Wetting morphologies on an array of fibers of different radii

Alban Sauret, François Boulogne, David Cébron, Emilie Dressaire, Howard A. Stone

Research output: Contribution to journalArticle

Abstract

We investigate the equilibrium morphology of a finite volume of liquid placed on two parallel rigid fibers of different radii. As observed for identical radii fibers, the liquid is either in a column morphology or adopts a drop shape depending on the inter-fiber distance. However the cross-sectional area and the critical inter-fiber distance at which the transition occurs are both modified by the polydispersity of the fibers. Using energy considerations, we analytically predict the critical inter-fiber distance corresponding to the transition between the column and the drop morphologies. This distance depends both on the radii of the fibers and on the contact angle of the liquid. We perform experiments using a perfectly wetting liquid on two parallel nylon fibers: the results are in good agreement with our analytical model. The morphology of the capillary bridges between fibers of different radii is relevant to the modeling of large arrays of polydisperse fibers. This journal is

Original languageEnglish (US)
Pages (from-to)4034-4040
Number of pages7
JournalSoft Matter
Volume11
Issue number20
DOIs
StatePublished - May 28 2015

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wetting
Wetting
radii
fibers
Fibers
Liquids
liquids
Nylon (trademark)
Nylons
Polydispersity
Contact angle
Analytical models

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Sauret, A., Boulogne, F., Cébron, D., Dressaire, E., & Stone, H. A. (2015). Wetting morphologies on an array of fibers of different radii. Soft Matter, 11(20), 4034-4040. https://doi.org/10.1039/c5sm00401b

Wetting morphologies on an array of fibers of different radii. / Sauret, Alban; Boulogne, François; Cébron, David; Dressaire, Emilie; Stone, Howard A.

In: Soft Matter, Vol. 11, No. 20, 28.05.2015, p. 4034-4040.

Research output: Contribution to journalArticle

Sauret, A, Boulogne, F, Cébron, D, Dressaire, E & Stone, HA 2015, 'Wetting morphologies on an array of fibers of different radii', Soft Matter, vol. 11, no. 20, pp. 4034-4040. https://doi.org/10.1039/c5sm00401b
Sauret A, Boulogne F, Cébron D, Dressaire E, Stone HA. Wetting morphologies on an array of fibers of different radii. Soft Matter. 2015 May 28;11(20):4034-4040. https://doi.org/10.1039/c5sm00401b
Sauret, Alban ; Boulogne, François ; Cébron, David ; Dressaire, Emilie ; Stone, Howard A. / Wetting morphologies on an array of fibers of different radii. In: Soft Matter. 2015 ; Vol. 11, No. 20. pp. 4034-4040.
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