空腔石墨烯的盐模板制备及其吸波性能  

Preparation of Cavity Graphene by Salt Template Method and Its Microwave Absorption Properties

作　　者：张强 周成华 张鸿鹄 赵睿 ZHANG Qiang;ZHOU Chenghua;ZHANG Honghu;and ZHAO Rui(Sinopec Oilfield Service Corporation,Beijing 100020,China;Drilling Engineering Research Institute of Sinopec Southwest Petroleum Engineering Corporation,Deyang 618000,China;School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]中石化石油工程技术服务股份有限公司,北京100020 [2]中石化西南石油工程有限公司钻井工程研究院,德阳618000 [3]电子科技大学材料与能源学院,成都611731

出　　处：《电子科技大学学报》2024年第1期14-20,共7页Journal of University of Electronic Science and Technology of China

摘　　要：目前电磁波辐射控制材料正朝着“薄、轻、宽、强”的方向发展。在此背景下,碳基吸波材料,尤其是石墨烯基电磁波吸收材料受到了大量的关注。为了解决制备特殊形貌的石墨烯的难题,实验采用固相热解法,利用氯化钠作为模板、无金属酞菁作为碳源,合成了空腔立方体状的少层石墨烯。在制备过程中,利用反溶剂法制备氯化钠立方体模板,利用溶剂分散无金属酞菁,实现了碳源与盐模板的均匀混合,探究了不同热解温度对电磁波吸收性能的影响。实验结果表明,700℃热解得到的产物,在填充装载度仅为4 wt%、模拟涂层匹配厚度为2.5 mm时有效吸收带宽高达6.7 GHz。该实验为新型低维石墨烯基电磁波吸收材料的大规模制备和应用研究提供了一条新思路。Graphene-based electromagnetic wave absorbing materials have received great attention.In this paper,cavity cubic few-layer graphene was synthesized by solid-phase pyrolysis using sodium chloride as the template and phthalocyanine as the carbon source.In the preparation process,the sodium chloride cubic template was prepared by the antisolvent method and the homogeneous mixing of carbon source and template was achieved simultaneously.The experimental results show that the products obtained by pyrolysis at 700℃ can achieve an effective absorption bandwidth of 6.7 GHz with a filler loading of only 4 wt%and a coating matching thickness of 2.5 mm.

关 键 词：电磁波吸收材料 石墨烯 酞菁 盐模板法 

分 类 号：TB34[一般工业技术—材料科学与工程]