Titre : |
The impact of microfibrillated cellulose on the rheology of water-based acrylic satin paint upon tinting |
Type de document : |
texte imprimé |
Auteurs : |
Otto Soidinsalo, Auteur ; Harrison C. Gallantree-Smith, Auteur ; Scott Mouw, Auteur |
Année de publication : |
2024 |
Article en page(s) : |
p. 50-57 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Cellulose La cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules. Epaississants Formulation (Génie chimique) Liants en phase aqueuse Polyacryliques Polyuréthane éthoxylé modifié de façon hydrophobe Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs Rhéologie
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Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Associative thickeners are commonly used to thicken water-based coatings. Their mechanism of action is based on the hydrophobic interaction between the hydrophobic polymer groups as well as with the surface of the binder latex particles. It is commonly known that associative thickener-based formulations are prone to viscosity loss upon tinting due to the surfactants present in the tinting systems, leading to poorer sag resistance.
In this work, the eff ect of an insoluble microfi brillated cellulose (MFC) was studied on the prevention of viscosity loss on tinting with a deep tone base, formulated with two different hydrophobically modified polyurethane associative thickeners (HEURs), combined with a non-associative MFC thickener. The formulations were evaluated in terms of rheology, viscosity, sag resistance, fl ow/leveling, and gloss.
We will demonstrate how MFC can improve the resistance to viscosity loss upon tinting without sacrifi cing the fl ow/leveling properties of the coating. |
Note de contenu : |
- Effect of MFC on the rheology of an acrylic binder
- Effect of MFC on the acrylic satin paint formulation
- Table 1 : Acrylic binder formulations
- Table 2 : Variance of the formulations under 3-ITT testing
- Table 3 : Acrylic deep base formulations |
En ligne : |
https://drive.google.com/file/d/1VdSzCzQdjZhDXcObo6Fo-LsDtp9LujPD/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41452 |
in COATINGS TECH > Vol. 21, N° 4 (07-08/2024) . - p. 50-57