| Titre : |
Polyurethane coatings based on hydroxylated polyester resin |
| Type de document : |
texte imprimé |
| Auteurs : |
L. T. Gangotri, Auteur ; Prashant V. Lande, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 69-78 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Hydroxylation
Polyesters
Polyuréthanes
Revêtements:Peinture
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Five different hydroxyl terminated polyester resis of 2000 molecular weight were prepared using a combination of propylene glycol and glycerol giving varying number of hydroxyl groups on the polymer chain. Polyurethane coatings were prepared based on these hydroxylated polyester resins and evaluated for their various properties. It was found that the scratch hardness increased from 1400 gms to 1700 gms. BY increasing the number of hydroxyl groups on the polymer chain. The use of excess of TDI (toluene diisocynate) was found to increase the scratch hardness up to 22gms. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7020 |
in PAINTINDIA > Vol. LVIII, N° 10 (10/2008) . - p. 69-78
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