Equilibrium and nonequilibrium thermodynamics of particle-stabilized thin liquid films

TL;DR

This paper extends thermodynamic models of particle-stabilized thin liquid films to include nonuniform equilibrium states and nonequilibrium transport, using simulations and advanced computational methods.

Contribution

It introduces a generalized thermodynamic framework for nonuniform and nonequilibrium states of colloid-stabilized films, supported by simulation and analytical techniques.

Findings

Equilibrium equations of state for particle-stabilized films derived from Monte Carlo simulations.

Short-time film-viscosity coefficients calculated using multipolar-expansion and flow-reflection methods.

Collective particle mobility evaluated for stabilized thin liquid films.

Abstract

Our recent quasi-two-dimensional thermodynamic description of thin-liquid films stabilized by colloidal particles is generalized to describe nonuniform equilibrium states of films in external potentials and nonequilibrium transport processes produced in the film by gradients of thermodynamic forces. Using a Monte--Carlo simulation method, we have determined equilibrium equations of state for a film stabilized by a suspension of hard spheres. Employing a multipolar-expansion method combined with a flow-reflection technique, we have also evaluated the short-time film-viscosity coefficients and collective particle mobility.