METHOD FOR MANUFACTURING A SUPERHYDROPHOBIC FILM SHEET

摘要

The present invention relates to a method for manufacturing a superhydrophobic film sheet, and more particularly, to a method for manufacturing a superhydrophobic film sheet by generating a structure having projections for providing a superhydrophobic effect such as that of a real lotus leaf by controlling the number of times, and the amount of time, a photoresist is baked and providing a superhydrophobic surface by coating a polydimethylsiloxane (PDMS) with a transparent material having hydrophobic qualities. The method comprises the steps of: (a) cleaning a surface of a silicon wafer; (b) coating the top of the silicon wafer with a photoresist (AZ4620) using a spin coater, and soft-baking the silicon wafer in an oven; (c) exposing a structure manufactured in step (b) using a mask aligner; (d) developing using a photoresist developing solution(AZ400K); (e) performing PDMS molding on a top of a structure manufactured in step (d); and (f) removing the photoresist (AZ4620) using acetone, thereby completing a superhydrophobic film sheet having projections on an end thereof.