Mechanical Tuning of the Evaporation Rate of Liquid on Crossed Fibers

Franҫois Boulogne, Alban Sauret, Beatrice Soh, Emilie Dressaire, Howard A. Stone

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

We investigate experimentally the drying of a small volume of perfectly wetting liquid on two crossed fibers. We characterize the drying dynamics for the three liquid morphologies that are encountered in this geometry: drop, column, and a mixed morphology, in which a drop and a column coexist. For each morphology, we rationalize our findings with theoretical models that capture the drying kinetics. We find that the evaporation rate significantly depends upon the liquid morphology and that the drying of the liquid column is faster than the evaporation of the drop and the mixed morphology for a given liquid volume. Finally, we illustrate that shearing a network of fibers reduces the angle between them, changes the morphology toward the column state, and therefore, enhances the drying rate of a volatile liquid deposited on it. (Figure Presented).

Original languageEnglish (US)
Pages (from-to)3094-3100
Number of pages7
JournalLangmuir
Volume31
Issue number10
DOIs
StatePublished - Mar 17 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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