Nghiên cứu khả năng chống ăn mòn của nanocompozit poly(anilin-Co-O-toluidin)/-Fe2O3

Abstract

Poly(aniline-co-o-toluidine) (PAT)/Fe₂O₃ (PATF) nanocomposite were synthesized by electrochemical methods on 316L stainless steel electrode. Aniline (ANi) and o-toluidine (o-Tol) were dissolved in 0.5 M H₂SO₄ and α-Fe₂O₃ with different mass ratios were added in the solution. The solution was stirred by speed of 200 rpm during the process. The obtained nanocomposite material were washed by double distilled water to pH = 7, dried and then pulverized. The composite were dissolved in N,N-dimethylformamide (DMF) in 24 hours. The DMF containing nanocomposite was coated on CT3 carbon steel electrodes, the electrodes were dried from 70 to 80 ^oC for 24 h. Anticorrosion properties of the coating were measured by electrochemical techniques in 3 % NaCl solution at room temperature, were shown by potential corrosion (E_cor), corrosion current (I_corr) and polarization resistance (Rp) parameters.

Keywords. Corrosion, nanocomposite, poly(aniline-co-o-toluidine), electrochemical, Fe₂O₃