Effect of nano-TiO2 particles size on the corrosion resistance of alkyd coating

Autor: S.T. Keera, M.A. Deyab
Rok vydání: 2014
Předmět:
Zdroj: Materials Chemistry and Physics. 146:406-411
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2014.03.045
Popis: The coating system containing various sizes (∼10, 50, 100, 150 nm) of nano-TiO2 were prepared and investigated for corrosion protection of carbon steel in 1.0 M H2SO4 using polarization, EIS and transmission electron microscopy (TEM) techniques. It was found that nano-TiO2 particles improved the corrosion resistance of alkyd coatings. The corrosion resistance occurs via physical adhesion on the metal surface. O2 and H2O permeability of coating decreased with decrease in the nano-TiO2 size. The inhibition efficiency was found to increase with decreasing the size of nano-TiO2 and with decreasing the temperature.
Databáze: OpenAIRE