Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/48949
Título: Improvement of alkyd film performance with mineral pigments
Autores/as: Popa, Mihai V.
Drob, Paula
Vasilescu, Ecaterina
Santana Lopez, Agustin
Vasilescu, Cora
Mirza Rosca, Julia Claudia 
Palabras clave: Electrochemical Impedance Spectroscopy
Corrosion Behavior
Organic Coatings
Steel
Polymer, et al.
Fecha de publicación: 2006
Editor/a: 0035-3930
Publicación seriada: Revue Roumaine de Chimie 
Resumen: The effect of three mineral pigments (white titanium dioxide, yellow iron oxide, and iron blue) on the alkyd film performance is studied in this paper. The protective films were realised on carbon steel substrate. The electrochemical measurements (electrochemical impedance spectroscopy- EIS and anodic polarisation) were carried out in 3%NaCl solution, at 25 degrees C temperature during a 1500 hours period. The interpretation of the impedance spectra established an electrical equivalent circuit with four time constants for the tested carbon steel/alkyd film systems in electrolyte solution, fitted to the experimental data. The water and ions permeability of the films was determined. It resulted that for a good performance of the pigment, its fineness degree must be < 0.5 mu m and the adsorption capacity in 40-50% range. The white titanium dioxide pigment presents the highest beneficial effect on the alkyd film performance.
URI: http://hdl.handle.net/10553/48949
ISSN: 0035-3930
Fuente: Revue Roumaine de Chimie[ISSN 0035-3930],v. 51, p. 1079-1086
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