Mojtaba Bagherzade - Material Research School, NSTRI, 81465-1589, Isfahan, I.R. IRAN
Morteza Abbasi - Department of Material engineering, Islamic Azad University of Shahreza, I.R. IRAN

In this work, anti-corrosion behavior of synthesized water soluble poly vinyl alcohol/graphene (PVA/G) nanocomposite was investigated. Firstly, prepared PVA/G was characterized by FTIR,SEM-EDX, and XRD techniques. Then, electrochemical techniques such as open circuit potential (OCP), potentiodynamic polarization and electrochemical impedance (EIS) were employed to study the corrosion protection performance of PVA/G on carbon steel in NaCl 3.5%environment. The role of concentration of PVA/G, incubation time of film formation on the carbon steel corrosion has been investigated. Observed results showed the PVA/G acts as mixedtype inhibitor and could serve as an effective corrosion inhibitor for carbon steel in NaCl 3.5%environment. Surface morphology of the protected carbon steel specimen with PVA/G was investigated by SEM and EDXA that confirms the protection of mild steel surface by strong adsorption of nanocomposite. Observed results will be presented and discussed.

Corrosion, Polyvinyl alcohol, Graphene, EIS, Tafel