A sandwich-structured ultra-flexible Pva-co-PE/Cu nanofiber composite film with excellent electrical conductivity, electromagnetic shielding properties, and environmental stability
A sandwich-structured ultra-flexible Pva-co-PE/Cu nanofiber composite film with excellent electrical conductivity, electromagnetic shielding properties, and environmental stability
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具有优异导电性、电磁屏蔽性能和环境稳定性的三明治结构超柔性Pva-co-PE/Cu纳米纤维复合薄膜
DOI：
10.1016/j.colsurfa.2022.130329
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发表时间：
2023-01
期刊：
影响因子：
--
通讯作者：
Dong Wang
中科院分区：
文献类型：
--
作者：
Xin Wen;Chenguang Yang;Zhiyao Li;Ming Xia;Yi Wu;Kun Yan;Dong Wang
采用等离子体诱导法制备了一种具有超柔性、低电阻率、疏水性和电磁屏蔽性能的覆铜薄膜，该薄膜具有良好的柔性、低电阻率和电磁屏蔽性能，在可穿戴电路基板中具有潜在的应用前景。采用等离子体辐照诱导法在聚乙烯醇乙烯共聚物（PVA-co-PE）纤维膜上接枝丙烯酸，并通过银离子与羧酸粒子的静电配位作用将银离子负载到纤维膜表面。然后通过化学还原反应在纤维膜表面沉积铜，得到柔性覆铜膜。所得柔性覆铜薄膜的电阻率仅为42.7 μΩ·cm，与导体的电阻率相当。薄膜的电磁干扰性能在55 dB以上，具有良好的疏水性（150.6°）。经过100次压缩循环后，柔性覆铜薄膜仍具有优异的性能。该柔性覆铜薄膜具有超稳定性，在即将推广的柔性智能穿戴领域具有广阔的应用前景。
A sandwich-structured ultra-flexible copper clad film based on nanofiber film has been successfully prepared via plasma induction, which combines super flexibility, low resistivity, hydrophobicity and outstanding electromagnetic shielding properties with potential applications in wearable circuit substrate boards. Acrylic acid was grafted onto Pva-co-PE nanofiber film by plasma irradiation induction, and silver ions were loaded on the surface of fiber film by electrostatic coordination between silver ions and carboxylic acid particles. Then copper was deposited on the surface of fiber film by chemical reduction reaction to obtain flexible copper-clad film. The resistivity of the obtained flexible copper-clad film is only 42.7 μΩ*cm, which is as good as that of the conductor. The EMI performance is above 55 dB, and the film has good hydrophobicity (150.6°). After 100 cycles of compression, the flexible copper-clad film still possessed outstanding performance. The flexible copper-clad film exhibited super stability and had broad application prospect in the flexible intelligent wearable field that will be popularized soon.
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