| Titre : |
Improved corrosion resistance based on APTES-grafted reduced sulfonated graphene/waterborne polyurethane coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Jian Luo, Auteur ; Jihu Wang, Auteur ; Shaoguo Wen ; Dayang Yu ; Youtong Wu ; Kai Sun |
| Année de publication : |
2018 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Aminopropyltriethoxysilane
Anticorrosifs
Anticorrosion
Essais de brouillard salin
Graphène sulfoné
Greffage (chimie)
Polymères en émulsion
Polyuréthanes
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this work, reduced sulfonated graphene (RSG) containing free amine groups was prepared and modified by 3-aminopropyltriethoxysilane (APTES) and reduction by diethanolamine (DEA). In addition, waterborne polyurethane (WPU) composite coatings were prepared by adding RSG as an anticorrosive filler to WPU. From the results of Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy (SEM), it can be found that sulfonated graphene was modified with APTES and successfully reduced by DEA. The SEM images illustrated that RSG was uniformly doped in the WPU. With increasing RSG content, the hydrophobicity of the RSG/WPU films increased due to the strong covalent interaction between RSG and WPU. Finally, the corrosion resistance of the coating was characterized by polarization curves and salt spray tests. |
| Note de contenu : |
- Materials
- Preparation of APTES-grafted SG
- Preparation of APTES-grafted RSG
- Preparation of RSG/WPU coatings
- Preparation of RSG/WPU films
- Characterization |
| DOI : |
10.1007/s11998-018-0048-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0048-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31138 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 5 (09/2018)
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