三层石墨烯吸波体熔融沉积成形及层间材料分布对吸波性能的影响

doi:10.11896/cldb.21080161

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Abstract Graphene/polylactic acid and graphene/Fe₃O₄/polylactic acid composites and three-layer graphene absorbers were rapidly prepared by fused deposition modeling technology. The electromagnetic parameters of the composites were measured and the reflectivity was calculated. The effects of interlayer distribution and pore structure of absorber on the microwave absorbing properties of three-layer graphene absorber were studied by CST simulation and experiment. It is found that for the composites, the two-component absorber has better microwave absorption performance, but it is difficult to form a good impedance match with the graphene one-component absorber. For the three-layer graphene absorber, graphene presents a uniform gradient distribution (The addition amount of graphene is 5%, 7% and 9% respectively), which can obtain the best absorbing effect. The existence of periodic hole structure, on the one hand, increases the number of reflection interfaces, resulting in more edge scattering effects and multiple resonance coupling. On the other hand, by improving impedance matching, it can realize full coverage effective absorption (reflectivity less than-10dB) in Ku band (12—18GHz) when graphene is distributed in a non-uniform gradient (The addition of graphene is 7%, 7% and 9% respectively). It provided a reference for efficient absorption in microwave band.

Key words： three-layer graphene absorber interlayer distribution of absorbing agent periodic hole structure fused deposition modeling microwave absorbing property

Published: Online: 2023-02-08

CLC number:

TB34

Fund:National Natural Science Foundation of China(51575313).

Corresponding Authors: uhaihua@ctgu.edu.cn

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	WU Haihua
	YANG Zenghui
	LIU Li
	ZHANG Renjing
	DENG Kaixin
	LI Yan

Cite this article:

WU Haihua,YANG Zenghui,LIU Li, et al. Forming of Three-layer Graphene Absorber by Fused Deposition Modeling and Effect of Interlayer Material Distribution on Microwave Absorption Properties[J]. Materials Reports, 2023, 37(2): 21080161-7.

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http://www.mater-rep.com/EN/10.11896/cldb.21080161 OR http://www.mater-rep.com/EN/Y2023/V37/I2/21080161

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