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- The Influence of Long-Range Surface Forces on the Contact Angle of Nanometric Droplets and Bubbles doi link

Auteur(s): Stocco A.(Corresp.), Moehwald H.

(Article) Publié: Langmuir, vol. 31 p.11835–11841 (2015)
Texte intégral en Openaccess : openaccess


Ref HAL: hal-01225317_v1
DOI: 10.1021/acs.langmuir.5b02922
WoS: 000364354800011
Exporter : BibTex | endNote
9 Citations
Résumé:

For a droplet or a bubble of dimensions below 100 nm, long-range surface forces such as long-range van der Waals forces can compete with capillarity, which leads to a size dependence of the contact angle. This is discussed in this work, where we also show that the effect cannot simply be described by a normalized line tension. We calculate interfacial profiles for typical values of van der Waals forces and discuss the role of long-range surface forces on the contact angle of nanobubbles and nanodrops.