Determination of the Sliding Angle of Water Drops on Surfaces from Friction Force Measurements.

ABSTRACT: Superhydrophobic surfaces have attracted considerable attention because of their unique water-repellency and their wide range of applications. The conventional method to characterize the surface wetting properties of surfaces, including superhydrophobic surfaces, relies on measuring static and dynamic contact angles, and sliding angles of water drops. However, because of the inhomogeneities inherently present on surfaces (smooth and textured), such optical methods can result in relatively large variability in sliding angle measurements. In this work, by using a force-based technique with ±1 μN sensitivity, the friction force between water drops and various surfaces is measured. The friction force can then be used to accurately predict the sliding angle of water drops of various sizes with

SUBMITTER: Beitollahpoor M 

PROVIDER: S-EPMC8851890 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature