[article]
| Titre : |
Implication of coalescing agents and associative thickeners on rheology of water borne coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Ritesh A. Bhavsar, Auteur ; Vaibhav J. Dave, Auteur ; Randhirsinh Parmar, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 49-54 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Coalescence (Sciences physiques)
Epaississants
Latex
Polyacryliques
Polymères en émulsion
Revêtements en phase aqueuse:Peinture en phase aqueuse
Rhéologie
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Screening specific concentration of ingredients is a difficult job while formulating a latex paint. It is the composition of binder and various ingredients such as pigments, coalescing agents, thickeners, surfactants, wetting agents, etc. The properties of paint are highly dependent upon the property of binder and its interactions with other ingredients. Rheology is one of the important property for paint, responsible for its performance during manufacture, storage and applications. In this study we discuss the theological interactions of acrylic emulsion (AE) with coalescing agents and associative thickeners to screen these ingredients for the paint formulation. Two hydrophobic coalescing agents and three types of HEUR (hydrophobically modified ethoxylated urethane thickener) and HASE (hydrophobically modified alkali swellahle emulsion thickeners) classified as high, mid and low shear thickener with different concentration are used in this study. Flow curve, 31TT (Three Interval Thixotropy Test), Oscillatory amplitude sweep test (AS) are carried out to study the influence of these ingredients on rheology. She viscosity increases as the concentration of coalescing agent and associative thickener increases. The mechanism of interaction and efficiency of ingredients with acrylic emulsion is discussed. |
| Note de contenu : |
- EXPERIMENTAL : Materials and methods - Rheological measurements
- RESULTS AND DISCUSSION : Effect of coalescing agent - Interactions of associative thickener with acrylic emulsion |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15650 |
in PAINTINDIA > Vol. LXII, N° 6 (06/2012) . - p. 49-54
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Implication of coalescing agents and associative thickeners on rheology of water borne coatings in PAINTINDIA, Vol. LXII, N° 6 (06/2012)
