title: Force of adhesion upon loss of contact angle hysteresis: when a liquid behaves like a solid.
abstract: The theoretically predicted vanishment of the macroscopic contact angle hysteresis is found experimentally along with a small but finite force of adhesion (F(Ad)≈-0.5 μN) that, unexpectedly, is independent of the history of the preload. Our results agree with the prediction of a model in which the surface tension of the liquid provides the counterpart of the restoring force of an elastic solid, evidencing that the dewetting of a liquid in the absence of strong pinning points is equivalent to the detachment of an elastic solid.
authors: Instituto de Física, Universidad Nacional Autónoma de México, P. O. Box 20-364, Mexico City 04510, Mexico.
authors: Juan V
authors: JV
authors: Escobar
authors: Instituto de Física, Universidad Nacional Autónoma de México, P. O. Box 20-364, Mexico City 04510, Mexico.
authors: Rolando
authors: R
authors: Castillo