CAJ | 학술논문

采用机械球磨法制备片状银粉，通过扫描电镜(SEM)、激光粒度分析仪和热重分析仪表征了银粉的形貌、粒度及纯度，研究球磨介质、球磨时间以及球磨前驱体球形银粉的形貌对片状银粉形貌及粒度的影响。结果表明，以乙醇为球磨介质，球磨时间为15 h，并采用粒径均一的球形银粉为球磨前驱体，能够机械球磨制备片状率高，粒径大小在4~6μm且均匀的片状银粉。将片状银粉配制成银胶，印刷并固化成线路后，测试了其电导率，达到了应用指标。
채용궤계구마법제비편상은분，통과소묘전경(SEM)、격광립도분석의화열중분석의표정료은분적형모、립도급순도，연구구마개질、구마시간이급구마전구체구형은분적형모대편상은분형모급립도적영향。결과표명，이을순위구마개질，구마시간위15 h，병채용립경균일적구형은분위구마전구체，능구궤계구마제비편상솔고，립경대소재4~6μm차균균적편상은분。장편상은분배제성은효，인쇄병고화성선로후，측시료기전도솔，체도료응용지표。
The flake silver powders were prepared by mechanical ball milling, and then characterized by the scanning electron microscopy (SEM), thermo-gravimetric analyzer and laser particle size analyzer. Effects of preparative conditions on the physical performance of resulting flake silver powders were also investigated. The flake silver powders with a high flaky rate and an even particle size of 4~6 μm could be prepared, when ethanol was used as the milling medium, milling time was 15 h and the spherical silver powders with an even particle size were chosen as a precursor. Finally, the flake silver powders were fabricated into conductive adhesive according to the formulation and solidified to an electronic circuit. Its electrical conductivity conformed to the application standard.