| Titre : |
Cure behaviour and performance evaluation of segmented polyurethane-urea coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Dipak K. Chattopadhyay, Auteur ; K. V. S. N. Raju, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 47-56 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Segmented polyurethane ureas were prepared with varying polyether diols, diisocyanates and chain extenders. The viscoelastic properties of these films were evaluated through dynamic mechanical and thermal analyzer (OMTA).The mechanical film properties such as tensile strength, adhesion strength and hardness were measured and related to chemical composition and cohesion of the hard segment. The degree of phase mixing was found to be dependent on the synthetic ingredient structure. Water vapor transmission measurements were carried out to find out and correlate permeability with structures. The results indicate that the combined analysis of the hard segment cohesion helps in correlating the structure to property relationship. |
| Note de contenu : |
- Dynamic mechanical and tensile properties
- Adhesion, hardness, flexibility and impact resistance
- Water vapor permeation rate (WVPR) |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11634 |
in PAINTINDIA > Vol. LV, N° 8 (08/2005) . - p. 47-56
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Cure behaviour and performance evaluation of segmented polyurethane-urea coatings in PAINTINDIA, Vol. LV, N° 8 (08/2005)
