| Titre : |
Drying activity of oxovanadium(IV) 2-ethylhexanoate in solventborne alkyd paints |
| Type de document : |
texte imprimé |
| Auteurs : |
Ondrej Preininger, Auteur ; Jan HonzÃcek, Auteur ; Petr Kalenda, Auteur ; Jaromir Vinklà rek, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 479-487 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Fourier, Spectroscopie infrarouge à transformée de
Oxydes de vanadium
Polyalkydes
Revêtement en phase solvant:Peinture en phase solvant
SiccatifsUn siccatif est une substance qui joue un rôle de catalyseur en accélérant le séchage ou durcissement (polymérisation) d'un matériau tel une huile ou une peinture à base d'huile (pour le bâtiment ou les artistes).
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Oxovanadium(IV) 2-ethylhexanoate was established as a new primary drier for alkyd-based paints. A series of experiments has demonstrated an excellent drying activity toward solvent-borne alkyd resins of different oil length at considerably lower metal concentration than optimal for commercial cobalt(II) 2-ethylhexanoate. The behavior in real paint was simulated on formulations bearing inhibitor of autooxidation. The detailed studies of the drying process have shown that the relatively slow initial step of autooxidation reaction, when compared with cobalt compounds, is compensated for by the absence of the induction times. Furthermore, the active oxovanadium(IV) species are not consumed during the drying processes as evidenced by EPR spectroscopic measurements. |
| Note de contenu : |
- EXPERIMENTAL : Materials and chemicals - Synthesis of oxovanadium(IV) 2-ethylhexanoate (VO-octoate) - Film preparation - Film drying time - Determination of film hardness - Measurements of coloration - Time-resolved FTIR experiments - EPR spectroscopy
- RESULTS AND DISCUSSION : Synthesis and characterization of VO-octoate - Drying performance of VO-octoate - Coloration of the alkyd coating dried by VO-octoate - Kinetic experiments - EPR spectroscopic measurements |
| DOI : |
10.1007/s11998-015-9779-8 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9779-8.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26288 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 3 (05/2016) . - p. 479-487
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