【摘要】 研究了一种新颖的球形铜粉制备方法,即先用葡萄糖还原法制备球形超细Cu2O粉末,然后用氢气还原Cu2O粉末制备球形铜粉。用葡萄糖还原Cu(Ⅱ)可以制备球形的Cu2O粒子。在240℃下用氢气还原球形Cu2O粉末,得到了分散性良好的球形铜粉,铜粉具有良好的导电性和稳定性。铜粉粒径大小和粒径分布取决于前驱体Cu2O粒子的大小和粒径分布。还原后的粉末粒径略有收缩,平均粒径为1.18μm,振实密度为2.1g/ml。更多还原

【Abstract】 A novel process has been developed for the production of spherical copper powder.First,spherical ultrafine cuprous oxide powder was produced via glucose reduction,and then H2 was used to reduce cuprous oxide to prepare spherical ultrafine copper powder.Well dispersed spherical copper powder,with high conductivity and stability,was produced by reducing spherical cuprous oxide at 240℃.Its particle size and distribution were decided by precursor cuprous oxide powder.The powder particle shrank slightly after reduction,the mean particle size is 1.18μm,and the tap density is 2.1g/cm3.更多还原