Titre : |
High cleanability paints based on pigment adsorbing acrylic binders |
Type de document : |
texte imprimé |
Auteurs : |
Anne Koller, Auteur |
Année de publication : |
2013 |
Article en page(s) : |
p. 20-22 |
Langues : |
Anglais (eng) |
Catégories : |
Absorbants et adsorbants Encapsulation Liants Microscopie électronique à balayage Polyacryliques Résistance à la salissure Résistance aux taches Revêtements organiques Revêtements:Peinture
|
Index. décimale : |
667.2 Colorants et pigments |
Résumé : |
Polymer-pigment composites deliver enhanced hiding efficiency in many point systems and improve film barrier properties. Barrier properties such as stain resistance are due to better film structure because pigments are encapsulated with carefully engineered adsorbing polymers. Also there is less inorganic pigment sticking at the surface of the paint film resulting in a smoother point surface and improved dirt pick up resistance.
Engineered polymer particles, which permanently adsorb on to inorganic pigments in paints and in particular on to titanium dioxide, were recently developed. They allow the formation of polymer/pigment composite particles as represented in figure 1.
When used in a coating, these polymer/pigment composite particles are more homogeneously distributed than TiO2 in a conventional coating based on a non-adsorbing polymer. Such behaviour is shown in figure 2. The higher brightness of the white TiO2 particles in the conventional coating compared to the polymer/pigment composite coating proves that the conventional coating has more pigment particles protruding at the surface of the coating film than for the polymer/pigment composite coating. The better encapsulation of pigments by adsorbing polymer improves barrier properties as will be shown in the selected examples. |
Note de contenu : |
- Coating film formation based on polymer/pigment composite particles and barrier properties
- Stain resistance test method
- Table 1. Semi-gloss paints on soft pure acrylic binder and on soft pure acrylic adsorbing polymer A
- Table 2. Semi-gloss/matte paints based on high quality hard pure acrylic binder and on hard pure acrylic adsorbing polymer B
- Table 3. Masonry paints based on a pure acrylic binder and on soft adsorbing polymer A |
En ligne : |
https://drive.google.com/file/d/12jeCMIpb48t9U3kx7-2xBRsa-LOaWs1K/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19205 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4586 (07/2013) . - p. 20-22