A Comparative Study of Anticorrosion Paints Based on Silicone-Urethane Binders: a Multilayer Primer
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- Tamboura, M., Mikhailova, A.M. & Jia, M.Q. Silicon (2014) 6: 45. doi:10.1007/s12633-013-9149-z
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Using zinc phosphate, micaceous iron oxide and their combination in the composition of the undercoat, a series of novel multilayer paint systems based on different silicone-urethane binders with the same R/Si and Ph/R ratio have been formulated. The developed paint systems showed excellent mechanical, adhesion and chemical properties. Scanning Electron Microscopy (SEM) analysis of the surface of the paint systems shows no fractures or holes. The electrochemical impedance spectroscopy (EIS) evaluation of the developed paint systems confirms their excellent protective and anticorrosion properties, especially for Silicone-Urethane-Urea (SPUU) based paint systems with a combination of pigments in the composition of the undercoat. SPUU-based paint systems show low water uptake. The new multilayer silicone-urethane-based paint systems can be used as a anticorrosion primer.