Vertical drying of a suspension of sticks: Monte Carlo simulation for continuous two-dimensional problem

2017/10/30 by Nikolaï Lebovka, Nikolai I. Lebovka, Yuri Yu. Tarasevich +1 · 1 citation
Chemistry · Engineering · Mathematics · Physics and Astronomy · #Anisotropy #Brownian motion #Chemistry #Condensed matter physics #Electrical resistivity and conductivity #Evaporation #Fluid Dynamics and Thin Films #Geometry #Isotropy #Kinetic Monte Carlo #Materials science #Mathematics #Mechanics #Monte Carlo method #Nanomaterials and Printing Technologies #Optics #Photonic Crystals and Applications #Physics #Stratification (seeds) #Thermodynamics #cond-mat.soft #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreve.97.022136

published as Phys. Rev. E 97, 022136 (2018) · 10 pages, 8 figures, 47 references, submitted to PRE

arxiv created 2017/10/30 · openalex publication_date 2018/02/21 · arxiv updated 2018/02/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The vertical drying of a two-dimensional colloidal film containing zero-thickness sticks (lines) was studied by means of kinetic Monte Carlo (MC) simulations. The continuous two-dimensional problem for both the positions and orientations was considered. The initial state before drying was produced using a model of random sequential adsorption with isotropic orientations of the sticks. During the evaporation, an upper interface falls with a linear velocity in the vertical direction, and the sticks undergo translational and rotational Brownian motions. The MC simulations were run at different initial number concentrations (the numbers of sticks per unit area), p_i, and solvent evaporation rates, u. For completely dried films, the spatial distributions of the sticks, the order parameters, and the electrical conductivities of the films in both the horizontal, x, and vertical, y, directions were examined. Significant evaporation-driven self-assembly and stratification of the sticks in the vertical direction was observed. The extent of stratification increased with increasing values of u. The anisotropy of the electrical conductivity of the film can be finely regulated by changes in the values of p_i and u.

Citations

• THE EFFECTS OF SHAPE ON THE INTERACTION OF COLLOIDAL PARTICLES
• Nonmonotonic size dependence of the critical concentration in 2D percolation of straight rigid rods under equilibrium conditions
• Drying of thin colloidal films
• Nematic-disordered phase transition in systems of long rigid rods on two-dimensional lattices
• Phase transitions in lyotropic colloidal and polymer liquid crystals
• Diffusion-driven self-assembly of rodlike particles: Monte Carlo simulation on a square lattice
• A Guide to Monte Carlo Simulations in Statistical Physics

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