Titre : |
Effect of turnover rate on the change of concentration of an unstable compound in a dip coating bath |
Type de document : |
texte imprimé |
Auteurs : |
Tatsuo Sato, Auteur |
Année de publication : |
2000 |
Article en page(s) : |
p. 81-83 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Dip-coating
|
Tags : |
Peinturage 'Au trempé' 'Composition chimique' Modification 'Composé instable' |
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
The effect of turnover rate on the change of concentration of unstable (degradable) compounds in a dip coating bath during a continuous coating process was theoretically calculated as a function of the degradation rate of the compound. It is assumed that the bath is replenished by the same coating material as that in the original bath to maintain the volume of the material in the bath constant. The results show that the fraction of the unstable compound in the bath at the end of the nth day is given by formula math where t is the number of days for one turnover and formula math where P is the fraction of the compound remaining undegraded in the bath per day. The equilibrium fraction of the compound after infinite coating days is given by formula math The concentration of the compound in the replenishing material (Cr) to maintain the original concentration in the bath (Co) constant is given by formula math. |
Note de contenu : |
- COMPUTATION : Change of the concentration of unstable compounds in a dip coating bath with time - Equilibrium concentration of the compound - Concentration of the compound - Concentration of the compound in replenishing coating material to maintain the concentration in the bath constant
- RESULTS AND DISCUSSION |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18023 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 906 (07/2000) . - p. 81-83