| 초록 |
Contact angle and adhesion of water-droplet were controlled onto artificially textured polymer films via imprinting various polymer sheets with a single anodized aluminum oxide (AAO) platform, which contained hexagonally-packed nanopore arrays with a fixed pore distance, diameter, and depth. The penetration depths of softened polymers into the pores could be controlled via changing temperature and pressure. After removing the treated polymer sheets from the AAO template by either physically peeling-off or chemically etching, various types of the nanostructures could be introduced on the AAO-treated polymer films. The polymer nanodomains showed nanorod, nanopillar, and nanohairs, depending on the fabrication method. The corresponding polymer sheets showed wide ranges of water contact angles from 60° to above 150° (known as a critical angle for superhydrophobic surface character). |
