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

IF 26.6 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2024-12-03 DOI:10.1007/s40820-024-01590-3

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

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Abstract

Highlights

Hierarchical polyimide (PI) nonwoven fabric is fabricated by alkali treatment, in-situ growth of magnetic particles, and "self-activated" electroless Ag plating process.
Impedance matching structure by assembling Fe₃O₄/Ag-loaded PI nonwoven fabric (PFA) and pure Ag-coated PI nonwoven fabric (PA) induces more electromagnetic waves enter PFA/PA and be dissipated.
The fluffy 3D space structure of PFA with strong adhesion interaction and low infrared emissivity of PA endow PFA/PA with excellent thermal stability in electromagnetic interference shielding and high-temperature resistant infrared stealth performance.

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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非织造布

采用碱处理、原位生长磁性粒子和“自激活”化学镀银工艺制备了分层聚酰亚胺（PI）非织造布。将Fe3O4/ ag负载PI无纺布（PFA）与纯ag包覆PI无纺布（PA）组装成阻抗匹配结构，可以诱导更多的电磁波进入PFA/PA并被耗散。PFA蓬松的三维空间结构具有较强的粘附相互作用和较低的红外发射率，使PFA/PA在电磁干扰屏蔽和耐高温红外隐身性能方面具有优异的热稳定性。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.