عنوان مقاله :
Investigation of corrosion protection performance of epoxy coatings modified by ZnO-Cr2O3 nanocomposites on mild steel surfaces
پديد آورندگان :
hajiyan pour ، farnaz University Of Kashan - Faculty of Chemistry - Department of Analytical Chemistry , rajabi jaafarabadi ، mahdi University Of Kashan - Faculty of Chemistry - Department of Analytical Chemistry , behpour ، mohsen University Of Kashan - Faculty of Chemistry - Department of Analytical Chemistry , jafari ، yaser University Of Kashan - Faculty of Chemistry - Department of Analytical Chemistry
كليدواژه :
Corrosion , ZnO , Cr2O3 nanoparticle , Epoxy coating , Mild steel
چكيده فارسي :
In this study, ZnO-Cr2O3/epoxy nanocomposites are employed to protect mild steel corrosion in 3.5% NaCl solution. The corrosion performances of the nanocomposites coatings were evaluated by using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization measurements. Electrochemical measurements show that ZnOCr2O3 nanocomposite coated has good inhibitive properties with PE% of ~99% at 0.04 gr/L concentration on mild steel corrosion in 3.5% NaCl solution. The results indicated that the incorporation of ZnOCr2O3 nanoparticle into epoxy resin coating significantly decrease the corrosion current as well as the hardness of epoxy coatings. ZnOCr2O3 nanoparticle are able to cure the defect in epoxy resin and prevent the diffusion of corrosive electrolyte to mild steel substrate.
عنوان نشريه :
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