| Titre : |
Additives to control the rheology of paints and coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Leo J. Procopio, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 26-32 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Epaississants
Latex
Revêtements -- Additifs:Peinture -- Additifs
Rhéologie
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Formulating paints and coatings to provide the right balance of properties is a complex undertaking. Getting the rheology profile correct is just one important task on the formulator’s to-do list, but it is crucial to the ultimate success of the coating.
The rheology profile influences properties of the coating throughout its lifetime, from manufacture, storage, mixing, and application, to the resulting film properties. To control and optimize the rheology of liquid coatings, the formulator typically relies on additives, often referred to as rheology modifiers, thickeners, and thixotropes.
This article reviews some of the basics of rheology and rheological additives and includes comments from a roundtable discussion with industry experts on existing challenges and new developments. |
| Note de contenu : |
- Basics of rheology
- Shear rate and physical processes
- Targeting a viscosity profile when formulating
- Additives for rheology control
- Fig. 1 : Definition of some key rheological parameters for a liquid under shear
- Fig. 2 : Types of rheology profile displayed by liquids
- Fig. 3 : Examples of shear rates for various processes used in the paint and coatings industry, and for some common methods of measuring viscosity
- Fig. 4 : Thickening mechanism for latex coatings with non-associative rheology modifiers
- Fig. 5 : Thickening mechanism for latex coatings with associative rheology modifiers |
| En ligne : |
https://drive.google.com/file/d/19pKoYryDqqsbD1TW2qiGqt1pea_QhzVx/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36457 |
in COATINGS TECH > Vol. 18, N° 10 (10/2021) . - p. 26-32
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Additives to control the rheology of paints and coatings in COATINGS TECH, Vol. 18, N° 10 (10/2021)
