Can Water Float on Oil?
Can Water Float on Oil?
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DOI：
10.1021/la204820a
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发表时间：
2012-03-13
期刊：
影响因子：
3.9
通讯作者：
Tade, Moses O.
中科院分区：
文献类型：
--
作者：
Phan, Chi M.;Allen, Benjamin;Tade, Moses O.
研究了水在油表面的可浮性。从三个界面（水/油、水/空气和油/空气）的Young-Laplace方程开发了数值模型，以预测理论平衡条件。该模型成功地验证了与油/水系统。悬浮液滴的稳定性取决于三种界面张力、油密度和水滴体积的组合。然而，出于实用目的，平衡接触角必须大于5度，以便水滴可以有效地漂浮。这一结果对生物降解石油废物具有重要的应用价值。
The floatability of water on oil surface was studied. A numerical model was developed from the Young-Laplace equation on three interfaces (water/oil, water/air, and oil/air) to predict the theoretical equilibration conditions. The model was verified successfully with an oil/water system. The stability of the floating droplet depends on the combination of three interface tensions, oil density, and water droplet volume. For practical purposes, however, the equilibrium contact angle has to be greater than 5 degrees so the water droplet can effectively float. This result has significant applications for biodegrading oil wastes.