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Hierarchical Polyimide Nonwoven Fabric with Ultralow-Reflectivity Electromagnetic Interference Shielding and High-Temperature Resistant Infrared Stealth Performance
Nano-Micro Letters ( IF 31.6 ) 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

  • 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.



中文翻译:


具有超低反射率电磁干扰屏蔽和耐高温红外隐身性能的多级聚酰亚胺无纺布



  • 多级聚酰亚胺 (PI) 无纺布是通过碱处理、磁性颗粒原位生长和“自激活”化学镀银工艺制成的。


  • 通过组装 Fe3O4/Ag 负载的 PI 无纺布 (PFA) 和纯 Ag 涂层的 PI 无纺布 (PA) 的阻抗匹配结构,感应出更多的电磁波进入 PFA/PA 并被消散。


  • PFA 蓬松的 3D 空间结构具有较强的粘附相互作用和 PA 的低红外发射率,使 PFA/PA 在电磁干扰屏蔽方面具有优异的热稳定性和耐高温的红外隐身性能。

更新日期:2024-12-03
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