The impact of surface properties of polymeric substrates on the nano-behavior

摘要

The aim of this paper is analysis of the nano-ink behavior onto the polymeric substrates' surfaces immediately after the sintering process. For this reason, three types of commonly used polymeric substrates for inkjet printing technology, polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and polyimide (PI) were analyzed. The impact of the surfaces' temperature on the ink spreading was mainly analyzed by using the microscopic methods. The roughness of the surfaces has a significant impact on to the properties of deposited silver layer, such as the adhesion mechanism, ink spreading, the shape of the deposited structure and also the thickness of layer. The higher temperature of substrate causes the fast evaporation process of the ink onto the substrates surface as well as causes the viscosity decreasing of the nano-ink. For this purpose, 2 silver based nano-inks were deposited by inkjet printer Jetlab 4×l-A with orifice diameter 70 μm. The main benefit of this paper lays in the optimizing of the spreading effect of several silver based nano-inks through the surface temperature changes and investigation of the deposited structures' shapes after the sintering.