摘要
采用化学镀法(镀液中加入适量的稀土镧)在硅烷偶联剂改性后的腈纶纤维表面沉积金属银,由粒径分析、X射线衍射、扫描电子显微镜、阴极极化曲线以及循环伏安曲线等方法对其进行表征,研究了硝酸镧对化学镀银沉积速度、镀层质量和电化学性能的影响。结果表明,镀银液中加入适宜的硝酸镧,银的沉积速率和腈纶纤维表面银镀层的表面质量均有不同程度的提高。电化学测试表明,镀银液中增大硝酸镧的浓度(0～0.01 g/L),阴极极化曲线极化度增大,氧化还原峰的电流上升,电沉积的速度加快。
Modified by silane coupling agents, polyacrylonitrile （PAN） fiber was deposited with silver by electroless plating with solution containing rare earth lanthanum. The grain size of the silver particle, the crystal structure and surface morphology of the silver-coated fiber film, and the electrochemical property of the plating solution were characterized by nano particle sizer （Nano-ZS）, X-ray diffraction （XRD）, scanning electron microscopy （ SEM）, cathodic polarization curves, and cyclic voltammetry （ CV）, respectively. The effects of lanthanum nitrate on the speed of plating, quality of the silver film and electrochemical property of the plating solution were analyzed. The results showed that the speed of metallic ion depositing and the quality of the silver-coated fiber film were improved with the addition of appropriate amount of lanthanum nitrate in the plating solution. With the concentration of lanthanum nitrate increase from 0 g/L to 0. 01 g/L in the plating solution, the polarization degree was increased, and the redox current peak and the speed of metallic ion deposition were also increased.
出处
《应用化学》
CAS
CSCD
北大核心
2013年第5期590-595,共6页
Chinese Journal of Applied Chemistry
关键词
腈纶纤维
化学镀银
硝酸镧
电化学性能
polyacrylonitrile fiber, electroless silver plating, lanthanum nitrate, electrochemical property
作者简介
通讯联系人：王炜，教授；Tel：021-67792456；E-mail：wangv@dhu．edu．cn；研究方向：纺织品功能整理，电磁屏蔽织物的研制
