| Titre : |
Development of high throughput method for evaluating the effect of additives on foam stabilization in clear coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Jeff Anderson, Auteur ; Rebecca Ortiz, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 30-32 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Antimousse
Cisaillement (mécanique)
Surfactants
Vernis en phase aqueuse -- Additifs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
One of the more challenging aspects of formulating water-based coatings is in the selection of a foam control additive package and evaluating its effect on the ability of the formulation to resist and release entrained air. Current laboratory methods of analyzing defoaming efficency can be complicated, time consuming, and typically require significant volumes of materials for testing. The novel method presented here allows for small volume, high throughput analysis of the effect of foam control additives and other surfactants on the ability of a coating formulation to resist air entrainment. The method additionally allows for use of "shear rate" and "time of recovery" as process variables that can be used to simulate a diverse range of conditions that a coating may experience during the manufacturing or application process. Furthermore, the unique approach of using color as a comparative tool to evaluate the relative amount of air in the liquid coating formulations is shown to be an effective means of analysis. |
| Note de contenu : |
- BRIEF DESCRIPTION OF FOAM CONTROL ADDITIVES
- CONVENTIONAL HIGH SHEAR DEFOAMER EVALUATION METHOD
- LOW SHEAR METHODS
- EXPERIMENTAL DESIGN AND SAMPLE PREPARATION
- PROPOSED HTR WORKFLOW - PICA II
- IMAGE ANALYSIS
- RESULTS AND DISCUSSION : High throughput defoaming method : proof of concept - Measurement of liquid height as a proxy for density - Measurement of color to evaluate defoameer effectiveness - Reproducibility of the control |
| En ligne : |
https://drive.google.com/file/d/1Ux6QcwWejNHsirHgm0jATvGyE5qYTw6j/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17432 |
in COATINGS TECH > Vol. 10, N° 1 (01/2013) . - p. 30-32
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Development of high throughput method for evaluating the effect of additives on foam stabilization in clear coatings in COATINGS TECH, Vol. 10, N° 1 (01/2013)
