| Titre : |
Maleopiramic acid based water soluble stoving coating compositions |
| Type de document : |
texte imprimé |
| Auteurs : |
M. C. Shukla, Auteur ; S. Kulshreshtha, Auteur ; A. K. Vasishtha, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 27-30 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
'Peinture eau' Liant 'Alkyde résine' Préparation Diterpène 'Anhydride organique' Formulation 'Propriété chimique' mécanique' Feuil 'Etude expérimentale' 'Maléopimarique acide' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Water soluble alkyd was prepared from linseed oil, glycerol, maleopimaric acid and phthalic anhydride combination by monoglyceride process. For comparison purpose, two other water soluble alkyds were also prepared from trimellitic anhydride and phthalic anhydride combination, and phthalic anhydride alone, separately. Water soluble pigmented coating compositions were prepared from these watersoluble alkyds using water soluble methylated melamine formaldehyde resin as curing agent and TiO2 as pigment. The coating compositions were cured by heating at 160°C for 30 minutes. The film properties of all three pigmented coatings were determined and compared. It was observed that the overall mechanical and chemical properties of the films of coating based on water soluble alkyd made from maleopimaric acid and phthalic anhydride combination were superior over the films of coatings based on trimellitic anhydride and phthalic anhydride combinations, and phthalic anhydride alone. The films of coating based on phthalic anhydride alone gave comparatively poor mechanical and chemical film characteristics. |
| Note de contenu : |
- Experimental : - Materials - Preparation of water soluble alkyds from maleopimaric acid and phthalic anhydride - Preparation of water soluble alkyd from trimellitic anhydride and phthalic anhydride - Preparation of water soluble methylated melamine formaldehyde resin - Preparation of water soluble pigmented coating compositions - Characterisation of water soluble alkyds - Evaluation of film performance of coatings
- Results and discussion : - Scratch hardness - Flexibility - Water resistance - Acid resistance - Alkall resistance - Solvent resistance |
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https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13518 |
in PAINTINDIA > Vol. XLVI, N° 12 (12/1996) . - p. 27-30
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