| Titre : |
Innovative, gemini-type molecular defoamer technology for improved coating aesthetics |
| Type de document : |
texte imprimé |
| Auteurs : |
Ernie C. Galgoci, Auteur ; Steven Y. Chan, Auteur ; Khalil Yacoub, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 77-85 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Tags : |
Agent surface gemini Etude expérimentale Relation formulation propriété Démoussage Evaluation performance Diol Composé acétylénique non ionique Antimoussant Additif Peinture eau Matériau revêtement |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The use of conventional surfactants and defoamers in waterbome coatings can often create an undesirable cycle, whereby each imparts a negative effect that requires the other to solve. Molecular defoamers represent a novelclass of defoamers that break foam on a molecular level, which is unlike conventional defoamers that utilize macroscopic physical incompatibility within a coating formulation. This is accomplished by the ability of the molecular defoamer to adsorb at the air-water interface of a foam bubble and, thereby, displace some of the surfactants that stabilize the foam. Based on a fundamental understanding of the effects of basic adsorption parameters, innovative nonsilicone molecular defoamers were developed that provide long-term foam control, effectively reduce both surface tension and foam in a variety of emulsion polymers, and decrease significantly the level of defects in waterbome coating applications. A synergistic performance benefit was obtained when these molecular defoamers were used in combination in an acrylic, industrial maintenance formulation. |
| DOI : |
10.1007/s11998-006-0008-3 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-006-0008-3.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3723 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 3, N° 1 (01/2006) . - p. 77-85
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Innovative, gemini-type molecular defoamer technology for improved coating aesthetics in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 1 (01/2006)
