Abstract
In this paper, we report on the competition between evaporation and hydrodynamics for advancing drops of polymer solutions. We thus study advancing drops which are allowed to evaporate. Drying drives the accumulation of polymer at the contact line, whereas the advancing motion tends to homogenize the drop. At high velocity, we experimentally verify classical hydrodynamics predictions. At intermediate velocities, drying dominates and the contact line becomes more viscous than the bulk droplet. In the limiting case of very low velocities, the contact line can be partially pinned on the substrate because of the formation of a glassy defect at the contact line.
Similar content being viewed by others
References
S.F. Kistler, P.M. Schweizer, Liquid Film Coating (Chapman & Hall, New York, 1997)
P.G. de Gennes, Rev. Mod. Phys. 57, 3 (1985)
R.D. Deegan, O. Bakajin, T.F. Dupont, G. Huber, S.R. Nagel, T.A. Witten, Nature 389, 827 (1997)
E. Rio, A. Daerr, F. Lequeux, L. Limat, Langmuir 22, 3186 (2006)
O.V. Voinov, Fluid Dyn. 11, 714 (1976)
R.G. Cox, J. Fluid Mech. 168, 169 (1986)
P-G. De Gennes, Scaling Concepts in Polymer Physics (Cornell University Press, 1979)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Monteux, C., Tay, A., Elmaallem, Y. et al. Drying and advancing droplets of polymer solutions. Eur. Phys. J. Spec. Top. 166, 33–37 (2009). https://doi.org/10.1140/epjst/e2009-00874-2
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjst/e2009-00874-2