Electrokinetic behaviour and dispersion characteristics of ceramic powders with cationic and anionic polyelectrolytes

Autor:	Pradip, R S Premachandran, S. G. Malghan
Rok vydání:	1994
Předmět:	Materials science Chromatography Cationic polymerization Polyelectrolyte Electrokinetic phenomena Isoelectric point Chemical engineering Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Cubic zirconia Ceramic Absorption (chemistry) Dispersion (chemistry)
Zdroj:	Bulletin of Materials Science. 17:911-920
ISSN:	0973-7669 0250-4707
DOI:	10.1007/bf02757568
Popis:	Three different ceramic powders, viz. alumina, zirconia and silicon nitride were dispersed using two polyelectrolytes, one cationic (Betz 1190) and the other anionic (Darvan-C). All powders examined during the study could be well dispersed only under conditions of polymer dosage and pH such that the working pH is at least 2 pH units away from the pHIEP of the powder-dispersant combination. The shift in the isoelectric point (IEP) of the powders were determined through electro-acoustic measurements on 1% volume suspensions. Specific free energy of interaction were also computed using a model based on the electrical double layer theory of surfactant absorption.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::340ea848f6ceb8ef71c9c58cfc44b9ec https://doi.org/10.1007/bf02757568 Zobrazit plný text záznamu Full text from SpringerLink