| Titre : |
Improved performance in a waterborne all-acrylic latex produced without PFAS |
| Type de document : |
texte imprimé |
| Auteurs : |
Mary C. Chervenak, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 43-51 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Formulation (Génie chimique)
Latex
Polyacryliques
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Revêtements en phase aqueuse:Peinture en phase aqueuse
Substances per- et polyfluoroalkylées -- Suppression ou remplacement
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
As demonstrated by two different test methods, an acrylic produced without PFAS can meet the surfactant leach resistance of a PFAS-containing acrylic developed specifically for this purpose. With one exception, other performance properties for the acrylic produced without PFAS, such as hiding power, gloss development, and dirt pick-up resistance, remained at least equivalent to those of older acrylic technologies. Although block resistance, a paint-performance property attributed to PFAS, was not as pronounced in the new acrylic produced without PFAS, performance was not completely absent. Paint performance may therefore be preserved through creative polymer design, and further modulated through formulation techniques and the incorporation of additives, effectively demonstrating that a more environmentally sound acrylic can be a viable alternative to conventional all-acrylic latexes. |
| Note de contenu : |
- Experimental procedures
- Dirt pick-up resistance evaluation
- Surfactant leach resistance evaluation ("water droplet" method)
- Surfactant leach resitance evaluation ("water extraction" method)
- Performance in exterior semigloss white base
- Table 1 : Exterior matte deep base paint formula utilized for surfactant leach resistance studies
- Table 2 : Exterior semigloss paint formula utilized for other paint performance studies
- Table 3 : Acrylic latexes evaluated in exterior matte and semigloss paint studies |
| En ligne : |
https://drive.google.com/file/d/1rZE9MJlMG_Amo-m2wpQhwG1-KWdwhaqA/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40649 |
in COATINGS TECH > Vol. 21, N° 2 (03-04/2024) . - p. 43-51
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