A Liquid-pressure-adaptive Superhydrophobic Surface

Abstract The dynamic application environments of superhydrophobic surfaces, such as in the manufacturing, chemical, and garment industries, require the fast adaptiveness of the surfaces to their surroundings. Despite the progress in materials and structural design of superhydrophobic surfaces, simultaneously achieving high superhydrophobic stability and low adhesion by traditional design is still challenging. Here, we demonstrate a liquid-pressure-adaptive superhydrophobic surface with self-adjustable solid-liquid stability and adhesion when reacting to the dynamic environmental requirements. To understand the underlying adaptive processes, we imaged the liquid impalement dynamics in three dimensions by confocal microscope and measured the stability and superhydrophobicity in varied systems. We envision our design strategy of liquid-pressure-adaptive superhydrophobic surfaces with dynamic anti-infiltration capability could guide the development of stable superhydrophobicity under complex wetting conditions.