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(a) Static water contact angles of the different microsheet layers before and after PTES modification: (1) HR 120 °C-8 h at a pH of 12, (2) HR 120 °C-12 h at a pH of 12. (b) Photograph of water contact behavior on the vertical and tilted microsheet surfaces. (c) Illustration of the patterns of the morphology-induced water contact states on the superhydrophobic surface.
