Fe_(3)O_(4)/CNTs@C_(f)复合材料的制备及其吸波性能的研究  

Preparation and microwave absorbing properties of Fe_(3)O_(4)/CNTs@C_(f)composites

作　　者：李焕然[1] 马关胜 杨智伟 夏龙[1] LI Huanran;MA Guansheng;YANG Zhiwei;XIA Long(School of Materials Science and Engineering Harbin Institute of Technology, Weihai 264209, China)

机构地区：[1]哈尔滨工业大学(威海)材料科学与工程学院,山东威海264209

出　　处：《功能材料》2021年第4期4023-4029,共7页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51972078);2020年度重庆市出版专项资金资助项目。

摘　　要：为了改善传统碳材料的吸波性能,获得具有多元吸波机理的吸波材料,本文通过化学气相沉积法在碳纤维表面原位生长碳纳米管,后采用溶剂热反应在CNTs@C_(f)上生成Fe_(3)O_(4)纳米颗粒,制备出了Fe_(3)O_(4)/CNTs@C_(f)复合材料,并对其吸波性能进行研究,分析了复合材料的合成机理和吸波机理。其反射损耗在C波段可达-43.02 dB,随着Fe_(3)O_(4)纳米颗粒含量的进一步增加,其吸波性能下降。In order to improve the microwave absorbing properties of traditional carbon materials and obtain microwave absorbing materials with multiple absorbing mechanisms,the Fe_(3)O_(4)/CNTs@C_(f)composites were fabricated by chemical vapor deposition(CVD)method and solvothermal reaction.The microwave absorbing properties of the composites were studied,and the formation mechanism and absorption mechanism of the composite were analyzed.The reflection loss can reach-43.02 dB in C band.With the further increase of Fe_(3)O_(4)nanoparticles content,the microwave absorption performance of the composite decreases.

关 键 词：吸波 水热 化学气相沉积 碳纳米管 Fe_(3)O_(4) 复合材料 

分 类 号：TB34[一般工业技术—材料科学与工程]