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材料导报  2023, Vol. 37 Issue (17): 22010129-8    https://doi.org/10.11896/cldb.22010129
  无机非金属及其复合材料 |
微乳液法制备石墨烯-羰基铁粉复合微球及其吸波性能
何恩义1,2, 殷诗浩1, 叶永盛1,2, 丁迪1, 胡正浪1, 吴海华1,2,*
1 三峡大学机械与动力学院,湖北 宜昌 443002
2 石墨增材制造技术与装备湖北省工程研究中心,湖北 宜昌 443002
Graphene-Carbonyl Iron Powder Composite Microspheres Prepared by Microemulsion Method and Their Absorbing Properties
HE Enyi1,2, YIN Shihao1, YE Yongsheng1,2, DING Di1, HU Zhenglang1, WU Haihua1,2,*
1 College of Mechanical and Power Engineering of China Three Gorges University, Yichang 443002, Hubei, China
2 Graphite Additive Manufacturing Technology and Equipment Hubei Engineering Research Center, Yichang 443002, Hubei, China
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摘要 以开发轻量、高效、宽频的吸波材料为研究目的,本工作利用微乳液法制备石墨烯-羰基铁粉复合吸波微球,采用XRD、拉曼光谱(Raman)、SEM和矢量网络分析仪(VNA)对复合材料的物相结构、微观形貌和电磁性能进行表征分析,重点研究了石墨烯(rGO)含量对材料吸波性能的影响。结果表明,测试样品厚度为2.00 mm、rGO含量为6.7%(质量分数,全文同)时复合材料的吸波性能最强,其最小反射损耗达到-30.42 dB,有效吸收带宽为5.04 GHz (11.28~16.32 GHz)。rGO的添加有利于形成珊瑚孔洞结构,增加了电磁波的入射路径,同时孔洞的存在有利于增强介质之间的极化现象。rGO和羰基铁粉(CIP)的均匀分散构成了多吸波机理的协同效应。
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何恩义
殷诗浩
叶永盛
丁迪
胡正浪
吴海华
关键词:  石墨烯  复合材料  吸波机理  吸波性能  阻抗匹配    
Abstract: In order to develop light weight, high efficiency, broadband absorbing materials for the purpose of research, graphene-carbonyl iron powder composite absorbing microspheres were prepared by microemulsion method in this work. The phase structure, microstructure and electromagnetic properties of the composites were characterized by XRD, Raman spectroscopy (Raman), SEM and vector network analyzer (VNA). The effect of graphene (rGO) content on the absorbing properties of the materials was studied. The results show that when the thickness of the test sample is 2.00 mm and the rGO content is 6.7wt%, the absorption performance is the strongest, the minimum reflection loss is -30.42 dB, and the effective absorption bandwidth is 5.04 GHz (11.28—16.32 GHz). The addition of rGO is beneficial to the formation of coral pore structure, increasing the incidence path of electromagnetic wave, and the existence of pore is beneficial to enhance the polarization phenomenon between media. The uniform dispersion of rGO and CIP constitutes the synergistic effect of multi-absorbing mechanism.
Key words:  graphene    composite material    absorbing mechanism    absorbing performance    impedance matching
出版日期:  2023-09-10      发布日期:  2023-09-05
ZTFLH:  TB33  
基金资助: 国家自然科学基金(51575313);石墨增材制造技术与装备湖北省工程研究中心开放基金(HRCGAM202103)
通讯作者:  *吴海华,三峡大学机械与动力学院教授、博士研究生导师。1993 年武汉理工大学船舶机械制造及其自动化专业本科毕业,2003 年华中科技大学材料加工工程专业硕士毕业,2009年西安交通大学机械工程专业博士毕业。目前主要从事石墨/石墨烯 3D 打印等研究工作。近年来,在《机械工程学报》、Rapid Prototyping Journal、Journal of Advanced Manufacturing Technology等知名期刊发表学术论文70多篇,获得国家授权发明专利25项,科研成果转化2项。wuhaihua@ctgu.edu.cn   
作者简介:  何恩义,三峡大学机械与动力学院讲师、硕士研究生导师。2008年07月、2013年07月分别于中北大学和华南理工大学大学获得工学学士学位和工学博士学位。2013年博士毕业后到三峡大学工作至今。目前加入吴海华教授团队,主要从事吸波材料等方面的研究工作。发表论文10余篇,包括The International Journal of Advanced Manufacturing Technology、《复合材料学报》等。
引用本文:    
何恩义, 殷诗浩, 叶永盛, 丁迪, 胡正浪, 吴海华. 微乳液法制备石墨烯-羰基铁粉复合微球及其吸波性能[J]. 材料导报, 2023, 37(17): 22010129-8.
HE Enyi, YIN Shihao, YE Yongsheng, DING Di, HU Zhenglang, WU Haihua. Graphene-Carbonyl Iron Powder Composite Microspheres Prepared by Microemulsion Method and Their Absorbing Properties. Materials Reports, 2023, 37(17): 22010129-8.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.22010129  或          http://www.mater-rep.com/CN/Y2023/V37/I17/22010129
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