Using ethyl acetoacetate (EAcAc) as a chelating agent, titanium dioxide (TiO2) sol with ultra-fine particles has been prepared and deposited on Type 316L (UNS S31603) stainless steel to form a nano-TiO2 coating by the dip-coating. A hydrothermal posttreatment method has been applied to obtain crack-free coatings and to optimize the surface structure and properties. A self-assembly of fluoroalkylsilane (denoted as FAS-13) has been conducted to enhance the hydrophobic property for the surface of the nano-TiO2 coatings. The particle sizes of TiO2 sol have been analyzed by ζ potential analysis, and the surface morphology, structure, and properties have been characterized by contract angle, x-ray diffraction (XRD), and scanning electron microscopy (SEM) measurements. The results have shown that the surface of coatings is porous, with approximately 375 nm thickness; the diameter of the particles of anatase TiO2 is uniform, in the range from 15 nm to 18 nm. The electrochemical tests have indicated that the hydrophobic coatings of nano-TiO2 exhibit an excellent corrosion resistance.
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1 October 2005
Research Article|
October 01 2005
Study on Hydrophobic Nano-Titanium Dioxide Coatings for Improvement in Corrosion Resistance of Type 316L Stainless Steel
G.X. Shen;
G.X. Shen
*State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005,
China
.
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R.G. Du;
R.G. Du
*State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005,
China
.
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Y.C. Chen;
Y.C. Chen
*State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005,
China
.
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C.J. Lin;
C.J. Lin
‡
*State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005,
China
.‡Corresponding author. E-mail: [email protected].
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D. Scantlebury
D. Scantlebury
**Corrosion and Protection Centre, UMIST, PO Box 88, Manchester M60 1QD,
United Kingdom
.
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‡Corresponding author. E-mail: [email protected].
Online ISSN: 1938-159X
Print ISSN: 0010-9312
NACE International
2005
CORROSION (2005) 61 (10): 943–950.
Citation
G.X. Shen, R.G. Du, Y.C. Chen, C.J. Lin, D. Scantlebury; Study on Hydrophobic Nano-Titanium Dioxide Coatings for Improvement in Corrosion Resistance of Type 316L Stainless Steel. CORROSION 1 October 2005; 61 (10): 943–950. https://doi.org/10.5006/1.3280894
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