Wetting resistance of heterogeneous superhydrophobic coatings with orthogonally layered fibers

摘要: Abstract Superhydrophobic coatings comprised of electrospun nanofibers are a low-cost alternative to micro-fabricated surfaces, and can be applied substrates any arbitrary geometry. Such with orthogonally oriented layers have properties that allow their wetting resistance predictable for range solid volume fractions, fiber diameters, contact angles. In this paper, we presented modeling strategy solves the air–water interface shape over several such predict superhydrophobic hydrostatic pressures quantify relationship between microstructure, meniscus penetration depth, wetted surface area fibers. Slip length predictions also provided shed some light on performance in drag reduction applications. It was found while failure pressure coating rises reducing spacing, there is tradeoff relative bare substrate. This offset, however, by using smaller fibers an intended coating. results higher same fraction. The generated work discussed relation those reported literature whenever possible.