Fabrication of self-healing super-hydrophobic surfaces on aluminium alloy substrates
- Department of Microelectronics, Harbin Institute of Technology, Harbin, Heilongjiang, 150001 (China)
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 H{sub 2}O, 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°.
- OSTI ID:
- 22488517
- Journal Information:
- AIP Advances, Journal Name: AIP Advances Journal Issue: 4 Vol. 5; ISSN AAIDBI; ISSN 2158-3226
- Country of Publication:
- United States
- Language:
- English
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