Material property of extreme resistance to wetting
A drop on a lotus surface, with a contact angle of greater than 146°.A water droplet falling onto a superhydrophobic, elastic surface.
In chemistry and materials science, ultrahydrophobic (or superhydrophobic) surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact angles of a water droplet on an ultrahydrophobic material exceed 150°.[1] This is also referred to as the lotus effect, after the superhydrophobic leaves of the lotus plant. A droplet striking these kinds of surfaces can fully rebound like an elastic ball.[2] Interactions of bouncing drops can be further reduced using special superhydrophobic surfaces that promote symmetry breaking,[3][4][5][6] pancake bouncing[7] or waterbowl bouncing.[8][9]
^Wang, Shutao; Jiang, L. (2007). "Definition of superhydrophobic states". Advanced Materials. 19 (21): 3423–3424. Bibcode:2007AdM....19.3423W. doi:10.1002/adma.200700934. S2CID 138017937.
^Richard, Denis; Clanet, Christophe; Quéré, David (June 2002). "Contact time of a bouncing drop". Nature. 417 (6891): 811. doi:10.1038/417811a. PMID 12075341. S2CID 39405131.
^Morgan, James (2013-11-21). "Waterproof surface is 'driest ever'". BBC News. Retrieved 2020-08-19.
^"Physicists break theoretical time barrier on bouncing droplets (w/ Video)". phys.org. Retrieved 2020-08-19.
^Bird, James C.; Dhiman, Rajeev; Kwon, Hyuk-Min; Varanasi, Kripa K. (November 2013). "Reducing the contact time of a bouncing drop". Nature. 503 (7476): 385–388. Bibcode:2013Natur.503..385B. doi:10.1038/nature12740. ISSN 1476-4687. PMID 24256803. S2CID 1329448.
In chemistry and materials science, ultrahydrophobic (or superhydrophobic) surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact...
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