| Titre : |
Water borne alkyd emulsions - 2 |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Veeramani, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 106-108 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Polyalkydes
Revêtements en phase aqueuse:Peinture en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Waterborne alkyd dispersions/emulsions are known in the art and are commercially available but no specific information is available about the low VOC aqueous alkyd emulsions meant for Primers for porous and nonporous substrates and specifically for highly porous and chalky POP and cementitious substrates wherein conventionally available water borne binders showed poor adhesion. Preparation of water dispersible alkyd by incorporation of polyethylene glycol (PEG) into the alkyd resin is back bone and neutralization of acid groups to obtain water soluble alkyd dispersion.
An alkyd emulsion prepared by an emulsion inversion process (EIP) that includes forming an alkyd resin, neutralizing residual acid groups, adding surfactant and water so that an "Oil in Water" emulsion is formed. The alkyd dispersions thus formed are described as being useful in wood stains and common architectural paints. It is said that reacting a Hydroxy-functional alkyd emulsion with a water-dispersible poly iso-cyanate in a two component coating formulation, wherein the alkyd resin can be obtained from an oleic or fatty acid component, a polyvalent alcohol, a polyether polyol having a molecular Weight of 400 to 8,000, a monobasic carboxylic acid and a polycarboxyl ic acid or the anhydride. |
| Note de contenu : |
- Fast-drying clear base formulations
- Current technology
- Next-generation waterborne binder dispersions
- Fig. 1 : Advantages of combining alkyd with acrylic and/or urethane chemistries |
| En ligne : |
https://drive.google.com/file/d/1Cex2rHYNGYhbmS9Acnz5GikJz6yHPMVy/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37508 |
in PAINTINDIA > Vol. LXXII, N° 2 (02/2022) . - p. 106-108
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Water borne alkyd emulsions - 2 in PAINTINDIA, Vol. LXXII, N° 2 (02/2022)
