dielectric and magnetic losses of materials,however,some inorganic substances may be toxic,posing environmental risks to the materials.Organic modification mainly focuses on conductive polymer modification,i.e.combining conductive polymer with ferrite to optimize its absorption performance by adjusting the electromagnetic properties of the material,however,the thermal stability and weather resistance of organic modified ferrite were poor.The modification of ferrite with rare earth materials mainly adjusts the electromagnetic parameters of ferrite by doping rare earth elements to improve the broadband characteristics and absorption efficiency of the material,however,the cost is high and rare earth resources are limited and have a certain impact on the environment.The future research direction of modified ferrite composite absorbing materials is to optimize the modification process,improve absorption loss capacity by adjusting electromagnetic parameters,expand application fields and overcome the limitations of absorbing materials.

关 键 词：铁氧体 稀土材料 改性 复合吸波材料 吸波性能 

分 类 号：TQ342.89[化学工程—化纤工业]