A Flexible Electromagnetic Interference Shielding Fabric Prepared by Construction of PANI/MXene Conductive Network via Layer‐by‐Layer Assembly
A Flexible Electromagnetic Interference Shielding Fabric Prepared by Construction of PANI/MXene Conductive Network via Layer‐by‐Layer Assembly
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DOI：
10.1002/admi.202001893
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发表时间：
2021-01
影响因子：
5.4
通讯作者：
G. Yin;Yu Wang;Wen Wang;Zhongji Qu;Dan Yu
中科院分区：
文献类型：
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作者：
G. Yin;Yu Wang;Wen Wang;Zhongji Qu;Dan Yu
设计并开发了具有较高电磁干扰防护性能和穿着舒适性的电磁屏蔽纺织品。将一维聚苯胺纳米线和二维过渡金属碳化物/碳氮化物纳米片通过层层组装(L-b-L)的方法加载到碳纤维织物上，形成功能层，然后在聚二甲基硅氧烷上进行涂层。所得织物的导电率为≈325 S m−1，电磁屏蔽效能≈为35.3dB，厚度仅为0.376 mm。利用薄膜的疏水效应，获得了135.2°大接触角的自清洁性能。此外，良好的灵活性、透气性(346 mm S−1)和热管理进一步拓宽了实际应用领域。本工作可为下一代电磁屏蔽材料的综合性能提供一种新的解决方案。
The electromagnetic interference (EMI) shielding textiles accomplishing high‐level EMI protective performance and wear comfort has been designed and developed. 1D polyaniline nanowires and 2D transition metal carbide/carbonitride nanosheets are loaded on the carbon fiber fabric via a layer‐by‐layer (L‐b‐L) assembly approach to fabricate a functional layer and followed with a polydimethylsiloxane (PDMS) coating. The resultant fabric exhibits a high electrical conductivity of ≈325 S m−1 and the EMI shielding effectiveness ≈35.3 dB with only 0.376 mm thickness. Benefiting from the hydrophobic effect of thin PDMS film, a satisfactory self‐cleaning performance with a large contact angle of 135.2° is achieved. Furthermore, favorable flexibility, air permeability (346 mm s−1), and thermal management further broaden the field of practical application. This work can provide a new solution for next‐generation EMI shielding materials in view of the comprehensive performance.