Experimental Droplet Study of Inverted Marangoni Effect of a Binary Liquid Mixture on a Nonuniform Heated Substrate

被引：28
|
作者：
Ouenzerfi, Safouene [1 ]
Harmand, Souad [1 ]
机构：
[1] Univ Valenciennes & Hainaut Cambresis, LAMIH, UMR CNRS 8201, F-59313 Valenciennes 9, France
来源：
LANGMUIR | 2016年 / 32卷 / 10期
关键词：
SOLID-SURFACE; THERMOCAPILLARY MIGRATION; NONMONOTONIC DEPENDENCE; THERMAL-GRADIENTS; MOTION; TEMPERATURE; EVAPORATION; SESSILE; HYSTERESIS; TENSION;
D O I：
10.1021/acs.langmuir.5b04539
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present an experimental study on the inversion of the Marangoni effect of a binary mixture droplet under a horizontal temperature gradient. In particular, We studied the dynamics and the evaporation behavior under these conditions. We show that a binary mixture (97% water-3% butanol) droplet has a tendency to migrate to warmer areas, as opposed to spreading in pure fluids. During the evaporation process, we distinguish three stages of evaporation that are correlated to the dynamics of the droplet.
引用
收藏
页码：2378 / 2388
页数：11
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