ULTRA-WATER-REPELLENT SUBSTRATE

摘要

The present invention provides a super-hydrophobic substrate that includes a substrate; an undercoating film formed on the substrate having minute recesses and projections in its surface; and a hydrophobic film formed on the minute recesses and projections. The surface shape of the hydrophobic film reflects the minute recesses and projections. A contact angle CA and a tumbling angle TA of a water droplet on the surface of the hydrophobic film satisfy relationships: CA≥150 DEG and TA≤15 DEG or 150 DEG > CA≥145 DEG and TA≤5 DEG .