金刚石与磨料磨具工程2024，Vol.44Issue(3)：304-308,5.DOI:10.13394/j.cnki.jgszz.2024.0007
金刚石颗粒表面镍镀层化学改性研究
Research on chemical modification of nickel coating on diamond particles surface
邹余耀 1田晓庆 1高传平 1韩国志2
作者信息
- 1. 江苏三超金刚石工具有限公司,江苏 句容 212400
- 2. 江苏三超金刚石工具有限公司,江苏 句容 212400||南京工业大学 化学与分子工程学院,南京 211816
- 折叠
摘要
Abstract
A new nickel plating process for diamond wire is explored to eliminate the negative impact of dispersants on the production process of diamond wires.The surface of of Ni-plated diamond particles was first hydroxylated with hy-drogen peroxide,and then reacted with dimethyloctadecyl[3-trimethoxysilylpropyl]ammonium chloride to prepare pos-itively charged diamond particles.Finally,the preparing process of diamond wires were optimized.Results show that the surface potential of diamond particles increases from-7.50 mV to 14.10 mV or above after reaction,up to 30.68 mV.The best preparing conditions are as follows:The mass ratio of raw sand to hydrogen peroxide is 2 to 1,with treat-ing time of 1 h;The mass ratio of diamond particles to quaternary ammonium salts is 1 to 2,with treating time of 4 h.In the electroplating process,the diamond particles with chemically modified surface would uniformly migrate towards the cathode without dispersants,the sanding capacity of which could be increased by 20%or more.关键词
金刚线/镍镀层/化学修饰/电镀Key words
diamond wire/nickel coating/chemical modification/electroplating分类
通用工业技术引用本文复制引用
邹余耀,田晓庆,高传平,韩国志..金刚石颗粒表面镍镀层化学改性研究[J].金刚石与磨料磨具工程,2024,44(3):304-308,5.
