Late stage spreading of stratified liquids: Theory.

Autor: Ausserré, D., Buraud, J.-L.
Předmět:
Zdroj: Journal of Chemical Physics; 3/21/2011, Vol. 134 Issue 11, p114706, 8p, 1 Color Photograph, 3 Graphs
Abstrakt: Spreading of a liquid crystal droplet on a solid surface resembles the collapse of a zigguratlike structure and ends up with only two molecular terraces. A model is proposed to describe the time evolution of this late stage structure. It differs from the previous de Gennes-Cazabat theory by several aspects: (1) it avoids previous approximations and gives exact solutions of the kinetic equations; (2) it covers strongly layered liquids such as smectic liquid crystals; (3) it introduces the twodimensional Laplace pressure as an essential motor for spreading; (4) it takes into account the liquid/gas transition in the surface layer that was consistently reported in experiments with 8CB. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index