涤纶织物上激光诱导沉积银粒子活化种用于化学镀铜的研究

Study on silver particles obtained by laser-induced deposition as an activator for electroless copper plating on polyester fabric

用激光辐射预先经聚乙烯吡咯烷酮(PVP)–AgNO_3胶体溶液处理的涤纶织物,在涤纶织物表面制备出银纳米粒子,再以银纳米粒子为活化点成功地催化织物进行化学镀铜。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和原子力显微镜(AFM)对涤纶织物表面上银粒子的形态、结构和粒径分布进行了表征,探讨了PVP在激光诱导银粒子沉积过程中的保护作用。激光辐射能有效地将涤纶织物表面的Ag^+还原成金属Ag纳米粒子。在激光辐射过程中,PVP能保护银粒子并起到辅助还原作用。适宜的PVP与AgNO_3的质量比为2∶1。在银粒子的催化作用下,涤纶织物表面能够顺利进行化学镀铜而得到均匀分布的铜沉积层。

Silver nanoparticles were deposited on the surface of polyester fabric pretreated by polyvinyl pyrrolidone（PVP）– AgNO3 colloid solution under laser irradiation. Electroless copper plating was successfully conducted on the surface of polyester fabric under the catalysis of the silver nanoparticles as activator. The configuration, structure and particle size distribution of silver particles deposited on the surface of polyester fabric were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, and atomic force microscopy（AFM）. The protection effect of PVP on silver particles during the laser-induced deposition process was discussed. The Ag~＋ ions on the surface of polyester fabric can be effectively reduced to metal Ag nanoparticles under laser irradiation. PVP has not only a protective effect on silver particles but also an auxiliary effect on the reduction of silver ions during the laser irradiation deposition process. The suitable mass ratio of PVP to AgNO3 is 2：1. Electroless copper plating is successfully conducted and a uniformly distributed copper coating can be obtained on the surface of polyester under the catalysis of silver nanoparticles.