纳米镍胶体的制备及其在织物化学镀活化中的应用

在酸性条件下，以聚乙烯吡咯烷酮(PVP)为稳定剂，用次亚磷酸钠液相还原硫酸镍，制备出纳米镍胶体，并把该胶体应用于织物化学镀铜的活化工序。用透射电镜(TEM）、扫描电子显微镜( SEM)及X射线衍射仪对该胶体及活化前后织物的进行了表征，结果表明：所得纳米镍胶体成分纯净，粒径分布均匀；浸渍了该镍胶体的织物可以在以甲醛为还原剂的化学镀液中顺利起镀。

Preparation of nano-nickel colloid and its application to activation of electroless plating of fabrics

Under acidic conditions，the nano-nickel colloid was prepared by reduced nickel sulfate with sodium hypophosphite in liquid phase with polyvinylpyrrolidone (PVP) as stabilizer. Then the nano-nickel colloid was used in the activation process of the fabric electroless plating copper. The phase structure, morphology and distribution were characterized by X-ray diffraction (XRD)，scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The test results showed that the nano-nickel colloid has pure composition and uniform particle size distribution，the it is effective for the activation of the fabric electroless plating copper used formaldehyde as a reducing agent.