Titre : |
Acrylic latex paints : a comparison study (part I) |
Type de document : |
texte imprimé |
Auteurs : |
Manfred Schwartz, Auteur |
Année de publication : |
2001 |
Article en page(s) : |
p. 112-119 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Applications extérieures Chlorure de polyvinyle Dispersions et suspensions Etudes comparatives Formulation (Génie chimique) Latex Liants Polyacryliques Polymères -- Détérioration Revêtements en bâtiment:Peinture en bâtiment Revêtements en phase aqueuse:Peinture en phase aqueuse Revêtements organiques
|
Index. décimale : |
667.6 Peintures |
Résumé : |
Dispersion or emulsion paints are formulated with a variety of chemically different types of binders, which in most cases can be classified as acrylic esters copolymers or vinyl ester copolymers. A suitable binder is necessary to give a high quality paint. Experiments on masonry paints in the PVC range of 35 to 55% show that after many years of outdoor exposure no significant difference between straight acrylic and acrylic/styrene copolymers can be found. More important is the optimisation of the pigment volume concentration and the pigment/extender combination than the type of the binder. |
Note de contenu : |
- Various acrylic copolymer dispersions with similar particle size
- Paint formulations
- Water is the main source of damage a coating
- Neutralisation of binders with NaOH gives better WA and WVTR results
- Outdoor weathering results
- Colour changes due to outdoor exposure
- Yellowing of acrylic based paints is not better than acrylic/styrene
- Chalking due to out door exposure
- TABLES : 1. Polymer dispersions (Tg = glass transition temperature) - 2. Paint formulations (solid contents of the paints : 58%) - 3. Results of laboratory tests made with paints of PVC 40% - 4. Results of laboratory tests made with paints of PVC 50% - 5. Results of laboratory tests made with paints of PVC 60% - 6. Dirt pick-up and polymer degradation/chalking of the paint
- FIGURES : 1. Colour change of masonry paint at PVC 50% by outdoor exposure - 2. L*-value of masonry paints at PVC 50% as function of outdoor exposure - 3. b*-value of masonry paints at PVC 50% as function of outdoor exposure |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24210 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 03/01 (03/2001) . - p. 112-119