Wetting of Inkjet Polymer Droplets on Porous Alumina Substrates.

摘要: The resolution of inkjet printing technology is determined by wetting and evaporation processes after the jet drop contacts substrate. Here, different picoliter solubilized polymer droplets jetting onto one-end-closed porous alumina was investigated. selected polymers are commonly used in ink. synergistic effects hierarchical structure substrate surface modification were to control behavior polymer-based ink drops. A model that invokes effect tension applied calculate amount solution penetrating into pores. calculation corroborates experimental observations shows volume pores increases with an increase pore radius depth, resulting less remaining on surface. coupled intrinsic properties modifications all contribute can be achieved via printing.