Effect of Surfactants on Longevity of Submerged Superhydrophobic Surfaces.

ABSTRACT: The gas trapped on a submerged superhydrophobic surface (SHS) could diffuse into the surrounding liquid, reducing the SHS longevity. Although surfactants are known to inhibit mass transfer between gas and liquid phases, their influence on SHS longevity remains unclear. In this work, we experimentally investigate the effect of surfactants on the mass transfer from the SHS to the surrounding liquid and the resulting SHS longevity. Four surfactants, 1-pentanol, Triton X-100, 2-propanol, and methanol, were tested over a range of concentrations and on three types of SHS texture geometries: microholes, microposts, and a randomly roughed texture. We found that at sufficiently high surfactant concentrations, the SHS longevity decreased significantly due to a sudden wetting transition triggered pro

SUBMITTER: Gupta A 

PROVIDER: S-EPMC12836326 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature