Contact angle hysteresis: a different view and a trivial recipe for low hysteresis hydrophobic surfaces
Abstract
Contact angle hysteresis is addressed from two perspectives. The first is an analysis of the events that occur during motion of droplets on superhydrophobic surfaces. Hysteresis is discussed in terms of receding contact line pinning and the tensile failure of capillary bridges. The sign of the curvature of the solid surface is implicated as playing a key role. The second is the report of a new method to prepare smooth low hysteresis surfaces. The thermal treatment of
- This article is part of the themed collection: Wetting Dynamics of Hydrophobic and Structured Surfaces