Effect of cationic surfactant adsorption on the rheological and surface properties of bentonite dispersions

Ebru Günister; Sevim Işçi; Nevin Öztekin; F. Bedia Erim; Ö Işik Ece; Nurfer Güngör

doi:10.1016/j.jcis.2006.07.021

Effect of cationic surfactant adsorption on the rheological and surface properties of bentonite dispersions

Ebru Günister, Sevim Işçi, Nevin Öztekin, F. Bedia Erim^*, Ö Işik Ece, Nurfer Güngör

^*Corresponding author for this work

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

In this study, the adsorption, bridging, and intercalation effects of a cationic surfactant, benzyldimethyltetradecyl ammonium chloride (BDTDACl), on bentonite clay suspensions was investigated. The adsorption, rheological behaviors, and colloidal properties of the clay dispersions were determined as a function surfactant concentration. Adsorption isotherms were obtained using the batch-equilibrium technique. The rheological behavior of the clay suspensions was obtained by shear stress-shear rate measurements within 0-350 s^-1 shear rates. The structure of the composite particles was analyzed by using X-ray diffraction analysis and it was found that the expansions of basal d-spacings are less than 16.80 Å, suggesting a monolayer structure.

Original language	English
Pages (from-to)	137-141
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	303
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2006.07.021
Publication status	Published - 1 Nov 2006

Funding

This research project is supported by Istanbul Technical University Research Fund (project no: 30451).

Funders	Funder number
Istanbul Technical University Research Fund	30451

Keywords

Adsorption
Bentonite
Cationic surfactant
Rheology
Zeta potential

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10.1016/j.jcis.2006.07.021

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title = "Effect of cationic surfactant adsorption on the rheological and surface properties of bentonite dispersions",

abstract = "In this study, the adsorption, bridging, and intercalation effects of a cationic surfactant, benzyldimethyltetradecyl ammonium chloride (BDTDACl), on bentonite clay suspensions was investigated. The adsorption, rheological behaviors, and colloidal properties of the clay dispersions were determined as a function surfactant concentration. Adsorption isotherms were obtained using the batch-equilibrium technique. The rheological behavior of the clay suspensions was obtained by shear stress-shear rate measurements within 0-350 s-1 shear rates. The structure of the composite particles was analyzed by using X-ray diffraction analysis and it was found that the expansions of basal d-spacings are less than 16.80 {\AA}, suggesting a monolayer structure.",

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T1 - Effect of cationic surfactant adsorption on the rheological and surface properties of bentonite dispersions

AU - Günister, Ebru

AU - Işçi, Sevim

AU - Öztekin, Nevin

AU - Erim, F. Bedia

AU - Ece, Ö Işik

AU - Güngör, Nurfer

PY - 2006/11/1

Y1 - 2006/11/1

N2 - In this study, the adsorption, bridging, and intercalation effects of a cationic surfactant, benzyldimethyltetradecyl ammonium chloride (BDTDACl), on bentonite clay suspensions was investigated. The adsorption, rheological behaviors, and colloidal properties of the clay dispersions were determined as a function surfactant concentration. Adsorption isotherms were obtained using the batch-equilibrium technique. The rheological behavior of the clay suspensions was obtained by shear stress-shear rate measurements within 0-350 s-1 shear rates. The structure of the composite particles was analyzed by using X-ray diffraction analysis and it was found that the expansions of basal d-spacings are less than 16.80 Å, suggesting a monolayer structure.

AB - In this study, the adsorption, bridging, and intercalation effects of a cationic surfactant, benzyldimethyltetradecyl ammonium chloride (BDTDACl), on bentonite clay suspensions was investigated. The adsorption, rheological behaviors, and colloidal properties of the clay dispersions were determined as a function surfactant concentration. Adsorption isotherms were obtained using the batch-equilibrium technique. The rheological behavior of the clay suspensions was obtained by shear stress-shear rate measurements within 0-350 s-1 shear rates. The structure of the composite particles was analyzed by using X-ray diffraction analysis and it was found that the expansions of basal d-spacings are less than 16.80 Å, suggesting a monolayer structure.

KW - Adsorption

KW - Bentonite

KW - Cationic surfactant

KW - Rheology

KW - Zeta potential

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EP - 141

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 1

ER -

Effect of cationic surfactant adsorption on the rheological and surface properties of bentonite dispersions

Abstract

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