Orthogonal Experimental Study of Aerosol Printing Parameters of Nanoparticles
In order to solve the problems of stringent ink storage conditions,overspray and satellite droplets in aerosol printing technology based on conductive ink,a nanoparticle aerosol printing technology was proposed.The technology used nano silver powder as printing material,and used gas kinetic energy to spray and deposite nanoparticles uniformly and accurately on the substrate.Using a physical modeling approach,the effects of experimental factors such as carrier gas flow rate,printing speed,sheath gas flow rate and number of printing layers on the morphology of conductive silver lines were analyzed.Orthogonal experiment was designed to investigate the influence of different experimental factors on the printing process and verify the influence law of different experimental factors on the morphology of conductive silver lines.The conductive silver lines were sintered,and the changes of resistance and resistivity before and after sintering were analyzed.The experimental results show that the carrier gas flow rate and the number of printing layers have great influence on the morphology of conductive silver lines,while the printing speed and sheath gas flow rate have little influence.After sintering,the resistance value and resistivity of the conductive silver wire decreased significantly,and the minimum resistivity of the printed conductive silver lines is 10.47 pΩ·cm,which is about 6.62 times that of the silver resistivity.
万方数据
维普
