1524 テクスチャによる固体表面の濡れ性制御に関する研究

抄録

The effect of texture, defined as periodic microstructure, on dynamic wettability was investigated. Various textures that consist of lattice-aligned pillars of 1 to 64μm in diameter and 0.1 to 8μm in height were prepared with dry etching of silicon substrate. It was found that there are two kinds of tendency. In case the air is trapped between the pillars, the narrower pillar-pitch makes the wettability lower. On the other hand, in the case the air is not trapped, the higher and narrower pillar-pitch makes the wettability higher. Thus, by choosing appropriate pillar height and pitch, the wettability can be controlled.