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A novel method to prepare superhydrophobic, UV resistance and anti-corrosion steel surface

Authors
Journal
Chemical Engineering Journal
1385-8947
Publisher
Elsevier
Publication Date
Volume
210
Identifiers
DOI: 10.1016/j.cej.2012.08.090
Keywords
  • Superhydrophobic Surface
  • Contact Angle
  • Layer By Layer Deposition
  • Uv Resistance
Disciplines
  • Chemistry

Abstract

Abstract Both TiO2 and SiO2 coated steel surfaces containing micro- and nanoscale binary structures with different surface roughness were successfully fabricated by means of a facile layer by layer deposition process followed by heat treatment. The resulting surfaces were modified by the low free energy chemical PTES (1H,1H,2H,2H-Perfluorodecyltriethoxysilane). The experimental results of wettability exhibit that such modified surfaces have a strong repulsive force to water droplets, their static contact angles exceed 165°, receding angle>160°, advanced angles>170° and slide angle<1°. The resulting surfaces not only exhibit superhydrophobic properties but also show strong UV resistance (after coating SiO2 on top of TiO2) and strong stability to various solvents including 0.01% HCl solution.

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