Journal :   Asian Journal of Research in Chemistry

Volume No. :   9

Issue No. :  12

Year :  2016

Pages :   655-663

ISSN Print :  0974-4169

ISSN Online :  0974-4150


Registration

Allready Registrered
Click to Login

3,3,3-Trifluoropropyltrimethoxysilane (TFPTMS) Sol-Gel-Coated Aluminum Specimens: Influence of Sol-Gel Preparation Medium on Coating Properties



Address:   Ying-Sing Li1, Gladius Lewis2*, N. E. Vecchio1, Johnny Yang2
1Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
2Department of Mechanical Engineering, The University of Memphis, Memphis, TN 38152, USA
*Corresponding Author
DOI No: 10.5958/0974-4150.2016.00090.0

ABSTRACT:
Coating a component/structure is, arguably, the most common corrosion protection method, with organic barrier coatings being the most widely used variant. Many concerns have been raised about these coatings; for example, they are not biodegradable and emit volatile organic compounds. Thus, there is interest in a new generation of organic barrier coatings. This type of coating is the subject of the present study, which involved 1) application of coatings prepared from 3,3,3-trifluoropropyltrimethoxysilane (TFPTMS) sol-gel, using both an organic solvent (ethanol solution) and an aqueous solution, to Al specimens; and 2) characterization of the coatings. The influence of sol-gel preparation medium (ethanol solution versus aqueous solution) and post-coating treatment method (drying versus curing) on an assortment of coating properties, such as corrosion resistance in NaCl solution and contact angle in water, was determined. The most corrosion-resistant coating was obtained using an aqueous TFPTMS sol-gel and curing of the coated specimen at 105 oC for 24 h.
KEYWORDS:
Sol-gel coating; 3,3,3-trifluoropropyltrimethoxysilane; IR spectra; electrochemistry; corrosion performance; contact angle.
Cite:
Ying-Sing Li, Gladius Lewis, N. E. Vecchio, Johnny Yang. 3,3,3-Trifluoropropyltrimethoxysilane (TFPTMS) Sol-Gel-Coated Aluminum Specimens: Influence of Sol-Gel Preparation Medium on Coating Properties. Asian J. Research Chem. 2016; 9(12):655-663.
[View HTML]      [View PDF]



Visitor's No. :   202695