| Titre : |
Can waterborne acrylics replace solventborne alkyds in wood coatings ? |
| Type de document : |
texte imprimé |
| Auteurs : |
Anne-Sophie Hesry, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 24-26 |
| Langues : |
Anglais (eng) |
| Catégories : |
Bois -- Revêtements
Polyacryliques
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements organiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Wood has long been used as a sustainable building material for thousands of years ; however, it needs to be coated with a variety of products giving it protection against the elements and for decorative effect. Solvent-based alkyd coatings have proved to be very effective at protecting wood against the negative effects of the environment and solvent-based (SB) alkyds are still widely used for the production of high quality gloss paints and varnishes. However, the use of these materials is now being curtailed due to their high solvent content and the need to comply with legislation restricting the levels of Volatile Organic Compounds (VOCs) in decorative paints. For example, the European Directive 2004/42/EC now limits the VOC content in gloss trim paints to 300g/lit, see Table 1 for more details. In order to achieve an acceptably low viscosity at high solids, it has been necessary to use lower molecular weight and increased oil content alkyd resins with the consummate poor drying and increased yellowing. In response to this, paint producers are now moving towards waterborne (WB) systems such as alkyd emulsions and acrylic dispersions with much lower VOC levels. |
| En ligne : |
https://drive.google.com/file/d/1JivrqS7_FTnKpgo7i2ye-AM-PSw3BDJL/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18348 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 203, N° 4583 (04/2013) . - p. 24-26
Aller sur edunet
Accueil
Can waterborne acrylics replace solventborne alkyds in wood coatings ? in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4583 (04/2013)
