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Issue 32, 2012
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Bilayer curling and winding in a viscous fluid

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Induced spontaneous curvature is a new mechanism of microcapsules bursting by nucleation and growth of a hole surrounded by a curling rim. Here we study the dynamics of curling on a macroscopic scale induced by the elastic curvature of a bilayer of tracing paper and tape after soaking by water. The ribbon which is fully stretched at time t = 0 is immersed in a viscous oil. We observe the winding from the free end and find two regimes: rolling at constant velocity at short times, and a slowdown at long times. We interpret these two regimes by a balance of the elastic driving force and the friction force on the roll.

Graphical abstract: Bilayer curling and winding in a viscous fluid

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Publication details

The article was received on 12 Apr 2012, accepted on 11 Jun 2012 and first published on 06 Jul 2012

Article type: Paper
DOI: 10.1039/C2SM25860A
Soft Matter, 2012,8, 8517-8522

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    Bilayer curling and winding in a viscous fluid

    L. Tadrist, F. Brochard-Wyart and D. Cuvelier, Soft Matter, 2012, 8, 8517
    DOI: 10.1039/C2SM25860A

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