Influence of ionic strength on the viscosities and water loss of bentonite suspensions containing polymers



Document title: Influence of ionic strength on the viscosities and water loss of bentonite suspensions containing polymers
Journal: Materials research
Database: PERIÓDICA
System number: 000312971
ISSN: 1516-1439
Authors: 1


Institutions: 1Universidade Federal de Campina Grande, Campina Grande, Paraiba. Brasil
Year:
Season: Ene-Mar
Volumen: 10
Number: 1
Pages: 53-56
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Experimental
English abstract A study was made of the influence of ionic strength (S) on the apparent (AV) and plastic (PV) viscosities and water loss (WL) of sodium bentonite suspension with polymers. Na-bentonite was dispersed in water (4.86% w/w) of different ionic strengths (S = 0.0, 0.015, 0.030 and 0.045 M) followed by the addition of polymer. Three polymer samples were studied, i.e., low viscosity carboxymethyl cellulose (CMC BV), polyanionic cellulose (PAC), and partially hydrolyzed polyacrylamide (HPAM). The results indicated that the presence of salts and increased salinity greatly influence the apparent and plastic viscosities and water loss of bentonite suspensions with polymer
Disciplines: Ingeniería,
Química,
Física y astronomía
Keyword: Ingeniería de materiales,
Química de polímeros,
Mecánica, elasticidad y reología,
Bentonita,
Fuerza iónica,
Propiedades fisicoquímicas
Keyword: Engineering,
Chemistry,
Physics and astronomy,
Materials engineering,
Polymer chemistry,
Mechanics, elasticity and rheology,
Bentonite,
Ionic strength,
Physicochemical properties
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