The combined role of inhibitive pigment and organo-modified silica particles on powder coatings: Mechanical and electrochemical investigation
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Altres documents de l'autoria: Puig Brugal, Montserrat; Cabedo, Luis; Gracenea Zapirain, José Javier; Suay, Julio
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
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http://dx.doi.org/10.1016/j.porgcoat.2014.11.014 |
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Títol
The combined role of inhibitive pigment and organo-modified silica particles on powder coatings: Mechanical and electrochemical investigationData de publicació
2015Editor
ElsevierISSN
0300-9440Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0300944014003695Paraules clau / Matèries
Resum
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. [-]
Publicat a
Progress in Organic Coatings 80 (2015) 11–19Drets d'accés
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