还原程度对石墨烯复合材料吸波性能影响

玻璃钢/复合材料 ›› 2020, Vol. 0 ›› Issue (1): 47-51.

还原程度对石墨烯复合材料吸波性能影响

邹毅¹, 王钧¹, 田旭军²

1.武汉理工大学材料科学与工程学院,武汉 430070;
2.中国舰船研究设计中心,武汉 430064

收稿日期:2019-04-15 出版日期:2020-01-28 发布日期:2020-01-28
通讯作者: 王钧(1963-),男,教授,博士,主要从事高性能树脂基体、功能复合材料及先进复合材料工程技术方面的研究,wgdfrp@whut.edu.cn。
作者简介:邹毅(1993-),男,硕士研究生,主要从事电磁波吸收复合材料方面的研究。
基金资助:
国家自然科学基金资助项目(51672201)

EFFECT OF REDUCTION DEGREE ON MICROWAVE ABSORPTION PROPERTIES OF GRAPHENE COMPOSITES

ZOU Yi¹, WANG Jun¹, TIAN Xu-jun²

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
2.China Ship Development and Design Center, Wuhan 430064, China

Received:2019-04-15 Online:2020-01-28 Published:2020-01-28

摘要/Abstract

摘要： 还原石墨烯(RGO)是一种高效的电磁波吸收材料,其缺陷相关的介电损耗机制是当前研究的热点。本文在密闭氧化法制备氧化石墨烯(GO)的基础上,通过调节VC的用量制备了还原度可控的RGO。结果表明:RGO的还原度随着VC用量的增加而提高,且电导率与还原程度正相关;在1 GHz~18 GHz内,高度还原的RGO具有更好的吸波效果,当其在树脂基体中添加量仅为1.5wt%时,3 mm的吸波体在9.5 GHz具有最强吸收峰值-16.4 dB。本文探讨了RGO缺陷相关的介电弛豫机理,为新型的石墨烯基复合吸波体的研究和应用提供了实验依据。

关键词: 石墨烯, 还原程度, 维生素C, 吸波材料

Abstract: Reduced Graphene Oxide (RGO) is considered to be the most promising candidate for high-efficiencyelectromagnetic wave absorption materials. The dielectric loss mechanism associated with its defects is a hot topic in current research. Graphene Oxide (GO) was prepared by closed oxidation method, and RGO with controllable reduction degree was prepared by VC reduction. The results show that the reduction degree of RGO increases with the increase of the amount of VC and the conductivity is positively correlated with it. Highly reduction degree RGO has better absorbing property in 1 GHz~18 GHz. When the addition amount of RGO is only 1.5wt% in the resin matrix, the absorber with 3 mm thickness has the strongest absorption peak of -16.4 dB at 9.5 GHz. This work reveals the dielectric relaxation mechanism related to RGO defects, and provides an understanding for the research and application of novel graphene-based composite absorbers.

Key words: graphene, reduction degree, ascorbic acid, absorbing materials

中图分类号:

TB332

邹毅, 王钧, 田旭军. 还原程度对石墨烯复合材料吸波性能影响[J]. 玻璃钢/复合材料, 2020, 0(1): 47-51.

ZOU Yi, WANG Jun, TIAN Xu-jun. EFFECT OF REDUCTION DEGREE ON MICROWAVE ABSORPTION PROPERTIES OF GRAPHENE COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2020, 0(1): 47-51.

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