Surfactant adsorption at superhydrophobic surfaces

被引:45
作者
Ferrari, Michele [1 ]
Ravera, Francesca [1 ]
Rao, Silvia [1 ]
Liggieri, Libero [1 ]
机构
[1] CNR, Inst Energet & Interphases, I-16149 Genoa, Italy
关键词
D O I
10.1063/1.2226771
中图分类号
O59 [应用物理学];
学科分类号
摘要
Here the wetting of ionic and nonionic surfactant solutions on a superhydrophobic interface, obtained by using a mixed inorganic-organic coating providing a fractal-like structure, has been investigated to define the role of adsorption at these interfaces. The presence of the amphiphilic molecules is effective in lowering the contact angle in a hydrophobic or still superhydrophobic range. Influencing the adsorption properties by acting on the surfactant type and concentration, the spreading of a drop on the surface can be controlled by amphiphiles confining its volume in a restricted space. (c) 2006 American Institute of Physics.
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页数:3
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