| Titre : |
Additives -Thickeners and associative thickeners |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Veeramani, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 108-112 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Argile
CelluloseLa 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
hydroxyéthylcellulose
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
|
| Index. décimale : |
667.6 Peintures |
| Résumé : |
Let's now go to the next additive called Thickeners. This is also an important additive which plays a vital role in bringing a uniform consistency of Water based Paints. Thickeners have mainly two functions, they increase the viscosity thereby, reducing the Pigment mobility to prevent settling and they change the flow and levelling characteristics. The most commonly used thickeners are derivatives of Carboxy Methyl Cellulose and Hydroxy Methyl Cellulose. However they suffer from certain disadvantages viz: poor flow and levelling, sensitive towards enzyme degradation. Thickening agents at moderate shear increase the viscosity and increase the coatings resistance to flow du ring stirring, mixing and pouring. Rheology modifiers are necessary additives to prevent sagging and spatter during application. They also help to retain supply viscosity, provide anti-sag control, water retention/open time, spatter and scrub resistance. |
| Note de contenu : |
- Structure of hydroxy ethyl cellulose (HEC)
- Organo clay thickeners
- Formulating of water based paints with cellulosic thickeners
- Formulating paint with associative thickeners
- Alkali swellable associative thickeners |
| En ligne : |
https://drive.google.com/file/d/1ww1Fe5AOwkgsI03XuoHAbhAZg56JE3c6/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24478 |
in PAINTINDIA > Vol. LXV, N° 7 (07/2015) . - p. 108-112
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Additives -Thickeners and associative thickeners in PAINTINDIA, Vol. LXV, N° 7 (07/2015)
