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具有超低反射率电磁干扰屏蔽和耐高温红外隐身性能的分层聚酰亚胺无纺布

Hierarchical Polyimide Nonwoven Fabric with Ultralow-Reflectivity Electromagnetic Interference Shielding and High-Temperature Resistant Infrared Stealth Performance.

作者信息

Tang Xinwei, Lu Yezi, Li Shuangshuang, Zhu Mingyang, Wang Zixuan, Li Yan, Hu Zaiyin, Zheng Penglun, Wang Zicheng, Liu Tianxi

机构信息

The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.

Jiangsu Ferrotec Semiconductor Technology Co., Ltd., Yancheng, 214000, Jiangsu, People's Republic of China.

出版信息

Nanomicro Lett. 2024 Dec 3;17(1):82. doi: 10.1007/s40820-024-01590-3.

DOI:10.1007/s40820-024-01590-3
PMID:39625547
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11615167/
Abstract

Designing and fabricating a compatible low-reflectivity electromagnetic interference (EMI) shielding/high-temperature resistant infrared stealth material possesses a critical significance in the field of military. Hence, a hierarchical polyimide (PI) nonwoven fabric is fabricated by alkali treatment, in-situ growth of magnetic particles and "self-activated" electroless Ag plating process. Especially, the hierarchical impedance matching can be constructed by systematically assembling FeO/Ag-loaded PI nonwoven fabric (PFA) and pure Ag-coated PI nonwoven fabric (PA), endowing it with an ultralow-reflectivity EMI shielding performance. In addition, thermal insulation of fluffy three-dimensional (3D) space structure in PFA and low infrared emissivity of PA originated from Ag plating bring an excellent infrared stealth performance. More importantly, the strong bonding interaction between FeO, Ag, and PI fiber improves thermal stability in EMI shielding and high-temperature resistant infrared stealth performance. Such excellent comprehensive performance makes it promising for military tents to protect internal equipment from electromagnetic interference stemmed from adjacent equipment and/or enemy, and inhibit external infrared detection.

摘要

设计和制造一种兼容的低反射率电磁干扰（EMI）屏蔽/耐高温红外隐身材料在军事领域具有至关重要的意义。因此，通过碱处理、磁性颗粒的原位生长和“自活化”化学镀银工艺制备了一种分级聚酰亚胺（PI）无纺布。特别是，通过系统地组装负载FeO/Ag的PI无纺布（PFA）和纯Ag涂层的PI无纺布（PA）可以构建分级阻抗匹配，赋予其超低反射率的EMI屏蔽性能。此外，PFA中蓬松三维（3D）空间结构的隔热性能以及PA中源于镀银的低红外发射率带来了优异的红外隐身性能。更重要的是，FeO、Ag和PI纤维之间的强键合相互作用提高了EMI屏蔽中的热稳定性和耐高温红外隐身性能。这种优异的综合性能使其有望应用于军事帐篷，以保护内部设备免受相邻设备和/或敌人产生的电磁干扰，并抑制外部红外探测。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/9db06da070b8/40820_2024_1590_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/88094d605a7b/40820_2024_1590_Sch1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/ff0a9531a088/40820_2024_1590_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/39676b01bbce/40820_2024_1590_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/283d229115f0/40820_2024_1590_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/453972bfa254/40820_2024_1590_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/25460bb15865/40820_2024_1590_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/aa1d0f5300ae/40820_2024_1590_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/9db06da070b8/40820_2024_1590_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/88094d605a7b/40820_2024_1590_Sch1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/ff0a9531a088/40820_2024_1590_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/39676b01bbce/40820_2024_1590_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/283d229115f0/40820_2024_1590_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/453972bfa254/40820_2024_1590_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/25460bb15865/40820_2024_1590_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/aa1d0f5300ae/40820_2024_1590_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/982b/11615167/9db06da070b8/40820_2024_1590_Fig7_HTML.jpg

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