The combined role of inhibitive pigment and organo-modified silica particles on powder coatings: Mechanical and electrochemical investigation
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Otros documentos de la autoría: Puig Brugal, Montserrat; Cabedo, Luis; Gracenea Zapirain, José Javier; Suay, Julio
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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http://dx.doi.org/10.1016/j.porgcoat.2014.11.014 |
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Título
The combined role of inhibitive pigment and organo-modified silica particles on powder coatings: Mechanical and electrochemical investigationFecha de publicación
2015Editor
ElsevierISSN
0300-9440Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0300944014003695Palabras clave / Materias
Resumen
The addition of organo-modified silica particles (OSP) to powder coating containing zinc molybdenum phosphate pigment (ZMP) has been investigated. The OSP were directly incorporated at different concentrations (1, ... [+]
The addition of organo-modified silica particles (OSP) to powder coating containing zinc molybdenum phosphate pigment (ZMP) has been investigated. The OSP were directly incorporated at different concentrations (1, 2.5, 3.5 and 4.5 wt%) in a polyester powder monolayer coating with 10 wt% ZMP. The adhesion and anticorrosion properties were evaluated by means of adhesion studies and different electrochemical techniques: electrochemical impedance spectroscopy (EIS) and an accelerated cyclic electrochemical technique (ACET). The optimum quantity of OSP that gave maximum anticorrosive performance of the coating system was determined (1.0%), however two opposite effects of addition on the coatings led to a reduction of anticorrosive properties for higher contents. Finally, the electrochemical behaviour of the optimized combined system was compared to the effects achieved when both additives were separately added to powder coatings by means of an additional electrochemical test. [-]
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Progress in Organic Coatings 80 (2015) 11–19Derechos de acceso
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