Non-wetting solids have been extensively studied for about 20 years due to the spectacular mobility they provide to water drops. However, they have other noteworthy properties: For instance, such materials immersed in water entrain a plastron of air, a phenomenon exploited by many creatures to hunt or breathe underwater. We measure the thickness of this plastron and model the results by modifying the Landau–Levich–Derjaguin theory established for a plate drawn out of a wetting liquid.
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2023
Author(s)
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