Graphene-enhanced Fe3O4/ethylcellulose composite microspheres with wave absorption properties

Yongsheng YE; Di DING; Haihua WU; Enyi HE; Shihao YIN; Zhenglang HU; Chao YANG

doi:10.7527/S1000-6893.2022.27549

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2023 , Vol. 44 >Issue 11: 427549 - 427549

DOI: https://doi.org/10.7527/S1000-6893.2022.27549

Material Engineering and Mechanical Manufacturing

Graphene-enhanced Fe₃O₄/ethylcellulose composite microspheres with wave absorption properties

Yongsheng YE ,
Di DING ,
Haihua WU ,
Enyi HE ,
Shihao YIN ,
Zhenglang HU ,
Chao YANG

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^1.Graphite Additive Manufacturing Technology and Equipment Hubei Engineering Research Center，China Three Gorges University，Yichang 　443002，China
^2.School of Machinery and Power，China Three Gorges University，Yichang 　443002，China

E-mail： wuhaihua@ctgu.edu.cn

Received date: 2022-05-31

Revised date: 2022-06-16

Accepted date: 2022-07-18

Online published: 2022-08-03

Supported by

National Natural Science Foundation of China(51575313);Open Fund of Hubei Provincial Engineering Research Center of Graphite Additive Manufacturing Technology and Equipment(HRCGAM202106);Open Fund of Yichang Key Laboratory of Graphite Additive Manufacturing(YKLGAM202005)

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Abstract

Multi-component composite materials are conducive to the realization of high-efficiency， light-weight and broadband absorbing effects， and have important research and application value in the aerospace field. Reduced Graphene Oxide （rGO）-Fe₃O₄/Ethyl Cellulose （Ec） composite microspheres with Ec as the skeleton were prepared by emulsification reaction， and the physical structure， microscopic morphology and electromagnetic properties of the composite microspheres were characterized and analyzed by X-Ray Diffractometer （XRD）， Raman Spectroscopy （Raman）， Scanning Electron Microscopy （SEM） and Vector Network Analyzer （VNA）. The results show that the composite microspheres are ordered internally by the combination of Ec with rGO and Fe₃O₄， and Ec forms a rich porous structure， which enhances multiple reflection and scattering of microwaves. When the graphene content is 6.6wt% and the thickness is 1.8 mm， the minimum reflection loss （–30.35 dB） is achieved at 14.32 GHz， and the effective absorption bandwidth is 4.88 GHz （12.24–17.12 GHz）.

Key words： graphene; composite; absorbing mechanism; impedance matching; Fe₃O₄

Cite this article

Yongsheng YE , Di DING , Haihua WU , Enyi HE , Shihao YIN , Zhenglang HU , Chao YANG . Graphene-enhanced Fe₃O₄/ethylcellulose composite microspheres with wave absorption properties[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(11) : 427549 -427549 . DOI: 10.7527/S1000-6893.2022.27549

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