Effects of polyethyleneimine adsorption on rheology of bentonite suspensions

The influence of the cationic polymer, polyethyleneimine polymer (PEI) on the flow behaviour of bentonite suspensions (2%, w/w), was studied. XRD, zeta potential and adsorption studies were done together with rheological measurements. The addition of PEI at concentration ranges of 10-5-4.5 g/l and t...

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Bibliographic Details
Published in:Bulletin of materials science 2005-06, Vol.28 (3), p.287-291
Main Authors: Alemdar, A., Öztekin, N., Erim, F. B., Ece, Ö. I., Güngör, N.
Format: Article
Language:English
Subjects:
Adsorption
Bentonite
Cationic
Cationic polymerization
Food science
Polyetherimides
Polyethyleneimine
Polymers
Rheological properties
Rheology
Stability
Zeta potential
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Summary:The influence of the cationic polymer, polyethyleneimine polymer (PEI) on the flow behaviour of bentonite suspensions (2%, w/w), was studied. XRD, zeta potential and adsorption studies were done together with rheological measurements. The addition of PEI at concentration ranges of 10-5-4.5 g/l and their rheological properties and stability of bentonite suspensions were studied. The adsorption rates for the bentonite suspensions are very fast. The XRD results showed that the PEG molecules did not intercalate into the layers of the clay.
ISSN:0250-4707
0973-7669
DOI:10.1007/BF02711262