Drying, Coating & Printing
We study how colloids pack each other and leave a specific pattern, which can be changed by the surface condition of colloids and working fluid. We focus on optimizing the coating solution system to obtain a uniform pattern. Additionally, we endeavor to develop a novel control coating method, in particular ordered versus disordered packing structures. Our coating method can be applied to the organic or inorganic materials coating or printing technologies. Furthermore, to combine our developed model and 2D or 3D printing technologies, we will construct a printing system for mass production manufacturing.
A single monolayer coating of colloidal particles is extensively studied over last several decades. However, to stack multiple layers of particles with a uniform thickness is still lacking and the fabrication process can be typically complex. Here, we study how condensed colloidal particles uniformly coat on a substance with a single-step coating method. We expect this coating method can be used for ink-jet printing and 3D-printing technologies. We are also interested in manipulating packing shape of the colloidal structure using physico-chemical effects. The detail research results would be described in the near future.