| Authors | Mahdi Yeganeh-Taher Rabizadeh-Mohammad Sajad Rabiezadeh-Maryam Kahvazizadeh-Hossein Ramezanalizadeh |
|---|---|
| Journal | Polymer Bulletin |
| Paper Type | Full Paper |
| Published At | 2022-5-17 |
| Journal Grade | ISI (WOS) |
| Journal Type | Typographic |
| Journal Country | Germany |
Abstract
The present study aims to investigate the loaded mesoporous silica with sulfamethazine and the effect of its dispersion in the epoxy coating on the corrosion behavior of coated mild steel. The composite coating was synthesized by mixing 1wt. % mesoporous silica without (Mes) and with sulfamethazine (Mes-S) and an epoxy polymer. Electrochemical impedance spectroscopy (EIS), field emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS) were used to analyze corrosion resistance of the epoxy coating containing Mes and Mes-S. Results revealed the higher corrosion resistance of epoxy/Mes-S in the NaCl solution after 1000 h of immersion compared to epoxy/Mes, indicating higher barrier behavior of epoxy/Mes-S due to the inhibition effect of sulfamethazine. Specifically, epoxy/Mes-S exhibited a Rct of 67 kΩ cm2 after 1000 h of immersion, while the epoxy/Mes and epoxy showed Rct of 9.8 and 7 kΩ cm2, respectively. Besides, it was shown that the epoxy/Mes-S coating could inhibit the growth of E. coli as the antibacterial coating due to the effect of sulfamethazine on the bacteria.