| 摘要 |
Provided is a method for preparing copper nano-ink, wherein one can adjust concentration and sizes of copper nano-particles dispersed in ink and prevent generation of waste water which is caused by a neutralization, dehydration and cleaning process. A method for preparing copper nano-ink comprises the following steps: inputting and mixing a polymer dispersant and copper nitrate in deionized water to prepare a mixture wherein copper ions are dispersed(S101,S102); heating the mixture to remove NOx gas(S103); inputting an organic reductant into the heated mixture and adjusting pH in order to reduce the copper ions(S104); and maintaining the reaction for a predetermined time to control the sizes of the copper nanoparticles(S105). |
