| Titre : |
Synthesis and characterisation of polyurethane coatings based on trimer of isophorone diisocyanate (IPDI) and monoglycerides of oils |
| Type de document : |
texte imprimé |
| Auteurs : |
Vikas V. Gite, Auteur ; R. D. Kulkarni, Auteur ; D. G. Hundiwale, Auteur ; U. R. Kapadi, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 117-122 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Diisocyanate d'isophorone
Polymères -- Synthèse
Polyuréthanes
Résistance chimique
Revêtements organiques
TrimèresEn chimie, un trimère est un objet moléculaire ou une structure composée de l'association de 3 éléments de base semblables entre eux.
C'est un composé chimique issu de la réaction entre trois molécules identiques (appelées monomères).
La réaction chimique qui produit des trimères est appelée trimérisation.
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Monoglycerides (MGs) of four oils (castor, linseed, soybean and sesame) were prepared. They were reacted with a trimer in definite proportions to prepare polyurethane (PU) coatings. These coatings were applied in the form of thin films on tin plates and analysed for various coating properties such as gloss, scratch resistance, flexibility properties and physicochemical tests. A highly cross-linked product was obtained due to the higher functionality associated with MGs compared with their molecular weight. The trimer also imparted cross-linking due to its trifunctionality, and a hard yet flexible, tough, glossy polyurethane coating was obtained. |
| Note de contenu : |
- MATERIALS AND METHODS : Diisocyanate - Catalysts - Synthesis of trimer of IPDI - Preparation of monoglycerides - Preparation of PU coating panels and sheets - Coating properties
- RESULTS AND DISCUSSION : Characterisation of the trimer of IPDI - Coating properties - Chemical resistance - Solvent absorption
- Table 1 : Some characteristics properties of oils utilised in this study
- Table 2 : Table Hydroxyl value and percentage hydroxyl content of monoglycerides of oils
- Table 3 : Coating properties of polyurethane
- Table 4 : Chemical resistance of polyurethanes (in percentage weight loss)
- Table 5 : Solvent absorption |
| DOI : |
10.1007/BF02699641 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699641.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5382 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B2 (06/2006) . - p. 117-122
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Synthesis and characterisation of polyurethane coatings based on trimer of isophorone diisocyanate (IPDI) and monoglycerides of oils in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B2 (06/2006)
