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

• DOI: 10.1007/s40820-024-01590-3
• Publication Date: 2024-12-03T07:22:05Z
• Authors: Xinwei Tang; Yezi Lu; Shuangshuang Li; Mingyang Zhu; Zixuan Wang; Yan Li; Zaiyin Hu; Penglun Zheng; Zicheng Wang; Tianxi Liu
• Keywords: Nonwoven fabric

Abstract Designing and fabricating a compatible low-reflectivity electromagnetic interference (EMI) shielding/high-temperature resistant infrared stealth material possesses critical significance in the field of military. Hence, hierarchical polyimide (PI) nonwoven fabric is fabricated by alkali treatment, in-situ growth magnetic particles "self-activated" electroless Ag plating process. Especially, impedance matching can be constructed systematically assembling Fe 3 O 4 /Ag-loaded PI (PFA) pure Ag-coated (PA), endowing it with an ultralow-reflectivity EMI shielding performance. In addition, thermal insulation fluffy three-dimensional (3D) space structure PFA low emissivity PA originated from bring excellent More importantly, strong bonding interaction between , Ag, fiber improves stability high-temperature Such comprehensive performance makes promising for military tents to protect internal equipment stemmed adjacent and/or enemy, inhibit external detection.