纳米铜粉的制备--从PCB碱性蚀刻废液回收方法研究

摘要

The paper describes the preparation of copper nanoparticles by using the alkaline etching wastewater via chemical reduction method. Using potassium borohydride as a reducing agent and polyvinylpyrrolid one(PVP), hexadecytrimethyl ammonium(CTAB) as a protective agent and dispersant in the experiment. It obtained that the best condition of synthesis of nano-copper:reduction temperature is 60℃, reduction time is 60min, ratio of PVP and CTAB is 1:5 though these experiments, size of nano-copper is below 100nm.%　　利用碱性蚀刻废液通过化学还原的方法制备纳米铜粉。在碱性条件下用NaBH4作还原剂；表面分散剂和保护剂用聚乙烯比咯烷酮(PVP)、十六烷基三甲基溴化铵(CTAB)；研究结果表明，用碱性蚀刻废液制备纳米铜最佳的条件为：反应温度60℃，反应时间60 min，PVP与CTAB的用量为1：5，制备出来的纳米铜粉为单质铜，颗粒粒径在100nm以内。