Title: Wetting of alkanes on water from a Cahn-type theory: Effects of long-range forces
Authors: Indekeu, Joseph ×
Ragil, K
Bonn, D
Broseta, D
Meunier, J #
Issue Date: 1999
Series Title: Journal of statistical physics vol:95 issue:5-6 pages:1009-1043
Conference: date:Katholieke Univ Leuven, Vaste Stof Fys & Magnetisme Lab, B-3001 Louvain, Belgium; Inst Francais Petr, F-92500 Rueil Malmaison, France; Ecole Normale Super, Phys Stat Lab, F-75231 Paris, France
Abstract: We apply the phenomenological wetting theory of Cahn to fluids with van der Waals forces, and in particular to the wetting of pentane on water. Taking into account explicitly the long-range substrate-adsorbate interaction allows us to reproduce the experimentally observed critical wetting transition, which arises from the vanishing of the Hamaker constant at T approximate to 5 53 degrees C This transition is preceded by a first-order transition between a thin and a thick film at a (much) lower temperature. If long-range forces are neglected, this thin-thick transition is the only wetting transition and critical wetting is missed. Our study focuses on the development of useful theoretical tools, such as phase portraits and interface potentials adapted to systems with van der Waals forces.
ISSN: 0022-4715
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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