71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

P0056: Liquid deposition through evaporation

Authors
  • Asher Mouat, Department of Physics, Emory University
  • Clay Wood, Department of Physics, Emory University
  • Justin Pye, Department of Physics, Emory University
  • Justin Burton, Department of Physics, Emory University
DOI: https://doi.org/10.1103/APS.DFD.2018.GFM.P0056

An droplet that contains small particles will often leave "coffee ring" patterns on a surface due to an evaporation-induced flow. Here we explore a similar phenomena where a small amount of non-volatile liquid is left behind on a surface after the evaporation of a volatile solvent. The deposition pattern depends on the surface tension between the liquids, and the affinity of each liquid for the surface. The patterns range from extended "fingers" that leave a thin film on the surface, so bulbous "pearls" that are left behind as small drops. Finally, the behavior can be tuned by altering the hydrophobicity of the surface.

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License. Any reuse must credit the author(s) and provide a link back to this page.