| Titre : |
Extracts of curcumin-incorporated hybrid sol–gel coatings for the corrosion mitigation of mild steel in 0.5 M HCl |
| Type de document : |
texte imprimé |
| Auteurs : |
Nur 'Amirah Ishak, Auteur ; Tuan Sherwyn Hamidon, Auteur ; Tan Zi-Hui, Auteur ; M. Hazwan Hussin, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 1515-1535 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Caractérisation
Curcumine
Extraction (chimie)
Hydrophobie
Métaux -- Revêtements protecteurs
Sol-gel, Procédé
Surfaces -- Analyse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Curcumin was extracted from turmeric using two solvents (ethanol and water), doped with hybrid (TEOS-APTES) sol–gel coatings for the corrosion protection of mild steel. Characterization of curcumin extracts was carried out using integral analyses, namely FTIR, NMR, DSC, TGA, total phenolic content, and antioxidant assay. Corrosion-inhibitive ability of coatings doped with curcumin extracts (25, 50, 75, and 100 ppm) were evaluated via electrochemical impedance spectroscopy and potentiodynamic polarization measurements. It was evident that sol–gel incorporated with 100 ppm ethanol extract provided more than 90% of inhibition efficiency. Coated mild steel surfaces were characterized using FTIR, SEM/EDX, and water contact angle analysis where coatings incorporated with curcumin extracts were found to be hydrophobic (θ = 100.2°). |
| Note de contenu : |
- EXPERIMENTAL : Collection of turmeric - Extraction of curcumin - Characterization of curcumin - Corrosion inhibition analysis - Surface analyses
- RESULTS AND DISCUSSION : Fourier transform infrared (FTIR) spectroscopy measurement - Nuclear magnetic resonance (NMR) spectroscopy measurement - Thermal gravimetric analysis (TGA) measurement - Differential scanning calorimetry (DSC) measurement - Total phenolic content measurement - Ferric reducing power measurement - High-performance liquid chromatography (HPLC) measurement - Corrosion inhibition analysis results |
| DOI : |
https://doi.org/10.1007/s11998-020-00364-x |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00364-x.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34957 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 6 (11/2020) . - p. 1515-1535
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Extracts of curcumin-incorporated hybrid sol–gel coatings for the corrosion mitigation of mild steel in 0.5 M HCl in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
