SYNTHESIS OF ORGANIC–INORGANIC HYBRID COATINGS FOR THE PROTECTION OF ALUMINUM SUBSTRATES

Bing Lei, Guozhe Meng and Wei Liu
Additional contact information
Bing Lei: School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
Guozhe Meng: School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
Wei Liu: School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China

Surface Review and Letters (SRL), 2021, vol. 28, issue 05, 1-5

Abstract: A silica-based organic–inorganic hybrid coating has been developed for corrosion protection of aluminum substrates by dip-coating technique. The hybrid sols were prepared by hydrolysis and condensation of trimethoxy(7-octen-1-yl)silane (TMOS) and tetraethyl orthosilicate (TEOS) in the presence of acetic acid. Structural characterization of the hybrid coatings was performed using powder X-ray diffraction analysis (PXRD). The morphology of the coating has been studied by scanning electron microscope (SEM). Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) tests have been performed, and the results showed that the silane coatings had high corrosion resistance. The heat treatment of the coatings at various temperatures have been investigated, and the results show that 130∘C is an optimized temperature. The results expose that the hybrid coating enhanced the corrosion protection of aluminum in aqueous 3.5% NaCl solution.

Keywords: Organic–inorganic hybrid; coatings; anticorrosion (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X21500335
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:28:y:2021:i:05:n:s0218625x21500335

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X21500335

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().