[article]
| Titre : |
Two pack ambient cured polyurethane coating through modified and blend of polyols from oleo resinous sustainable resources |
| Type de document : |
texte imprimé |
| Auteurs : |
J. M. Shukla, Auteur ; N. K. Patel, Auteur ; M. R. Patel, Auteur ; K. H. Patel, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 85-104 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Two pack coating Polyuréthane Sustainable resources |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Polyuréthanes (PU) touch to our lives in unexpected way through the verstile class of thermosetting polymers and largely used in high performance surface coating and paints. It is also true that our absolute reliance is on naphta product as they are th only source of the chemical required, depletes very rapidly which inturn forces for the search of substitute. In view of this we planned our work by combining vegetable oil fatty acids and synthetic epoxy resin to modify and blend of polyols to produce polyurethane useful for surface coating. The purpose of such combination was to improve the mechanical properties such as hardness, impact strength, and flexibility of coated film. Polyurethane for surface coatings prepared from above modified and blend of polyols with different isocyanate adduct in different ratio were characterized by IR spectroscopy, thermo gravimetric method, end group analysis and mechanical methods to determine scratch, pencil, impact hardness, flexibility and chemical resistance to acid, alkali and salt. This study shows that the material holds promise for use as an effective anticorrosive coating. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6937 |
in PAINTINDIA > Vol. LVIII, N° 12 (12/2008) . - p. 85-104
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