Liquid marbles stabilized by graphite particles from aqueous surfactant solutions

被引：51

作者：

Doganci, Merve D. ^{[1
]}

Sesli, Belma U. ^{[1
]}

Erbil, H. Yildirim ^{[1
]}

Binks, Bernard P. ^{[2
]}

Salama, Ibrahim E. ^{[2
]}

机构：

[1] Gebze Inst Technol, Dept Chem Engn, TR-41400 Gebze, Kocaeli, Turkey

[2] Univ Hull, Dept Chem, Surfactant &Colloid Grp, Kingston Upon Hull HU6 7RX, N Humberside, England

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2011年 / 384卷 / 1-3期

关键词：

Liquid marbles; Sodium dodecyl sulfate; Contact angle; Drop evaporation; Superhydrophobicity; Surfactant adsorption; PERIPHERAL CONTACT-ANGLE; SODIUM DODECYL-SULFATE; SESSILE DROPS; DIFFUSION-COEFFICIENT; CARBON INTERACTION; POLYMER SURFACES; SOLID-SURFACES; EVAPORATION; WATER; ADSORPTION;

D O I：

10.1016/j.colsurfa.2011.04.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

When a hydrophobic powder encapsulates a liquid drop, it forms a liquid marble which is non-wetting and behaves as a micro-reservoir of the liquid able to move without any leakage. In this work, we successfully prepared liquid marbles by encapsulating graphite micropowder on aqueous sodium dodecyl sulfate (SDS) droplets and determined their total evaporation and buckling periods in a closed chamber having constant relative humidity and temperature. The evaporation rates of graphite liquid marbles obtained from SDS solutions were compared with the rates of graphite liquid marbles from pure water and also with aqueous SOS droplets in the same conditions. The effects of SDS adsorption at the graphite-water and air-water interfaces on the formation and evaporation behavior of graphite liquid marbles are discussed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：417 / 426

页数：10

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