Tuning of shear thickening behavior and elastic strength of polyvinylidene fluoride via doping of ZnO‐graphene

2021 ◽  
pp. 51260
Author(s):  
Mit Rita Goswami ◽  
Prayas Singh ◽  
Pankaj Chamoli ◽  
Sumit Bhardwaj ◽  
Kuldeep Kumar Raina ◽  
...  
Keyword(s):  
Polyvinylidene Fluoride ◽  
Shear Thickening ◽  
Thickening Behavior

scholarly journals Shear thickening behavior in dense repulsive and attractive suspensions of hard spheres

Soft Matter ◽  
2021 ◽  
Author(s):  
Vikram Rathee ◽  
Alessandro Monti ◽  
Marco Edoardo Rosti ◽  
Amy Q Shen
Keyword(s):  
Flow Curve ◽  
Hard Spheres ◽  
Shear Thickening ◽  
Colloidal Suspensions ◽  
Thickening Behavior ◽  
The Stability

Shear thickening in stable dense colloidal suspensions is a reversible phenomenon and no hysteresis is observed in the flow curve measurements. However, a reduction in the stability of colloids promotes...

scholarly journals Stability, rheological property and oil-displacement mechanism of a dispersed low-elastic microsphere system for enhanced oil recovery

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8118-8130 ◽  
Author(s):  
Hongbin Yang ◽  
Wanli Kang ◽  
Hairong Wu ◽  
Yang Yu ◽  
Zhou Zhu ◽  
...  
Keyword(s):  
Rheological Property ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Shear Thickening ◽  
Microstructure Change ◽  
Displacement Mechanism ◽  
Oil Displacement ◽  
Internal Forces ◽  
Thickening Behavior

The dispersed low-elastic microsphere system shows shear-thickening behavior because of the microstructure change and the interaction of internal forces.

scholarly journals The Effect of Rheology of Viscoelastic Polymer on Pressure Transient Response in Near-Wellbore Regions

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Jia Zhang ◽  
Shiqing Cheng ◽  
Jie Zhan ◽  
Qi Han
Keyword(s):  
Shear Thickening ◽  
Shear Thinning ◽  
Polymer Flooding ◽  
High Shear ◽  
Pressure Data ◽  
Transient Pressure ◽  
Pressure Derivative ◽  
Shear Rates ◽  
Viscoelastic Polymer ◽  
Thickening Behavior

Viscoelastic polymer solution shows shear thinning behavior at low shear rates and shear thickening behavior at high shear rates in reservoirs. However, models that ignored shear thickening behavior were commonly employed to interpret transient pressure data derived from tested wells in viscoelastic polymer flooding systems; although, viscoelastic polymer solutions show shear thickening behavior in the near-wellbore region due to high shear rate. To better characterize the oilfield with pressure transient analysis in viscoelastic polymer flooding systems, we developed a numerical model that takes into account both shear thinning behavior and shear thickening behavior. A finite volume method was employed to discretize partially differential flow equations in a hybrid grid system including PEBI mesh and Cartesian grid, and the Newton-Raphson method was used to solve the fully implicit nonlinear system. To illustrate the significance of our model, we compared our model with a model that ignores the shear thickening behavior by graphing their solutions on log-log plots. In the flow regime of near-wellbore damage, the pressure derivative computed by our model is distinctly larger than that computed by the model ignoring shear thickening behavior. Furthermore, the effect of shear thickening behavior on pressure derivative differs from that of near-wellbore damage. We then investigated the influence of shear thickening behavior on pressure derivative with different polymer injection rates, injection rates, and permeabilities. The results can provide a benchmark to better estimate near-wellbore damage in viscoelastic polymer flooding systems. Besides, we demonstrated the applicability and accuracy of our model by interpreting transient pressure data from a field case in an oilfield with viscoelastic polymer flooding treatments.

scholarly journals LAOS (Large Amplitude Oscillatory Shear) Analysis for Shear-Thickening Behavior of Concentrated Slurry

2020 ◽  
Vol 48 (5) ◽  
pp. 245-250
Author(s):  
Masahiko Ishii ◽  
Hiroshi Nakamura
Keyword(s):  
Large Amplitude ◽  
Shear Thickening ◽  
Oscillatory Shear ◽  
Large Amplitude Oscillatory Shear ◽  
Thickening Behavior

scholarly journals Observation of transition cascades in sheared liquid crystalline polymers

Soft Matter ◽  
2020 ◽  
Vol 16 (16) ◽  
pp. 3891-3901 ◽  
Author(s):  
Ryan J. Fox ◽  
M. Gregory Forest ◽  
Stephen J. Picken ◽  
Theo J. Dingemans
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Shear Thickening ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Crystalline Polymers ◽  
Nematic Director ◽  
Thickening Behavior

We observe anomalous shear thickening behavior of a lyotropic liquid crystalline polymer due to the dynamics of the nematic director.

Shear thickening behavior of a rheopectic micellar solution: salt effects

Langmuir ◽  
1994 ◽  
Vol 10 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Y. Hu ◽  
C. V. Rajaram ◽  
S. Q. Wang ◽  
A. M. Jamieson
Keyword(s):  
Micellar Solution ◽  
Shear Thickening ◽  
Salt Effects ◽  
Thickening Behavior

Effect of Surface Grafted Chains on Shear-Thickening Behavior of Nano SiO2-g-Polystyrene Microsphere Suspensions

2016 ◽  
Vol 16 (12) ◽  
pp. 12526-12533
Author(s):  
Yi Chen ◽  
Wenyong Liu ◽  
Guangsheng Zeng ◽  
Xianggang Li
Keyword(s):  
Shear Thickening ◽  
Polystyrene Microsphere ◽  
Nano Sio2 ◽  
Thickening Behavior ◽  
Effect Of Surface

Effects of particle softness on shear thickening of microgel suspensions

Soft Matter ◽  
2014 ◽  
Vol 10 (33) ◽  
pp. 6286-6293 ◽  
Author(s):  
Zhi Zhou ◽  
Javoris V. Hollingsworth ◽  
Song Hong ◽  
Guangmin Wei ◽  
Yu Shi ◽  
...  
Keyword(s):  
Shear Thickening ◽  
Microgel Particles ◽  
Thickening Behavior

A series of microgel particles composed of a polystyrene (PS) core and a thermo-sensitive poly(N-isopropylacrylamide) (PNIPAM) shell with different shell thicknesses were investigated to elucidate the effect of microgel softness on its shear thickening behavior.

Shear-thickening behavior of modified silica nanoparticles in polyethylene glycol

2012 ◽  
Vol 14 (3) ◽  
Author(s):  
Kejing Yu ◽  
Haijian Cao ◽  
Kun Qian ◽  
Xiaofei Sha ◽  
Yanping Chen
Keyword(s):  
Polyethylene Glycol ◽  
Silica Nanoparticles ◽  
Shear Thickening ◽  
Modified Silica ◽  
Thickening Behavior ◽  
Modified Silica Nanoparticles
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