Fe<sub>3</sub>O<sub>4</sub>-MWCNTs杂化纳米纸对纤维增强复合材料吸波性能的影响

doi:10.11896/cldb.20110094

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Abstract Fe₃O₄-MWCNTs hybrid nanoparticles are prepared by in-situ synthesis method and hybrid buckypapers are prepared furtherly by vacuum filtration method. This kind of absorbing materials greatly solves the problems of limited dosage, poor molding process, and difficulty in controlling absorbing performance in the application of absorbing coatings.The Fe₃O₄/MWCNTs hybrid nanoparticles exhibit an effective absorption bandwidth of 2.88 GHz(below -10 dB) and minimum RL value of -26.36 dB at a frequency of 14.7 GHz at 30% loading of Fe₃O₄. Under the same ratio, the bandwidth of hybrid buckypapers is 6.0 GHz(below -10 dB) and minimum RL value is -26.4 GHz at a frequency of 16.3 GHz. Additionally, the absorbing composites shows RL value of -25.6 dB at a frequency of 14.2 GHz, which indicates the absorbing performance of absorbing composites are improved after EP coating surface of composites. Moreover, the multi-layer hybrid buckypapers being pasted on the GF/EP composites increase the thickness of the absorbing layer, which improves the absorbing performance of the absorbing composites. The absorbing composites with two layers of hybrid buckypapers dominate their good absorbing performances including an effective absorption bandwidth of 4.5 GHz(below -6 dB) and the minimum RL value of -31.2 dB at a frequency of 12.4 GHz.

Key words： multi-walled carbon nanotubes(MWCNTs) ferric oxide(Fe₃O₄) hybrid buckypaper absorbing composites absorbing performance

Published: 10 March 2022 Online: 2022-03-08

CLC number:

TB332

Fund:Shaanxi Province Natural Science Basic Research Program (2020JM-087)

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	LI Weilin
	WANG Jia
	JIAO Jian

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LI Weilin,WANG Jia,JIAO Jian. Effect of Fe₃O₄-MWCNTs Hybrid Buckypapers on the Microwave Absorbing Properties of Fiber Reinforced Composites[J]. Materials Reports, 2022, 36(5): 20110094-6.

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http://www.mater-rep.com/EN/10.11896/cldb.20110094 OR http://www.mater-rep.com/EN/Y2022/V36/I5/20110094

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