Flexible sandwich structure MXene-Aramid Nanofiber-MXene film for adjusting infrared camouflage and multifunctional application

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Composite Structures Pub Date : 2024-06-20 DOI:10.1016/j.compstruct.2024.118299

Zhenqian Lu , Xu Shen , Zhihui Li , Qi Jia

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Abstract

As the rapid developing in infrared detection technology, infrared camouflage has attracted increasing attention in militarily. The two-dimensional transition metal carbide/nitride (MXene)-based film have been developed in IR stealth due to the low IR emissivity. However, the adjusting thermal camouflage is still a great challenge. In this study, we successfully fabricated a sandwich-structured MXene-ANF-MXene nanocomposite film by the vacuum-assisted filtration process. The composite film displayed remarkable infrared stealth performance of large reduction in radiation temperature. The lowest IR emissivity was 0.21. Additionally, adjusting infrared disguise and temperature modulation of the film were achieved by a stable and reliable Joule heating capability. The resulting composite film also exhibited multifunctionality including an impressively high electromagneticinterference(EMI) shielding efficiency of up to 56.2 dB, excellent mechanical properties, flame retardancy, and hydrophobicity. This work offers a simple avenue for preparing multifunctional sandwich-structured composite film by vacuum-assisted filtration method, demonstrating the great promise of MXene film for multifunctional application.

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用于调整红外线伪装和多功能应用的柔性夹层结构 MXene-Aramid 纳米纤维-MXene 薄膜

随着红外探测技术的飞速发展，红外伪装在军事上越来越受到重视。基于二维过渡金属碳化物/氮化物（MXene）的薄膜由于具有较低的红外发射率，在红外隐身方面得到了发展。然而，如何调整热伪装仍然是一个巨大的挑战。在这项研究中，我们采用真空辅助过滤工艺成功制备了一种夹层结构的 MXene-ANF-MXene 纳米复合薄膜。该复合薄膜具有显著的红外隐身性能，辐射温度大幅降低。最低红外发射率为 0.21。此外，通过稳定可靠的焦耳加热能力，还实现了薄膜的红外伪装和温度调节。由此产生的复合薄膜还具有多功能性，包括令人印象深刻的高达 56.2 dB 的电磁干扰（EMI）屏蔽效率、优异的机械性能、阻燃性和疏水性。这项研究为利用真空辅助过滤法制备多功能夹层结构复合薄膜提供了一种简单的途径，证明了 MXene 薄膜在多功能应用方面的巨大前景。

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.