抄録
Enhancement of hydrophobicity by a roughness mixture was investigated on two different model structures. A two-dimensional particle array and commercial embossed film were employed as a bottom rough surface, and a colloidal silica-fluoropolymer composite was coated on these surfaces. Both model surfaces became superhydrophobic by the roughness mixture. These results were quantitatively analyzed based on their surface morphology. The hydrophobicity enhancement was explained by an effective increase of the solid-air interface area.