Fe3O4-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

材料导报

2022, Vol. 36

Issue (5): 20110094-6 https://doi.org/10.11896/cldb.20110094

高分子与聚合物基复合材料

Fe₃O₄-MWCNTs杂化纳米纸对纤维增强复合材料吸波性能的影响

李威霖¹, 王佳², 焦剑¹

1 西北工业大学化学与化工学院,西安 710129
2 西安超码科技有限公司,西安 710025

Effect of Fe₃O₄-MWCNTs Hybrid Buckypapers on the Microwave Absorbing Properties of Fiber Reinforced Composites

LI Weilin¹, WANG Jia², JIAO Jian¹

1 School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
2 Xi'an Chaoma Technology Co.,Ltd., Xi'an 710025, China

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摘要本工作采用原位合成法及真空抽滤法制备了四氧化三铁-多壁碳纳米管(Fe₃O₄-MWCNTs)杂化纳米粒子及杂化纳米纸,并将这类杂化纳米纸铺贴于玻璃纤维/环氧树脂(GF/EP)基板上制备了吸波复合材料,此类吸波材料极大地改善了吸波涂层在应用中用量受限、成型工艺差、吸波性能难以调控的问题。研究结果表明:在Fe₃O₄含量为30%(质量分数,下同)时,Fe₃O₄/MWCNTs杂化纳米粒子及其纳米纸吸波性能最佳,杂化纳米粒子的反射损耗RL<-10 dB的频宽为2.88 GHz,最小RL在14.7 GHz处可达-26.36 dB;杂化纳米纸的RL<-10 dB的频宽为6.0 GHz,最小RL在16.3 GHz处可达-26.4 GHz。吸波复合材料经EP表面处理后的吸波性能得到提高,最小RL在14.2 GHz处达到-25.6 dB;多层铺贴杂化纳米纸增加了吸波层厚度,提高了吸波复合材料的吸波性能,当铺贴两层纳米纸时材料的吸波性能最佳,RL<-6 dB的频宽为4.5 GHz,最小RL在12.4 GHz处可达-31.2 dB。

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	李威霖
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关键词: 多壁碳纳米管(MWCNTs) 四氧化三铁(Fe₃O₄) 杂化纳米纸吸波复合材料吸波性能

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

出版日期: 2022-03-10 发布日期: 2022-03-08

ZTFLH:

TB332

基金资助: 陕西省自然科学基础研究计划(2020JM-087)

通讯作者: jjiao@nwpu.edu.cn

作者简介: 李威霖,2019年6月毕业于西北工业大学,于2019年9月至今在西北工业大学化学与化工学院攻读材料学硕士学位,主要从事吸波复合材料领域的研究。
焦剑,西北工业大学化学与化工学院,教授,博士研究生导师,陕西省复合材料学会会员,中国环氧树脂学会会员。2007年—2008年受国家留学基金委资助赴美国密歇根州立大学化学系从事访问研究。目前主要研究方向有中空无机纳米粒子的合成及应用、介孔材料的设计在透波材料和二氧化碳吸附材料上的应用以及石墨烯、碳纳米管等在电磁屏蔽材料上的应用等。

引用本文:

李威霖, 王佳, 焦剑. Fe₃O₄-MWCNTs杂化纳米纸对纤维增强复合材料吸波性能的影响[J]. 材料导报, 2022, 36(5): 20110094-6.
LI Weilin, WANG Jia, JIAO Jian. Effect of Fe₃O₄-MWCNTs Hybrid Buckypapers on the Microwave Absorbing Properties of Fiber Reinforced Composites. Materials Reports, 2022, 36(5): 20110094-6.

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http://www.mater-rep.com/CN/10.11896/cldb.20110094 或 http://www.mater-rep.com/CN/Y2022/V36/I5/20110094

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