Shear thickening in polymer stabilized colloidal dispersions

2005 ◽  
Vol 49 (6) ◽  
pp. 1347-1360 ◽  
Author(s):  
Lakshmi-Narasimhan Krishnamurthy ◽  
Norman J. Wagner ◽  
Jan Mewis
Surfactants ◽  
2019 ◽  
pp. 400-424
Author(s):  
Bob Aveyard

Lyophobic colloidal dispersions, aggregated surfactant systems, and polymer solutions, as well as foams and emulsions, can all be deformed by weak external forces; rheology is the study of deformation and flow of materials. Various rheological quantities arising from the response of a material to shear are defined. For liquids the stress, τ‎, applied is related to the rate of deformation, that is, the shear strain rate, γ̇. For Newtonian fluids τ‎ and γ̇ are linearly related and τ‎ / γ̇ is the viscosity, η‎. Other nonlinear relationships correspond to shear thinning and shear thickening fluids and to plastic behaviour in which there is a yield stress. Viscoelastic systems exhibit both viscous and elastic properties; such behaviour is often treated using the simple Maxwell model. Some illustrative experimentally observed rheological behaviour is presented.


2009 ◽  
Vol 287 (12) ◽  
pp. 1481-1485 ◽  
Author(s):  
Joachim Kaldasch ◽  
Bernhard Senge

Physics Today ◽  
2009 ◽  
Vol 62 (10) ◽  
pp. 27-32 ◽  
Author(s):  
Norman J. Wagner ◽  
John F. Brady

1996 ◽  
Vol 40 (5) ◽  
pp. 899-916 ◽  
Author(s):  
Jonathan Bender ◽  
Norman J. Wagner

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