Electroless plating of Cu–Ni–P alloy on PET fabrics and effect of plating parameters on the properties of conductive fabrics

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• 作者：Xueping Gan ; Yating Wu ; Lei Liu ; Bin Shen ; Wenbin Hu
• 关键词：Electroless plating ; Cu– ; Ni– ; P alloy ; PET fabric ; Deposition rate ; Crystal structure ; Surface morphology ; Surface resistance ; Shielding effectiveness
• 刊名：Journal of Alloys and Compounds
• 出版年：2008
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：8 May 2008
• 卷：455
• 期：1-2
• 页码：308-313
• 文件大小：766 K

摘要

Electroless plating of Cu–Ni–P alloy on polyethylene terephthalate (PET) fabrics and effect of plating parameters on the properties of alloy-coated fabrics were investigated. The deposition rate increased with the increase of temperature, pH and nickel ion concentration. The addition of K₄Fe(CN)₆ to the solution could reduce the deposition rate and make the deposits become more compact. The color of the deposits also had a corresponding improvement, changing from dark-brown to copper-bright with the addition of K₄Fe(CN)₆ to the plating solution. The deposits have an intensified copper (1 1 1) plane orientation with the addition of K₄Fe(CN)₆ to the plating bath. The surface electrical resistance of alloy-coated fabrics increased with increase of nickel ions concentration in the solution. The addition of K₄Fe(CN)₆ to the solution reduced significantly the surface resistance of alloy-coated fabrics. The conductive fabrics with high shielding effectiveness could be prepared at the optimum condition with 0.0038 M nickel ions and 2 ppm K₄Fe(CN)₆. As the deposit weight on the fabric was 40 g/m², the shielding effectiveness of alloy-coated fabrics was more than 85 dB at frequency ranging from 100 MHz to 20 GHz.