Investigation of corrosion protection performance of epoxy coatings modified by ZnO-Cr2O3 nanocomposites on mild steel surfaces | ||
| شیمى کاربردى روز | ||
| Article 5, Volume 13, Issue 49, December 2018, Pages 45-52 PDF (547.11 K) | ||
| Document Type: Original Article | ||
| DOI: 10.22075/chem.2018.14392.1406 | ||
| Authors | ||
| farnaz hajiyan pour1; mahdi rajabi2; mohsen behpour* 1; yaser jafari1 | ||
| 1university of kashan | ||
| 2Department of Analytical Chemistry, Faculty of Chemistry, University Of Kashan , I.R. Iran. | ||
| Receive Date: 05 April 2018, Revise Date: 09 September 2018, Accept Date: 27 September 2018 | ||
| Abstract | ||
| 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 ZnO-Cr2O3 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 ZnO-Cr2O3 nanoparticle into epoxy resin coating significantly decrease the corrosion current as well as the hardness of epoxy coatings. ZnO-Cr2O3 nanoparticle are able to cure the defect in epoxy resin and prevent the diffusion of corrosive electrolyte to mild steel substrate. | ||
| Keywords | ||
| Corrosion; ZnO-Cr2O3 nanoparticle; Epoxy coating; Mild steel | ||
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