Abstract
air dissolution, together with vapor condensation, leads to short sustainability of superhydrophobicity, which turns out as a critical problem for the practical application in underwater environment. In this study, using sponge based superhydrophobic material as the prototype, we have tried to realize the long sustainable superhydrophobicity via an aeration strategy. To verify this protocol, firstly, the superhydrophobic sponge was obtained by grafting the hydrophobic moiety onto the backbone surface. by connecting the partially immersed superhydrophobic sponge with the external atmosphere, infinite air supply is achieved. Using air to flow in and out of the superhydrophobic matrix, vapor from the neighbor bulk water phase is carried out, so that water condensation is avoided. This leads to along sustainability of the superhydrophobicity. (C) 2015 Elsevier B.V. All rights reserved.
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