| Titre : |
Influence of TiO2 on alkyd emulsions |
| Type de document : |
texte imprimé |
| Auteurs : |
Kathrin Lehmann, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 39-50 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Brillance (optique)
Dioxyde de titane
Formulation (Génie chimique)
Liants
Oxydation
Pigments inorganiques
Polyalkydes
Revêtements en phase aqueuse -- Séchage:Peinture en phase aqueuse -- Séchage
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Decorative paint manufacturers have not only developed low-emission or VOC-free indoor emulsion paints, but are also showing growing interest in replacing conventional decorative paints based on long-oil alkyds with aqueous high-gloss emulsion paints without the addition of solvents. This could be of particular interest in future for indoor applications. This paper discusses the influence of various titanium dioxide pigments on the drying behaviour of alkyd emulsions. One area of emphasis in this context is the phenomenon of drying retardation following storage of the paints. A comparative test of white-pigmented paints based on a long-oil alkyd is presented |
| Note de contenu : |
- Decorative high gloss emulsion paints
- Selection of raw materials : Commercial alkyd emulsions often display stability problems - Insufficient pigment stabilisation and incompatibility - One alkyd emulsion shows stability, high degree of gloss and weak yellowish tone
- Results : Determination of the drying time after 12 weeks - Determination of drying retardation according to inorganic surface treatment - Drying retardation is relatively independently of the pigment group - Cobalt is no longer available in the paint film to catalyse the oxidative drying - Optical properties : Brightness L* and tone b* : - Optical parameters are influenced by the use of a TiO2 and by the selected binder - Overall formulation determine the gloss
Summary : Alkyd emulsions represent a suitable alternative - Acrilic emulsion paints are heavily dependent in their degree of gloss on the TiO2 pigment used - Pigment recommendation for making a smooth transition from one system to the other - Alkyd emulsion paints show drying retardation - Advantages of alkyd emulsions. |
| En ligne : |
https://drive.google.com/file/d/1OZwlkJrh0H1o8t1iH8q6kSQgE7GZ4uMh/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11220 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 11/99 (11/1999) . - p. 39-50
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Influence of TiO2 on alkyd emulsions in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/99 (11/1999)
