Titre : |
A lasting design |
Type de document : |
texte imprimé |
Auteurs : |
Matthew S. Gebhard, Auteur |
Année de publication : |
2003 |
Article en page(s) : |
p. 24-28 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Formulation (Génie chimique) Latex Milieu hétérogène Polymères Revêtements en phase aqueuse:Peinture en phase aqueuse
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Pressure to further reduce VOC emissions has had a negative impact on the exterior durability characteristics of emulsion polymer coatings. But heterogeneous polymer morphologies are able to address these shortcomings.
Over the years the optimisation of waterborne emulsion polymers has resulted in waterborne coatings with excellent exterior durability and significantly reduced solvent emissions versus solventborne coatings.
In recent years, pressure to further reduce emissions has necessitated the use of softer polymer compositions that can negatively impact gloss and tint retention, and dirt pick up resistance. The use of heterogeneous polymer morphologies are addressing these short comings. However care must still be taken not to affect paint durability.
The development of low solvent emission thickeners and mildewcides has allowed further reduction in paint emissions. |
Note de contenu : |
- In the beginning
- Low VOC formulation issues
- Homogeneous polymer controls
- Heterogeneous polymers
- TABLE : 1. Experimental paint formulation
- FIGURES : 1. % 60 degree gloss for homogeneous latex polymers at various - 2. Delta b' for homogeneous latex polymers at various Tg'S - 3. Delta L' for homogeneous latex polymers at various Tg'S - 4. % 60 degree gloss for heterogeneous latex polymers - 5. Delta b' for heterogeneous latex polymers - 6. Delta L' for heterogeneous latex polymers |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27964 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 193, N° 4460 (01/2003) . - p. 24-28