电磁屏蔽用MXene/Fe3O4/MWCNT柔性三层薄膜复合材料的制备与表征

IF 5.3 Q2 MATERIALS SCIENCE, COMPOSITES

Composites Part C Open Access Pub Date : 2025-01-22 DOI:10.1016/j.jcomc.2025.100562

Mariam Mansoori, Shaohong Luo, Daniel Choi

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引用次数: 0

摘要

我们的研究展示了使用多层（三层）复合材料屏蔽电磁干扰（EMI）的实际实现。三层为：(1)底层为多壁碳纳米管(MWCNT)/羧甲基纤维素（CMC）复合材料；(2) MWCNT/CMC/氧化铁（Fe3O4）颗粒作为中间层的复合材料；(3) MXene/MWCNT/CMC/Fe3O4为顶层的复合材料。为了使各层的电磁性能最大化，对各层的组成进行了优化。每层复合材料都具有优异的导电性和优异的电磁干扰屏蔽性能。多层材料的EMI SET值为48 dB， SEA值超过33 dB，在x波段频率范围内的SER值低至15 dB，与单层材料相比，EMI应用显著增强。

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Fabrication and characterization of the flexible three-layered thin film composites based on MXene/Fe3O4/MWCNT for electromagnetic shielding applications

Our research demonstrates the practical implementation of using multilayer (three layers) composites for electromagnetic interference (EMI) shielding. Three layers are: (1) The composites of multi-walled carbon nanotubes (MWCNT)/ carboxymethylcellulose (CMC) as the bottom layer; (2) The composites of MWCNT/CMC/iron oxide (Fe₃O₄) particles as the middle layer; (3) The composites of MXene/MWCNT/CMC/Fe₃O₄ as the top layer. Composition of each layer was optimized in order to maximize the electromagnetic properties of each layer. Each composite layer has outstanding electrical conductivity and excellent EMI shielding performance. The multilayer exhibits an EMI SE_T of 48 dB, SE_A of more than 33 dB, and low SE_R of 15 dB in the X-band frequencies range, significantly enhanced compared to the single-layered materials for EMI applications.

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来源期刊

Composites Part C Open Access Engineering-Mechanical Engineering

CiteScore

8.60

自引率

2.40%

发文量

审稿时长

55 days