| Titre : |
Mechanism of defoamers in aqueous systems |
| Type de document : |
texte imprimé |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 452-453 |
| Langues : |
Anglais (eng) |
| Catégories : |
Antimousse
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Excessive foam formation is one of the problems that one can face during the formulation of waterborne paint systems. Foam formation should be avoided by all means possible. During the production and filling stages, foam leads to inefficiency, overflow in tanks, instability and other problems. Foam formation during paint application can lead to properties like crater forming, loss of opacity and protection.
In order to fight foam formation, defoamers or anti-foaming agents are used. Almost every waterborne paint system will contain an anti-foaming, agent typically in the 0.0-0.5 % concentration range by weight, but the selection of an appropriate anti-foaming agent is a challenge. The efficiency of anti-foaming agents depends on the specific paint system and the process utilised. |
| Note de contenu : |
- Defoaming
- Mechanism of defoaming : One or more hydrophobic components - Mineral oil - Surface active dispersing agents/emulsifiers
- Potential side effects
- Printiples of selection
- DAPRO defoamers |
| En ligne : |
https://drive.google.com/file/d/1TlBNdA0oEO65d6-85fHv3pxPsX1PDYwR/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38676 |
in SURFACE COATINGS INTERNATIONAL > Vol. 105.6 (11-12/2022) . - p. 452-453
Aller sur edunet
Accueil
Mechanism of defoamers in aqueous systems in SURFACE COATINGS INTERNATIONAL, Vol. 105.6 (11-12/2022)
