[article]
| Titre : |
Defoaming technology |
| Type de document : |
texte imprimé |
| Auteurs : |
Manoj Sathyan, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 113-122 |
| Langues : |
Anglais (eng) |
| Catégories : |
Antimousse
Mousse (chimie)
Mousses (matériaux)
|
| Index. décimale : |
541.34 Solutions |
| Résumé : |
It is difficult to go through a whole day without coming in contact with foaming materials. The soap and tooth paste that we use in the morning and before going to bed, the polyurethane foam seat cushion of the sofa or car seat, or the foamed polystyrene take away boxes that fill our food in the restaurants.
In the above cases, foams are desired to achieve the finishing or result that we need. However for paint manufacturers applicators, in order to ensure a smooth and even final paint film, foam will be one of the main tasks to overcome especially for those paints that are applied by brush and roller.
Thus additives like defoamers are needed to prevent the formation of bubbles when liquid paints are subjected to external mechanical disturbance during application and production.
Foam : In general terms, foam can be defined as dispersing of gas (normally air) in liquid. It can be generated during production of a coating like in grinding phase, mixing and filling or during application. It also can be produced when liquid paint is wetted on porous surface like wood substrate. As a paint formulator, foams that are generated during application and porous surface wetting process are the problem that he or she wanted to solve. |
| Note de contenu : |
DESTABILIZE FOAM FACTOR : Gravity force / FOAM STABILIZING FACTORS : Marangoni effect - Static effect / CRITERIAS TO BE A DEFOAMER / COMPROMISE IN USING DEFOAMERS / DEFOAMER TESTING METHOD : a) for normal solvent based system - b) for water based emulsion paint system. |
| En ligne : |
https://drive.google.com/file/d/1QmR4ubfarSKA6NmGT55g1Rl9w2Saleet/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8999 |
in PAINTINDIA > Vol. LVIII, N° 3 (03/2008) . - p. 113-122
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Defoaming technology in PAINTINDIA, Vol. LVIII, N° 3 (03/2008)
