The influence of cationic surfactants on rheological properties of bentonite-water systems

被引：35

作者：

Alemdar, A ^{[1
]}

Atici, O ^{[1
]}

Güngör, N ^{[1
]}

机构：

[1] Istanbul Tech Univ, Fac Sci & Letters, TR-80626 Istanbul, Turkey

来源：

MATERIALS LETTERS | 2000年 / 43卷 / 1-2期

关键词：

cationic surfactants; bentonite-water system; cetyltrimethylammonium bromide (CTAB); distearlydimethylammonium chloride (DDAC);

D O I：

10.1016/S0167-577X(99)00230-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of surfactants on the flow behaviour of bentonite-water systems (2% w/w) was studied for two cationic surfactants, cetyltrimethylammonium bromide (CTAB) and distearlydimethylammonium chloride (DDAC), in the range of 10(-5)-10(-2) mol/l. These surfactants were added to Ca- and Na-bentonite-water systems in seven different concentrations and the observed result was the different effects on the viscosity, which is related to the interactions between particles and surfactant, particles and particles, and particles and water molecules. The adsorption of cationic surfactant on a charged surface leads to significant modification of the charge distribution in the electrical double layer, and, thus, in the interaction of particles with each other. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：57 / 61

页数：5

共 24 条

[1]

[Anonymous], 1977, CLAY COLLOID CHEM

[2]

Aveyard R., 1973, INTRO PRINCIPLES SUR

[3]

AVEYARD R, 1984, SURFACTANTS

[4] RHEOLOGICAL PROPERTIES OF SODIUM MONTMORILLONITE DISPERSIONS. [J].

Brandenburg, U. ;

Lagaly, G. .

Applied Clay Science, 1988, 3 (03) :263-279

[5]

ECE I, 1998, IN PRESS INCLUSION P

[6]

GUNGOR N, 1994, REV ROUM CHIM, V39, P177

[7]

Gungor N, 1997, J SCI IND RES INDIA, V56, P483

[8] Difference in the influence of Na and Ca ions on the zeta potentials of Anatolian bentonitic clays [J].

Gungor, N ;

Dilmac, S .

JOURNAL OF INCLUSION PHENOMENA AND MOLECULAR RECOGNITION IN CHEMISTRY, 1996, 26 (1-3) :93-101

[9]

GUNGOR N, 1997, INT CERAM REV, V46, P22

[10]

GUNGOR N, 1995, POWDER HANDLING PROC, V7, P317

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