마이크로 구조가 있는 소수성 표면에서 액적의 젖음성 상태에 대한 열역학적 모델 개발

In this study, the wetting state on the hydrophobic micro-textured surfaces is experimentally and theoretically investigated. For the quantifiable analysis, the hydrophobic micro-textured surfaces are fabricated by MEMS (Micro Electro Mechanical Systems) technique. To clarify the wetting state depending on the geometrical morphology, the wetting state of a droplet on the surface is visualized by synchrotron X-ray radiography with a high spatial resolution (In this study, the size of a pixel was 1.74μm). On the basis of the visualized wetting state data, the thermodynamic model is theoretically developed to estimate the wetting state on the hydrophobic micro-textured surfaces.