Homogeneous Shear, Wall Slip, and Shear Banding of Entangled Polymeric Liquids in Simple-Shear Rheometry: A Roadmap of Nonlinear Rheology

2011 ◽  
Vol 44 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Shi-Qing Wang ◽  
S. Ravindranath ◽  
P. E. Boukany
Keyword(s):  
Simple Shear ◽  
Shear Banding ◽  
Wall Slip ◽  
Shear Wall ◽  
Nonlinear Rheology ◽  
Polymeric Liquids ◽  
Homogeneous Shear

scholarly journals Shear banding in entangled polymers in the micron scale gap: a confocal-rheoscopic study

Soft Matter ◽  
2015 ◽  
Vol 11 (41) ◽  
pp. 8058-8068 ◽  
Author(s):  
Pouyan E. Boukany ◽  
Shi-Qing Wang ◽  
Sham Ravindranath ◽  
L. James Lee
Keyword(s):  
Shear Rate ◽  
Polymer Solutions ◽  
Shear Banding ◽  
Wall Slip ◽  
Entangled Polymers ◽  
Entangled Polymer ◽  
Rate Loss ◽  
Entangled Polymer Solutions

Recent shear experiments in well-entangled polymer solutions demonstrated that interfacial wall slip is the only source of shear rate loss and there is no evidence of shear banding in the micron scale gap.

Observations of Wall Slip and Shear Banding in an Entangled DNA Solution

2008 ◽  
Vol 41 (7) ◽  
pp. 2644-2650 ◽  
Author(s):  
Pouyan E. Boukany ◽  
Y. Thomas Hu ◽  
Shi-Qing Wang
Keyword(s):  
Shear Banding ◽  
Wall Slip

scholarly journals Wall slip, shear banding, and instability in the flow of a triblock copolymer micellar solution

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
Sébastien Manneville ◽  
Annie Colin ◽  
Gilles Waton ◽  
François Schosseler
Keyword(s):  
Micellar Solution ◽  
Triblock Copolymer ◽  
Shear Banding ◽  
Wall Slip

A Double-Tilt Small Angle Neutron Scattering Experiment on Deformed Poly Mer Systems

1986 ◽  
Vol 79 ◽  
Author(s):  
R. F. Saraf ◽  
J. M. Lefebvre ◽  
R. S. Porter ◽  
G. D. Wignall
Keyword(s):  
Solid State ◽  
Simple Shear ◽  
Small Angle Neutron Scattering ◽  
Shear Banding ◽  
Direct Estimate ◽  
Direct Verification ◽  
Biaxial Deformation ◽  
Scattering Experiment ◽  
Neutron Scattering Experiment ◽  
Molecular Deformation

AbstractA double rotation goniometer has been mounted in the neutron beam in order to characterize the molecular deformation in polymers subjected to various strain conditions.The results provide a direct verification of the fiber symmetry in solid state coextruded polymethylmethacrylate (PMMA) and polypropylene (PP) homopolymers.In the case of the shear banding phenomenon, we have been able to test the validity of the simple shear assumption: it also provides a direct estimate of the finite shear strain involved in the process. As a last illustration ofthe method, we also consider the biaxial deformation of PP and PMMA squeezed under various temperature and strain-rate conditions.

Effects of chain length and polydispersity on shear banding in simple shear flow of polymeric melts

Soft Matter ◽  
2020 ◽  
Vol 16 (28) ◽  
pp. 6468-6483 ◽  
Author(s):  
Mahdi Boudaghi-Khajehnobar ◽  
Brian J. Edwards ◽  
Bamin Khomami
Keyword(s):  
Steady State ◽  
Shear Rate ◽  
Shear Flow ◽  
Chain Length ◽  
Simple Shear ◽  
Polymer Melts ◽  
Shear Banding ◽  
Simple Shear Flow ◽  
Polydisperse Polymer ◽  
Transient And Steady State

Transient and steady-state shear banding are demonstrated for polydisperse polymer melts as functions of applied shear rate.

Sign in / Sign up

Export Citation Format

Share Document