Systematic control of hydrophobic and superhydrophobic properties using double-rough structures based on mixtures of metal oxide nanoparticles.
作者： Benjamin Hipp , Ilka Kunert , Michael Dürr
DOI: 10.1021/LA1006296
关键词: Degree (temperature) 、 Particle 、 Nanotechnology 、 Contact angle 、 Preparation method 、 Nanoparticle 、 Metal oxide nanoparticles 、 Surface finish 、 Rough surface 、 Chemical engineering 、 Materials science
摘要: Double-rough surfaces were prepared by using mixtures of metal oxide nanoparticles with diameters on two different length scales. The degree double-roughness these was controlled defined ratios larger (≈300 nm) and smaller (≈30 particles. If the preparation method chosen such that particles decorate ones, a roughness scales induced an increase contact angles from 130° to 160° increasing observed. At highest double-roughness, transition Wenzel Cassie regime occurred. results quantitatively modeled basis modified equation taking into account hierarchies roughness.
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