1. Fabrication of self-healing super-hydrophobic surfaces on aluminium alloy substrates.
- Author
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Yang Wang, Xiao Wei Liu, Hai Feng Zhang, and Zhi Ping Zhou
- Subjects
- *
SELF-healing materials , *SMART materials , *HYDROPHOBIC surfaces , *SURFACE chemistry , *ALUMINUM alloys - Abstract
We present a method to fabricate a super-hydrophobic surface with a self-healing ability on an aluminium alloy substrate. The coatings are obtained by combining a two-step process (first, the substrate is immersed in a solution of HCl, HF and H2O, and then in boiling water) and succeeding surface fluorination with a solution of poly(vinylidene-fluoride-co-hexafluoropropylene) and a fluoroalkyl silane. The morphological features and chemical composition were studied by scanning electron micrometry and energy-dispersive X-ray spectroscopy. The prepared super-hydrophobic aluminium surfaces showed hierarchical structures forming pores, petals and particles with a contact angle of 161° and a sliding angle of 3°. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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