Effect of turnover rate on the change of concentration of an unstable compound in a dip coating bath / Tatsuo Sato in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 906 (07/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 906 (07/2000) . - p. 81-83 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 [article]

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Rheology of suspensions / Tatsuo Sato in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 847 (08/1995)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 67, N° 847 (08/1995) . - p. 69-79 Titre : Rheology of suspensions Type de document : texte imprimé Auteurs : Tatsuo Sato, Auteur Année de publication : 1995 Article en page(s) : p. 69-79 Note générale : bibliogr. Langues : Américain (ame) Catégories : Dispersions et suspensions Rhéologie Index. décimale : 667.9 Revêtements et enduits Résumé : The rheology of suspensions is an important subject for scientists in a wide range of industries, such as paint, ink, cement, cosmetics, foods, and agricultural products. A knowledge of suspension rheology is essential for industrial chemists to develop new suspension products. Rheology allows us to study microscopic structures of colloidal systems by measuring the macroscopic flow behavior of the system under the shear stress. The author recently studied the physical properties (dispersion stability, rheological properties) of aqueous and nonaqueous (methanol) titanium dioxide suspensions. The basics of suspension rheology are reviewed previously in this journal. A number of publications on the correlation of rheological properties with application behavior of coatings materials are available. Note de contenu : - WHAT IS RHEOLOGY ? - DILUTE SUSPENSIONS - CONCENTRATED SUSPENSIONS : Shear thinning and thixotropy - Shear thickening and reopexy - Yield value - Viscoelasticity - EFFECT OF SURFACTANTS AND POLYMERS ON RHEOLOGICAL PROPERTIES : Effect of a nonionic polymer - Effect of a cationic surfactant Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18551 [article]

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Stabilization of colloidal dispersions by polymer adsorption / Tatsuo Sato / New York [United States] : Marcel Dekker, Inc. (1980)

Titre : Stabilization of colloidal dispersions by polymer adsorption Type de document : texte imprimé Auteurs : Tatsuo Sato, Auteur ; Richard Ruch, Auteur Editeur : New York [United States] : Marcel Dekker, Inc. Année de publication : 1980 Collection : Surfactant science series num. 9 Importance : V-155 p. Présentation : ill. Format : 24 cm ISBN/ISSN/EAN : 0-8247-6970-8 Note générale : Index - Bibliogr. Langues : Américain (ame) Langues originales : Américain (ame) Catégories : Adsorption Colloides Dispersions et suspensions Floculation Polymères Polymérisation Solutions de polymère Stabilisants (chimie) Index. décimale : 541.34 Solutions Résumé : 1. ADSORPTION OF POLYMERS FROM SOLUTION : Determination of the amount adsorption - Rate of adsorption - Variables affecting adsorption - Thickness of adsorbed layer - Adsorption isotherms / 2. CLASSICAL STABILIZATION : The dispersed phase - DLVO Theory - Electrical repulsive energy - Attractive energy - Effect of adsorbed layers on stability / 3. STERIC STABILIZATION : Entropic effects - Osmotics effects - Volume restriction and free energy of mixing repulsion - Enthalpic repulsioon - Elastic repulsion - Experimental studies on steric stabilization / 4. FLOCCULATION : Basic flocculation mechanisms - The role of an electrolyte - Other flocculation mechanisms. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=970

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