高径厚比片状银粉的制备

摘要

The ultrafine silver powders were prepared by chemical reduction with hydrazine ( N2H4 · H2 O ) , the flake silver powders were producted with different ball milling methods. By comparing the performance of flake silver powders, it is found that the flake silver powders with thickness < 100 nm and diameter - thickness ratio >50: 1 can be prepared by using wet ball milling. These flake silver powders have good conductivity in the paste application.%用水合肼( N2H4·H2O)化学还原制备超细银粉,将超细银粉用不同的球磨方法制备成片状银粉.通过片状银粉的性能对比发现,采用湿法球磨可以制备出厚度＜100nm、径厚比＞50∶1的片状银粉,在浆料应用中银粉有较好的导电性能.