| Titre : |
Highly functional biobased polyols and their use in melamine–formaldehyde coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Thomas J. Nelson, Auteur ; Bryan Masaki, Auteur ; Zachary Morseth, Auteur ; Dean C. Webster, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 757-767 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Biopolymères -- Synthèse
Catalyseurs
Copolymère mélamine-formaldéhyde
Email
Polyols
Réticulation (polymérisation)
Revêtement émail:Peinture-émail
Revêtements
Soyate de sucrose
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Highly functional sucrose soyate polyol (SSP) resins were synthesized by ring-opening epoxidized sucrose soyate with methanol or ethanol and were subsequently crosslinked with a melamine–formaldehyde (MF) resin in the presence of an acid catalyst or blocked acid catalyst. The biobased polyols were characterized by Fourier transform infrared spectroscopy, gel permeation chromatography, proton nuclear magnetic resonance spectroscopy, Brookfield viscosity, and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The thermal properties of the biobased MF coatings were studied using differential scanning calorimetry and dynamic mechanical analysis. As controls, a soybean oil polyol (SBOP) with lower functionality and a commercial polyester polyol were studied for comparison. Overall, MF coatings formulated with SSPs showed superior properties to coatings formulated with SBOP and comparable properties to the commercial polyester which was attributed to the high hydroxyl functionality. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of SSPs - Characterization of polyols - Formulation and application procedures - Coating evaluation
- RESULTS AND DISCUSSION
- SYNTHESIS OF SSPs
- POLYOL RESIN PROPERTIES
- COATINGS PROPERTIES
- BLOCKED ACID CATALYST STUDIES |
| DOI : |
10.1007/s11998-013-9524-0 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9524-0.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19815 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 6 (11/2013) . - p. 757-767
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