PROTECTIVE BEHAVIOR AGAINST CORROSION OF POLY(N-METHYLANILINE) COATINGS ELECTROSYNTHESIZED ON STAINLESS STEEL SURFACE FROM SULFURIC ACID CONTAINING MONOMER SOLUTION

Thanks to their outstanding optical and electrical properties, potential polymers are one of the materials with the highest potential use in technological applications. In this study Poly(Nmethylaniline) coated stainless steel disc electrodes were obtained with N-methylaniline containing sulfuric acid solutions using constant potential, constant current and potentiodynamic techniques by electrodeposition. Corrosion behavior of polymer coated electrodes were investigated by direct current (DC) polarization technique and linear anodic cyclic voltammetry in different aqueous (NaCl and HCl) solutions. Electrochemical techniques branching test results showed that the electroactive PNMA coating can be used as a protective coating against rust for stainless steel. It was demonstrated that Nmethylaniline aniline and pyrrole with an aqueous solution of H2SO4 as the electrolyte can also show positive copolymers and various coatings.

Kaynakça

[1] Ai, L., Liu, L., Zhang, X., Ouyang, X., Ge, Z., ‘’ A facile and template-free method for preparation of polythiophene microspheres and their dispersion for waterborne corrosion protection coatings’’ Synthetic metals Vol (191), pp.41- 46, 2014.

[2] Döşlü, S., Mert, B., Yazıcı, B., ‘’Polyindole top coat on TiO2 sol–gel films for corrosion protection of steel’’ Corrosion science Vol (66), pp.51-58, 2013.

[3] Deberry, W., J. Electrochemical Society. Vol (132), pp.1022, 1985.

[4] Mortazavi, S., Yeganeh, M., Etamed, A., Saremi, M., ‘’ Corrosion behavior of polypyrrole (Ppy) coating modified by polyethylene glycol (PEG) doped ammonium bifluoride on AZ31 magnesium alloy’’ Progress in Organic Coatings Vol (134), pp.22-32, 2019.

[5] Sazou, D., Georgolios, C., ‘’ Formation of conducting polyaniline coatings on iron surfaces by electropolymerization of aniline in aqueous solutions’’ Journal of Electroanalytical Chemistry Vol (429) pp.81-93, 1997.

[6] Sumi, V., Arunima, S., Deepa, M., Sha, M., Riyas, A., Meera, M., Saji, V., Shibli, S., ‘’ PANIFe2O3 composite for enhancement of active life of alkyd resin coating for corrosion protection of steel’’ Materials Chemistry and Physics Vol (247), pp.122881, 2020.

[7] Yağan, A., Pekmez, N., Yıldız, A.,’’ Investigation of protective effect of poly(N-ethylaniline) coatings on iron in various corrosive solutions’’ Surface & Coatings Technology Vol (201) pp.7339- 7345, 2007.

[8] Yağan, A., ‘’ Investigation of Polypyrrole-Based Iron Electrodes as Supercapacitors’’ International Journal of electrochemical science Vol (14), pp. 3978-3985, 2019.

Kaynak Göster