| Titre : |
Corrosion resistance of a self-curing waterborne epoxy resin coating |
| Type de document : |
texte imprimé |
| Auteurs : |
Gongwen Tang, Auteur ; Ting Ting Ren, Auteur ; Zhishan Yan, Auteur ; Linrong Ma, Auteur ; Xianhui Pan, Auteur ; Xiangyu Hou, Auteur ; Xin Huang, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 895-904 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Auto-réticulation
Caractérisation
Diisopropoxyde bisacétylacétonate de titane
Epoxydes
Résistance chimique
Revêtements -- Propriétés physiques
Revêtements -- Propriétés thermiques
Revêtements organiques
Revêtements protecteurs
Spectroscopie d'impédance électrochimique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Waterborne coatings have gained more and more attention as a method to protect the environment. However, the application of waterborne coatings to metals, especially for sufficient long-term protection in harshly corrosive environments, is still limited. Here, we report a self-curing waterborne coating with good corrosion resistance. First, a self-curing waterborne epoxy resin (SWEP) was synthesized by a chemical reaction between the epoxy resin and titanium diisopropoxide bisacetylacetonate in water. The structural characterizations via Fourier transform infrared spectroscopy and 13C nuclear magnetic resonance spectrsocopy confirmed the successful preparation of the SWEP resin. Differential scanning calorimetry and thermogravimetric analysis showed that the SWEP resin could be cured by heating without the use of any curing agents, and the cured coating exhibited good thermal resistance. The mechanical properties of the cured coatings were discussed in the context of the corresponding standards. The results confirmed that the physical properties of the SWEP coating were as good as those of a traditional two-component waterborne epoxy resin (DCWEP) coating. The chemical resistance analysis revealed that the water, acid and alkaline resistances of the SWEP coating all have significant improvements compared to those of the DCWEP coating. The electrochemical impedance spectroscopy and potentiodynamic polarization test implied that the SWEP coating provided better corrosion protection for metal substances than the DCWEP coating. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Preparation of the self-curing waterborne epoxy resin - Preparation of SWEP coatings - Characterization
- RESULTS AND DISCUSSION : Synthesis of the SWEP coating - Thermal properties - Physical properties - Chemical resistance - Electrochemical impedance spectroscopy (EIS) |
| DOI : |
10.1007/s11998-018-00166-2 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00166-2.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32600 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 895-904
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