Rheo-SAXS investigation of organoclay water in oil emulsions

被引：18

作者：

Akkal, R. ^{[1
]}

Cohaut, N. ^{[2
]}

Khodja, M. ^{[3
]}

Ahmed-Zaid, T. ^{[1
]}

Bergaya, F. ^{[2
]}

机构：

[1] Ecole Natl Super Polytech EL Harrach, Algiers, Algeria

[2] Univ Orleans, CNRS, Ctr Rech Mat Divisee, F-45071 Orleans, France

[3] Inst Algerien Petr, SONATRACH, Boumerdes 35000, Algeria

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2013年 / 436卷

关键词：

Montmorillonite; Organoclay; Inverse emulsion; Dispersion; Viscosity; Rheo-SAXS; X-RAY-SCATTERING; ANGLE NEUTRON-SCATTERING; DISPERSIONS; SUSPENSION; CRYSTAL;

D O I：

10.1016/j.colsurfa.2013.07.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Organoclay (OC) loaded macroemulsions are systems used worldwide as drilling-fluid in oil extraction. SAXS and viscosity measurements (Rheo-SAXS) are simultaneously performed on OC loaded water in dodecane emulsions (W/D = 10/90), at different shear rates in the range 0.1-1000 s(-1). The role of three OC (VG69, Bentone and Geltone) was investigated at different concentrations (<3.5%, m/m). The stabilization of W/D emulsions implies co-addition of OC> 2% (m/m) and surfactants. These emulsions exhibit a shear thinning behavior with a yield stress. The dispersion state of the clay mineral particles inferred, with a fit of SAXS profiles using a scattering model of stacking of N core-layer platelets. The structure of clay mineral particles is unchanged under flow and clay mineral particles are isotropically dispersed under a shear rate <1000 s(-1). Bentone with the best ability to swell in dodecane, has the large impact on viscosity. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：751 / 762

页数：12

共 21 条

[1] RHEOLOGY OF EMULSIONS - A REVIEW [J].

BARNES, HA .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1994, 91 :89-95

[2]

Bergaya F., 2013, HDB CLAY SCI A, V5, P1

[3] Orientational Order of Colloidal Disk-Shaped Particles under Shear-Flow Conditions: a Rheological-Small-Angle X-ray Scattering Study [J].

Bihannic, Isabelle ;

Baravian, Christophe ;

Duval, Jerome F. L. ;

Paineau, Erwan ;

Meneau, Florian ;

Levitz, Pierre ;

de Silva, Johann Patrick ;

Davidson, Patrick ;

Michot, Laurent J. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2010, 114 (49) :16347-16355

[4]

Cohaut N., 2013, HDB CLAY SCI B, V5, P177

[5] RheoSAXS studies of anisotropic complex fluids under shear [J].

de Silva, J. P. ;

Petermann, D. ;

Kasmi, B. ;

Imperor-Clerc, M. ;

Davidson, P. ;

Pansu, B. ;

Meneau, F. ;

Perez, J. ;

Paineau, E. ;

Bihannic, I. ;

Michot, L. J. ;

Baravian, C. .

XIV INTERNATIONAL CONFERENCE ON SMALL-ANGLE SCATTERING (SAS09), 2010, 247

[6] Rheology of emulsions [J].

Derkach, Svetlana R. .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2009, 151 (1-2) :1-23

[7] A small-angle neutron scattering study of a commercial organoclay dispersion [J].

Hanley, HJM ;

Muzny, CD ;

Ho, DL ;

Glinka, CJ .

LANGMUIR, 2003, 19 (14) :5575-5580

[8] A SANS study of organoclay dispersions [J].

Hanley, HJM ;

Muzny, CD ;

Ho, DL ;

Glinka, CJ ;

Manias, E .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2001, 22 (05) :1435-1448

[9] Surfactant adsorption on a clay mineral: Application of radiation scattering [J].

Hanley, HJM ;

Muzny, CD ;

Butler, BD .

LANGMUIR, 1997, 13 (20) :5276-5282

[10] Rheology of organoclay suspension [J].

Hato, Mpitloane Joseph ;

Zhang, Ke ;

Ray, Suprakas Sinha ;

Choi, Hyoung Jin .

COLLOID AND POLYMER SCIENCE, 2011, 289 (10) :1119-1125

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