Lightweight double-layer structured ANF/MXene aerogel film with electromagnetic interference shielding and dynamic infrared camouflage

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-10-13 DOI:10.1007/s42114-024-01001-6

Yong Shen, Guojie Li, Yajie Cheng, Yahong Li, A. Alhadhrami, Ahmed M. Fallatah, Dalal A. Alshammari, Bing Zhou, Yuezhan Feng, Chuntai Liu

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引用次数: 0

Abstract

Developing a multifunctional protection material compatible with infrared (IR) stealth and electromagnetic interference (EMI) shielding is urgently required but challenging to ensure special human safety and maintain the smooth operation of electronic equipment. Herein, it is designed and fabricated a double-layered ANF/MXene film containing a thermally insulated aramid nanofiber (ANF) aerogel and low emissivity MXene coating with integrated long-term thermal camouflage at elevated temperatures and highly efficient EMI shielding capability. In this system, the lower aerogel film can act as a barrier to insulate heat transfer through its novel skin–core structure under ultralow directional thermal conduction, while the upper Ti₃C₂T_x MXene coating can provide a very low emissivity surface and highly conductive network. Owing to its unique double-layer structure, the ANF/MXene film demonstrates a significant EMI shielding effectiveness of 43.6 dB and a remarkably low emissivity of 0.24, delivering excellent IR stealth performance across various ambient temperatures. This research lays the foundation for the creation of versatile protective materials that have great potential for use in both military and civilian contexts.

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具有电磁干扰屏蔽和动态红外伪装功能的轻质双层结构 ANF/MXene 气凝胶薄膜

为了确保人类的特殊安全和维持电子设备的平稳运行，开发一种兼具红外线（IR）隐身和电磁干扰（EMI）屏蔽功能的多功能防护材料迫在眉睫，但却极具挑战性。本文设计并制造了一种双层 ANF/MXene 薄膜，其中包含热绝缘芳纶纳米纤维（ANF）气凝胶和低发射率 MXene 涂层，在高温下具有长期热伪装和高效 EMI 屏蔽能力。在该系统中，下层气凝胶薄膜通过其新颖的皮核结构在超低定向热传导条件下起到隔绝热传导的作用，而上层 Ti3C2Tx MXene 涂层则可提供极低发射率表面和高导电性网络。由于其独特的双层结构，ANF/MXene 薄膜的电磁干扰屏蔽效能高达 43.6 dB，发射率低至 0.24，在各种环境温度下都具有出色的红外隐形性能。这项研究为创造多功能防护材料奠定了基础，这些材料在军事和民用领域都具有巨大的应用潜力。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.