Study the effect of addition polyaniline Nano magnetic with epoxy resin paint on corrosion rate of carbon steel in HCl media

Abstract

Nanomagnetic Fe3O4 and polyaniline were prepared and checked by using the FT-IR spectroscopy technique, and the results approved the preparation of these substances. The nanoscale nature of these prepared materials was also examined using the electronic scanning microscopy technique (SEM), and the results indicated that the particle size of the magnetite and the prepared polymer Less than 100 nm. This product was mixed with epoxy resin paint in different percent's nnn (5-25) %. The mixtures were used separately as coating on carbon steel (C1020) alloy. The inhibition efficiencies of coated carbon steel were investigated in 0.1M HCl media using Electrochemical Impedance Spectroscopy EIS. The results showed that good efficiency compare with using epoxy resin paint alone, because the epoxy resin combined with polyaniline and magnetized is highly adherent to the surface of the alloy and increases its resistance to corrosion.