A SMALL-ANGLE NEUTRON-SCATTERING STUDY OF A CLAY SUSPENSION UNDER SHEAR

被引:17
作者
HANLEY, HJM [1 ]
STRATY, GC [1 ]
TSVETKOV, F [1 ]
机构
[1] WEIZMANN INST SCI,DEPT ORGAN CHEM,IL-36700 REHOVOT,ISRAEL
关键词
D O I
10.1021/la00021a074
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The most useful expression for the orientational probability of cylinders in a suspension subjected to a shear field1 is that of Hayter and Penfold,2 reported in 1984. Here an alternative equation is proposed to account for the shear induced orientation of disks. Our equation is then used to interpret SANS (small angle neutron scattering) intensity data from dilute aqueous suspensions of Na-montmorillonite. Parenthetically we note that SANS studies on dilute clay suspensions in equilibrium are well-known3–5 but that investigations of clay suspensions under shear are not in the literature.6. © 1994, American Chemical Society. All rights reserved.
引用
收藏
页码:3362 / 3364
页数:3
相关论文
共 16 条
[1]  
ALEXANDER AE, 1949, COLLOIDAL SCI, pCH14
[2]  
BONGIOVANNI R, 1991, PROG COLL POL SCI S, V84, P299
[3]  
Brenner H., 1974, International Journal of Multiphase Flow, V1, P195, DOI 10.1016/0301-9322(74)90018-4
[4]   SMALL-ANGLE NEUTRON-SCATTERING FROM DILUTE AQUEOUS DISPERSIONS OF CLAY [J].
CEBULA, DJ ;
THOMAS, RK ;
WHITE, JW .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1980, 76 :314-321
[5]  
Guinier G., 1955, SMALL ANGLE SCATTERI
[6]   USE OF VISCOUS SHEAR ALIGNMENT TO STUDY ANISOTROPIC MICELLAR STRUCTURE BY SMALL-ANGLE NEUTRON-SCATTERING [J].
HAYTER, JB ;
PENFOLD, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (20) :4589-4593
[7]   DIFFUSE SMALL-ANGLE SCATTERING OF X-RAYS IN COLLOID SYSTEMS [J].
KRATKY, O ;
POROD, G .
JOURNAL OF COLLOID SCIENCE, 1949, 4 (01) :35-70
[8]   EFFECT OF WEAK BROWNIAN ROTATIONS ON PARTICLES IN SHEAR FLOW [J].
LEAL, LG ;
HINCH, EJ .
JOURNAL OF FLUID MECHANICS, 1971, 46 (APR27) :685-&
[9]  
OTTEWILLRH, 1992, COMMUNICATION
[10]   SWELLING AND DISPERSION OF SMECTITE CLAY COLLOIDS - DETERMINATION OF STRUCTURE BY NEUTRON-DIFFRACTION AND SMALL-ANGLE NEUTRON-SCATTERING [J].
RAMSAY, JDF ;
SWANTON, SW ;
BUNCE, J .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (23) :3919-3926