文章信息/Info

Title:

Advances in Graphene-Based Microwave Absorption Materials

文章編號:

1674-3962(2020)01-0064-06

作者:

康帥; 喬士亞; 胡祖明; 于俊榮; 王彥; 諸靜

(東華大學 纖維材料改性國家重點實驗室,上海 201620)

Author(s):

KANG Shuai;  QIAO Shiya;  HU Zuming;  YU Junrong;  WANG Yan;  ZHU Jing

(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China)

關鍵詞:

石墨烯; 介電性能; 反射損耗; 吸波性能; 吸波材料

Keywords:

graphene;  dielectric properties;  reflection loss;  microwave absorption properties;  microwave absorption materials

分類號:

TB34

DOI:

10.7502/j.issn.1674-3962.201810008

文獻標志碼:

A

摘要:

諸如鐵氧體、磁性金屬粒子及其合金等傳統吸波材料，密度大、環境穩定性差、對電磁波的吸收弱以及吸收頻帶窄的缺陷限制了其在吸波領域的應用，而石墨烯因其較高的機械強度、較小的密度以及優異的介電性能受到了吸波材料領域眾多學者的關注；但由于石墨烯的阻抗匹配性能較差，損耗機制比較單一，導致其吸波性能較差，因此，研究人員通常將石墨烯與其他介電損耗型或者磁損耗型材料復合來增強其吸波性能，此外對吸波劑的結構進行合理的設計也是增強其吸波性能的有效途徑。結合國內外的發展狀況，對石墨烯基吸波材料的制備以及性能研究做了綜述性介紹，并展望了未來石墨烯基吸波材料的發展方向。

Abstract:

Conventional microwave absorption materials, such as ferrite, magnetic metal particles and their alloys, have a few shortcomings of high density, poor environmental stability, weak electromagnetic wave absorption and narrow absorption bandwidth, limiting their applications in the field of microwave absorption. Recently, graphene has grabbed the considerable attention from many researchers, owing to its high mechanical strength, low density and excellent dielectric properties. However, the poor impedance matching and single loss mechanism of graphene result in the weak microwave absorption performance. Thus, it is a common strategy to enhance the microwave absorption performance by the incorporation of other dielectric or magnetic loss material. In addition, the rational structure design of the microwave absorber is also conductive to the absorption of the microwave. Based on the research situation at home and abroad, this paper summarizes the recent research progresses of both preparation and performance of graphene-based microwave absorption materials, and the development tendency is also put forward.