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Title: Fabrication of self-healing super-hydrophobic surfaces on aluminium alloy substrates

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°.
Authors:
; ; ;  [1]
  1. Department of Microelectronics, Harbin Institute of Technology, Harbin, Heilongjiang, 150001 (China)
Publication Date:
OSTI Identifier:
22488517
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 4; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; ALUMINIUM ALLOYS; CHEMICAL COMPOSITION; ELECTRON SCANNING; FLUORINATED ALIPHATIC HYDROCARBONS; FLUORINATION; HEALING; PARTICLES; POLYVINYLS; SILANES; SOLUTIONS; SUBSTRATES; SURFACES; X-RAY SPECTROSCOPY