The metal coated textiles and polymer films have become increasingly important in view of electromagnetic interference (EMI) shielding. In this study, we propose a simple underwater plasma system for direct coating of copper nanoparticles on textiles and polymer films to intercept electromagnetic wave. The proposed system can synthesize copper nanoparticles and coat it on substrate at once. We analyzed the characteristics of coating layer in order to optimize coating fabrication. When the copper nanoparticles were coated using optimized condition, the thickness of coating layer is about 1 μm and sheet resistance is about 95.44 mΩ/sq. The improved conductivity of polyimide film and nonwoven fabric significantly contributed to effective shielding of electromagnetic interference measured at 38.83 and 82.31 dB in frequency from 1 to 10 GHz.

考虑到电磁干扰（EMI）屏蔽，金属涂覆的纺织品和聚合物膜变得越来越重要。在这项研究中，我们提出了一种简单的水下等离子体系统，该系统可将铜纳米粒子直接涂覆在纺织品和聚合物薄膜上以拦截电磁波。所提出的系统可以合成铜纳米颗粒，并立即将其涂覆在基材上。我们分析了涂层的特性，以优化涂层的制造。当使用优化条件涂覆铜纳米颗粒时，涂层的厚度为约1μm，薄层电阻为约95.44mΩ/ sq。聚酰亚胺薄膜和非织造布的导电性的改善大大有助于有效屏蔽电磁干扰，在1至10 GHz的频率下测得的电磁干扰为38.83 dB和82.31 dB。