Figure 2. The breakdown of the superhydrophobic-like bouncing.

(a) Selected time-lapsed images showing the impacting droplet on composite interfaces (μ_o=0.15 Pa s and h=50 μm) at We=20. There is no bouncing observed owing to the rupture of air cushion. Scale bar, 2 mm. (b) The variation of the probability P of achieving complete rebound with air entrapment as a function of We on composite interfaces (h=50 μm). For We≲10, the percentage of complete rebound with air cushion entrapment is as high as 75–90%, whereas it drops down to nearly zero for We≳18.