Superhydrophobic film with Surface Pattern Structure for Low Adhesion and Method for Manufacturing the same

摘要

The present invention relates to a super water-repellent film having a surface pattern structure for low adhesion and a manufacturing method thereof capable of maximizing a touch angle and sliding of a droplet by controlling a shape and arrangement of a micro/nano-microstructure in the super water-repellent film. The super water-repellent film having a surface pattern structure for low adhesion comprises: a base film; and micro/nano-unit patterns formed on a surface of the base film wherein the patterns are separated from each other at intervals in the direction orthogonal to a sliding direction of the droplet in order not to generate a difference (ΔG) of gibbs free energy when the droplet moves, which is calculated by using a gibbs free energy formula. The micro/nano-unit patterns are constituted so that a liquid-solid surface touch area of the droplet maintains a cassie-baxter (CB) state, and the droplet is arranged not to move in the direction in which area change of an interface (ΔA) is not zero in the total patterns, but to move in the direction in which the difference (ΔG) of the gibbs free energy is not generated.