| Titre : |
PURs based on hydrogenated castor oil |
| Type de document : |
texte imprimé |
| Auteurs : |
Vilas D. Athawale, Auteur ; P. S. Pillary, Auteur ; S. L. Kolekar, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 18-24 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Adhésion
Brillance (optique)
Diisocyanate d'isophorone
Diisocyanate de diphénylméthylène
Huile de ricin et constituants
Polyesters
Polyuréthanes
Résistance au chocs
Résistance chimique
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements:Peinture
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
One component polyurethanes based on isophorone diisocyanate (MDI) and polyester polyol were prepared. The synthesized polyurethanes were studied for their coating properties viz., hardness, gloss, adhesion, impact resistance, flexibility, water repellency,moisture permeability and chemical resistance. The IPDI based polyurethane showed better hardness, gloss, impact resistance than that of MDI based polyurethane. However, MDI based polyurethane showed relatively good moisture permeability. |
| Note de contenu : |
- Experimental
- Synthesis of low cost PUR coating
- Monitoring coatings properties
- PUR cured by deblocking the ε-caprolactum
- IR showed all the bands corresponding to urethane network
- IPDI based polyurethane showed better hardness than the MDI based
- Improved gloss
- 100 % adhesion
- High impact resistance by optimum hardness and flexibility
- Excellent flexibility due to the soft segment of the polyol
- 50% water repellency
- Hydrophilic chain of hydrogenated castor oil polyester polyol in PUR restricts the swelling
- High crosslinking density prevents the penetration of the solvents into the polymer matrix
- Results at a glance |
| En ligne : |
https://drive.google.com/file/d/1HBL0dIHg5w763zVzCAaU5RUXjsR1wnwp/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24216 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/01 (01-02/2001) . - p. 18-24
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