Wetting reversal in colloid-polymer systems

被引：2
|
作者：
Blokhuis, Edgar M. [1 ]
Kuipers, Joris [1 ]
机构：
[1] Leiden Univ, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands
来源：
PHYSICAL REVIEW E | 2010年 / 81卷 / 05期
关键词：
FLUID-FLUID INTERFACE; PHASE-BEHAVIOR; MIXTURES; TENSION; WALL;
D O I：
10.1103/PhysRevE.81.051602
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The wetting of a phase-separated colloid-polymer mixture in contact with a hard wall is analyzed using free volume theory in a Nakanishi-Fisher-type approach. We present results for the wetting phase diagram for several model approximations. Our analysis is compared with a previous analysis by Aarts et al. [J. Chem. Phys. 120, 1973 (2004)]. We find that there is a crossover from wetting to drying at a threshold value for the colloid-polymer size ratio and that the transitions are close to the critical point and of second order in nature.
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页数：9
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