Anti-Corrosion Methods and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Purpose The purpose of this study is to improve the corrosion protection epoxy coating on ST37 steel through chemical interaction by incorporating NH2-MIL-53(Al), a metal-organic framework (MOF), as nanofi ler (1 Wt.%). Design/methodology/approach Scanning electron microscopy (SEM), transmission (TEM), Fourier-transform infrared spectroscopy and atomic force (AFM) were used identify MOFs applied coatings. Electrochemical impedance (EIS) potentiodynamic polarization (PDP) experiments in 0.1 M HCl assess Morphological analyses also performed validate tests. Findings SEM analysis showed no MOF aggregation TEM confirmed their proper dispersion within matrix due amine groups’ with epoxide groups. contact angle water was decreased from 90.7° 89.0° MOFs’ hydrophilicity. After incorporating, EIS tests substantial increase resistance (Rp) 14.09 377.35 MΩ. cm² after four weeks PDP reduction current 1.523 0.274 nA. cm − ². Originality/value This innovatively uses NH2-MIL-53(Al) nanofillers coatings enhance its protection. Unlike traditional studies, it focuses interactions between groups dispersion, density pore filling. Comprehensive characterization using SEM, energy dispersive X-ray spectroscopy, TEM, AFM, diffraction, thermogravimetric analysis, Brunauer–Emmett–Teller methods highlights novel approach

Language: Английский