| 초록 |
Both high static repelling property and pressure resistance are critical to achieving high-performance omniphobic surface. The cuticle of springtails have both of features, which originates from their hierarchical system composed of doubly reentrant nanostructures on micro-roughness. Despite intensive efforts, none of the previous studies inspired by the springtail were able to simultaneously achieve both surface characteristics because of general trade-off between them. Here, we demonstrate for the first time springtail-inspired superomniphobic surface displaying both features by fabricating hierarchical system consisting of serif-T-shaped nanostructures on microscale wrinkles, overcoming previous limitations. Our biomimetic strategy produced engineered surface showing high repellency from water to ethanol. Simultaneously, the surface was able to endure extreme pressure resulting from the impacts of drops of water and of ethylene glycol with We ＞＞ 200, and of ethanol with We ~ 53. |
