期刊
SURFACE & COATINGS TECHNOLOGY
卷 352, 期 -, 页码 609-618出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2018.08.035
关键词
Superhydrophobic surface; Bounce dynamics; Anti-icing; Self-cleaning; Oil-water separation
资金
- National Natural Science Foundation of China [51575278]
- Special fund for the transformation of scientific and technological achievements in Jiangsu Province [BA2015054]
- Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD)
A timesaving method based on inexpensive and nontoxic chemicals is adopted to fabricate a superhydrophobic surface for engineering applications. The characterization of chemical compositions and microstructures indicates that this superhydrophobic surface is achieved successfully by the chemical etching and stearic acid modification. This method is applicable to a surface with super hydrophobicity for many metal materials. It is important to note that the ultra-hydrophobic aluminum surface is of good bounce dynamics for different sizes of a water droplet. The water contact & sliding angle are 155 degrees and 1 degrees respectively on the prepared superhydrophobic surface. As expected, the sliding angle of below 1 degrees is the key to obtain excellent anti-icing property on a superhydrophobic surface. Water droplets are prone to roll off the superhydrophobic surface, leading to the freezing delay and self-cleaning performance for different types of pollutions. In addition, the fabricated surface displays the superhydrophobic and lipophilic properties, which provide a potential application to oil-water separation.
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