Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Temperature-dependence of the static contact angle: a universal scaling law covering ideal cases, roughness effects and the transition to total wetting

Abstract : In this work, a novel model that links the macroscopic contact angle, the system temperature and the surface tension is introduced. This model considers that the thermocapillary fluctuations on the droplet surface extend to the triple line and they interact with the solid substrate. The self-affine pinning of this triple line against a solid substrate is modelled with an homogeneous spatial distribution of potential wells. The introduction of a topological dimension in the equations yields a unified model that covers normal wetting (liquid droplets on smooth surfaces) but also Cassie-Baxter and Wenzel states on natural surfaces. The model also encompasses the transition to complete wetting.
Complete list of metadatas

Cited literature [52 references]  Display  Hide  Download

https://hal-normandie-univ.archives-ouvertes.fr/hal-03011884
Contributor : Benoît Duchemin <>
Submitted on : Wednesday, November 18, 2020 - 12:15:40 PM
Last modification on : Friday, November 20, 2020 - 3:31:05 AM

File

Universal law for static conta...
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

  • HAL Id : hal-03011884, version 1

Collections

Citation

Benoît Duchemin. Temperature-dependence of the static contact angle: a universal scaling law covering ideal cases, roughness effects and the transition to total wetting. 2020. ⟨hal-03011884⟩

Share

Metrics

Record views

5

Files downloads

3