Abstract: In the process of traditional electroless plating of fabric，activation and sensitization in two steps are needed to form the catalyst，palladium，on the surface of fabric，leading to complex technology，difficulty in quality control of fabric and consumption of a great deal of tin（Ⅱ）chloride and acid.In this paper，polyvinyl pyrrolidone（PVP）-Pd colloid activation in one step substituted the activation and sensitization in two steps in traditional electroless plating.The preparation technology of PVP-Pd colloid was investigated with UV spectra.The dispersivity of PVP-Pd colloid was studied with transmission electron microscopy（TEM），and the surface morphology of fabric was observed with scanning electron microscopy（SEM）.The experimental results showed that PVP-Pd colloid had perfect dispersivity and could be applied to electroless plating successfully，to optimize the technology，reduce cost and obtaining the nickel plated fabric with excellent electrical conductivity and electromagnetic shielding performance.

摘要： 传统的织物化学镀工艺中，在织物表面形成贵金属钯催化剂需要敏化和活化两道工序，工艺复杂，质量不易控制，消耗大量的氯化亚锡和酸.本文研究探索用聚乙烯吡咯烷酮（PVP）-Pd溶胶活化一步法工艺取代传统化学镀敏化、活化两步法工艺，用紫外光谱法研究了PVP -Pd溶胶的制备条件，用 TEM观察了PVP-Pd溶胶的分散性，用SEM观察了施镀前后织物表面的形态.实验结果表明，PVP-Pd溶胶分散性良好，可成功应用于织物化学镀，优化了工艺，降低了成本，制得镍镀织物具有优良的导电和电磁屏蔽性能.