| Titre : |
Effect of hydroxyl number and polymerization techniques on the properties of acrylic-melamine coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Dipak K. Chattopadhyay, Auteur ; D. B. Rohini Kumar, Auteur ; K. V. S. N. Raju, Auteur |
| Année de publication : |
2003 |
| Article en page(s) : |
p. 47-56 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Acrylic polyols with different hydroxyl value were synthesized by solution and suspension polymerization techniques by using butyl acrylate (BA), methyl methacrylate (MMA), styrene and hydroxy ethyl methacrylate (HEMA). These polyols were crosslinked with butoxy methyl-melamine in presence of acid catalyst.
The practical performance properties of crosslinked acrylic melamine coatings were evaluated. The mechanical properties, tensile properties, water vapor permeability, corrosion and chemical resistance properties have been studied. The results indicated increased crosslinking and glass transition temperature (Tg) with the increase of hydroxyl number in the polyols. Coatings based on polyols synthesized by suspension polymerization technique showed more flexible nature with higher gloss as compared to polyols synthesized by solution polymerization method. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of acrylic polyols - Characterization - Melamine resin - Formulation of acrylic-melamine clear and pigmented coatings - Tensile properties - Water Vapor Permeability (WVP) - Dynamic mechanical properties - Surface preparation and paint application - Mechanical properties - Corrosion resistance properties - Chemical resistance properties
- RESULTS AND DISCUSSION : Mechanical and tensile properties - Dynamic mechanical properties - Glass transition temperatures - Water vapor permeability - Corrosion resistance properties - Chemical resistance properties |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12152 |
in PAINTINDIA > Vol. LIII, N° 6 (06/2003) . - p. 47-56
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