A strategy based on the use of an inert ionic liquid (IL) has allowed the study of the electrolyte diffusion process in a polysiloxane-based coating applied on steel. The selection of 1-ethyl-3-methylimidazolium ethylsulfate, acting as non-aqueous medium, made it possible to evaluate the protective performance of polysiloxane coating under dry conditions. EIS measurements allowed monitoring of both impedance and capacitance during outward water diffusion, and proved the waterproofing properties of the hybrid coating. Furthermore, samples exposed to continuous and cyclic testing demonstrated an excellent anticorrosive performance. Surface characterization techniques (SEM, EDX, FTIR) were used to prove the absence of appreciable interaction of the selected IL with the polysiloxane coating.
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1 March 2015
Research Article|
September 03 2014
An Inert Ionic Liquid-Based System for Ascertaining Electrolyte Diffusivity in Protective Coatings Available to Purchase
M. Echeverría;
‡Corresponding author. E-mail: [email protected].
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‡Corresponding author. E-mail: [email protected].
*ENCOMAT Group, Universidade de Vigo, Campus Universitario, 36310 Vigo, Spain.
**Department of Chemical Engineering, University of Vigo, 36310 Vigo, Spain.
*** Research Center on Anticorrosive and Tensoactive Materials (CEAT), University of Matanzas, 40449 Matanzas, Cuba.
Received:
May 29 2014
Revision Received:
September 03 2014
Accepted:
September 03 2014
Online ISSN: 1938-159X
Print ISSN: 0010-9312
© 2015 NACE International
2015
CORROSION (2015) 71 (3): 259–266.
Article history
Received:
May 29 2014
Revision Received:
September 03 2014
Accepted:
September 03 2014
Citation
M. Echeverría, F.J. Deive, M.A. Sanromán, A. Rodríguez, C.M. Abreu, C.A. Echeverría; An Inert Ionic Liquid-Based System for Ascertaining Electrolyte Diffusivity in Protective Coatings. CORROSION 1 March 2015; 71 (3): 259–266. https://doi.org/10.5006/1362
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