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Wetting morphologies on an array of fibers of different radii

Author(s): Sauret, Alban; Boulogne, François; Cébron, David; Dressaire, Emilie; Stone, Howard A

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dc.contributor.authorSauret, Alban-
dc.contributor.authorBoulogne, François-
dc.contributor.authorCébron, David-
dc.contributor.authorDressaire, Emilie-
dc.contributor.authorStone, Howard A-
dc.identifier.citationSauret, Alban, Boulogne, François, Cébron, David, Dressaire, Emilie, Stone, Howard A. (2015). Wetting morphologies on an array of fibers of different radii. Soft Matter, 11 (20), 4034 - 4040. doi:10.1039/C5SM00401Ben_US
dc.description.abstractWe 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.en_US
dc.format.extent4034 - 4040en_US
dc.relation.ispartofSoft Matteren_US
dc.rightsAuthor's manuscripten_US
dc.titleWetting morphologies on an array of fibers of different radiien_US
dc.typeJournal Articleen_US

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