TY - JOUR
T1 - Spontaneous Breakdown of Superhydrophobicity
AU - Sbragaglia, M.
AU - Peters, A.M.
AU - Pirat, C.
AU - Borkent, B.M.
AU - Lammertink, Rob G.H.
AU - Wessling, Matthias
AU - Lohse, Detlef
PY - 2007
Y1 - 2007
N2 - In some cases water droplets can completely wet microstructured superhydrophobic surfaces. The dynamics of this rapid process is analyzed by ultrahigh-speed imaging. Depending on the scales of the microstructure, the wetting fronts propagate smoothly and circularly or—more interestingly—in a stepwise manner, leading to a growing square-shaped wetted area: entering a new row perpendicular to the direction of front propagation takes milliseconds, whereas once this has happened, the row itself fills in microseconds (“zipping”). Numerical simulations confirm this view and are in quantitative agreement with the experiments.
AB - In some cases water droplets can completely wet microstructured superhydrophobic surfaces. The dynamics of this rapid process is analyzed by ultrahigh-speed imaging. Depending on the scales of the microstructure, the wetting fronts propagate smoothly and circularly or—more interestingly—in a stepwise manner, leading to a growing square-shaped wetted area: entering a new row perpendicular to the direction of front propagation takes milliseconds, whereas once this has happened, the row itself fills in microseconds (“zipping”). Numerical simulations confirm this view and are in quantitative agreement with the experiments.
U2 - 10.1103/PhysRevLett.99.156001
DO - 10.1103/PhysRevLett.99.156001
M3 - Article
SN - 0031-9007
VL - 99
JO - Physical review letters
JF - Physical review letters
IS - 15
M1 - 156001
ER -