| Titre : |
Microencapsulation of isocyanates. Characterization and storage stability of microcapsules in a polyester α, ω-ol |
| Type de document : |
texte imprimé |
| Auteurs : |
Evelyne Quérat, Auteur ; Lan Tighzert, Auteur ; Jean-Pierre Pascault, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 83-90 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Encapsulation
Isocyanates
Poly-e-caprolactone
Polycondensation
Polyesters
Stabilité au stockage
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The microencapsulation of toluene 2,4-diisocyanate dimer (di-TDI) was accomplished by interfacial polycondensation with ethylene diamine in cyclohexane and in a polycaprolactone; the influence of different parameters was discussed. The microcapsules obtained were characterized according to morphology and NCO content. Their behavior in two polycaprolactones was studied. The reaction between NCO and OH groups took place only after the isocyanate melting when encapsulation was well done. The stability of microcapsules stored in polycaprolactones at room temperature and 40 °C was also examined. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis - Analysis
- RESULTS AND DISCUSSION : Influence of different parameters of reaction on the microencapsulation process - Characterization of microcapsules - Behavior and reactivity of microcapsules in polycaprolactone - Effect of residual EDA - Stability of microcapsules in polycaprolactones |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18472 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 854 (03/1996) . - p. 83-90
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Microencapsulation of isocyanates. Characterization and storage stability of microcapsules in a polyester α, ω-ol in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 854 (03/1996)
