Liquid marbles stabilized by graphite particles from aqueous surfactant solutions
Liquid marbles stabilized by graphite particles from aqueous surfactant solutions
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DOI：
10.1016/j.colsurfa.2011.04.027
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发表时间：
2011-07-05
影响因子：
5.2
通讯作者：
Salama, Ibrahim E.
中科院分区：
文献类型：
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作者：
Doganci, Merve D.;Sesli, Belma U.;Salama, Ibrahim E.
当疏水性粉末封装液滴时，它形成液体大理石，该液体大理石是非润湿的，并且表现为能够移动而没有任何泄漏的液体的微储存器。在这项工作中，我们成功地制备了液体大理石封装石墨微粉十二烷基硫酸钠（SDS）水溶液液滴，并确定其总蒸发和屈曲期在一个封闭的室内具有恒定的相对湿度和温度。在相同条件下，将SDS溶液中石墨液球的蒸发速率与纯水中石墨液球的蒸发速率以及SOS液滴的蒸发速率进行了比较。讨论了SDS在石墨-水和空气-水界面上的吸附对石墨液珠形成和蒸发行为的影响。(C)2011 Elsevier B. V.保留所有权利。
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.