ROCHÉ, Matthieu; AYTOUNA, Mounir; BONN, Daniel; KELLAY, Hamid

doi:10.1103/PhysRevLett.103.264501

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ROCHÉ, Matthieu
Centre de physique moléculaire optique et hertzienne [CPMOH]

AYTOUNA, Mounir

BONN, Daniel
Laboratoire de Physique Statistique de l'ENS [LPS]

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Physical Review Letters. 2009-12-31, vol. 103, n° 26, p. 264501

American Physical Society

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It is shown experimentally that surfactants can change the thinning rate of fluid necks undergoing rupture. In the case of two-fluid pinch-off, two or three linear regimes are observed for the variation of the neck radius versus time. The surface tension in the neck region changes with time, as a result of surfactant depletion. Similar results are obtained for the case of a single fluid pinching in air. The depletion of surfactant can be either partial or complete depending on the rate of transport of the surfactant from the bulk to the surface.< Leer menos

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Effect of Surface Tension Variations on the Pinch-Off Behavior of Small Fluid Drops in the Presence of Surfactants

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