摘要
采用KH550改性、SnCl_2敏化和PdCl_2活化尼龙12(PA12)粉体,结合化学镀工艺制备Ni颗粒/PA12复合粉体。借助扫描电镜、热重、X射线衍射等分析手段,研究PA12粉体表面催化位点(活性基团、Sn粒子和Pd粒子)的结构特性对镍镀层结构特性的影响规律。结果表明:PA12粉体表面活性基团、Sn粒子和Pd粒子均可催化诱导化学镀镍,且镀层结晶特性依次增加,镍颗粒的沉积量分别为1%、12%和25%,镍颗粒平均粒径分别为390 nm、95 nm和289 nm,只有Pd粒子催化可在PA12粉体表面制备致密镀层。
In this work, the electroless nickel plating on Nylon 12 (PA12) powder surface was developed based on 3-aminopropyltriethoxysilane modification, SnCl2 sensitization and PdCl2 activization. Effect of PA12 surface structural properties (active group, Sn particle and Pd particle) on structural properties of nickel-plated coating were investigated using scanning electron microscopy, X-ray diffraction and thermal analysis. Results showed that active group, Sn particle and Pd particle can catalyze the electroless nickel plating on the PA12 surface. It can enhance the crystallinity of nickel-plated coating, Ni-particle content were 1%,12% and 25%, average Ni-particle size of plating coating were 390 nm,95 nm and 289 nm. Only when the catalytic particle is Pd particle, Ni particles can fully covered on PA12 surface.
作者
姚晨光
桂成梅
YAO Chen-guang;GUI Cheng-mei(Shanghai Genius Advanced Materials Co. Ltd., Shanghai 201109, China;School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China)
出处
《安徽化工》
CAS
2019年第2期66-69,共4页
Anhui Chemical Industry
关键词
尼龙12
化学镀
催化
镍
nylon 12
electroless plating
catalytic
nickel