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New insights on carbon black suspension rheology—Anisotropic thixotropy and antithixotropy

Journal Article · · Journal of Rheology
DOI:https://doi.org/10.1122/8.0000455· OSTI ID:1882746

We report a detailed experimental study of peculiar thixotropic dynamics of carbon black (CB, Vulcan XC-72) suspensions in mineral oil, specifically the observation of sequential stress increase then decrease at a fixed shear rate in a step-down test. We verify that such dynamics, though peculiar, come from a true material response rather than experimental artifacts. We also reveal how this long-time stress decay is associated with antithixotropic structural change rather than viscoelastic stress relaxation by using orthogonal superposition (OSP) rheometry to probe viscoelastic moduli during the step-down tests. The orthogonal storage and loss moduli are present, showing this two-timescale recovery then decay response, which demonstrates that this response is antithixotropic, and it involves shear-induced structuring. We further show a mechanical anisotropy in the CB suspension under shear using OSP. Based on the rheological results, a microstructural schematic is proposed, considering qualitatively thixotropic structure build-up, antithixotropic densification, and anisotropic structure evolution. Our observation for these CB suspensions is outside the standard paradigm of thixotropic structure-parameter models, and the elastic response provides us with new insight into the transient dynamics of CB suspensions.

Sponsoring Organization:
USDOE
OSTI ID:
1882746
Alternate ID(s):
OSTI ID: 1982941
Journal Information:
Journal of Rheology, Journal Name: Journal of Rheology Journal Issue: 5 Vol. 66; ISSN 0148-6055
Publisher:
Society of RheologyCopyright Statement
Country of Publication:
United States
Language:
English

References (82)

Semi-Solid Lithium Rechargeable Flow Battery journal May 2011
Biphasic Electrode Suspensions for Li-Ion Semi-solid Flow Cells with High Energy Density, Fast Charge Transport, and Low-Dissipation Flow journal June 2015
Influence of the Carbon Black Dispersing Process on the Microstructure and Performance of Li‐Ion Battery Cathodes journal June 2019
Experimental Challenges of Shear Rheology: How to Avoid Bad Data book October 2014
Time-resolved rheometry journal January 1994
Flow-induced structure in a system of nuclear waste simulant slurries journal July 1996
Rheological behaviour of pigment dispersions as related to roller passage journal October 1969
A model system for thixotropy studies journal July 2005
High shear rate viscometry journal April 2008
New insights on fumed colloidal rheology—shear thickening and vorticity-aligned structures in flocculating dispersions journal December 2008
Determining the true slip of a yield stress material with a sliding plate rheometer journal August 2012
Superposition rheometry of a wormlike micellar fluid journal June 2013
Mapping thixo-elasto-visco-plastic behavior journal March 2017
Thixotropy—a review journal May 1997
Orthogonal versus parallel superposition measurements journal November 1998
Kinetics of clustering of carbon black suspensions by light scattering techniques journal September 1999
Flowing suspensions of carbon black with high electronic conductivity for flow applications: Comparison between carbons black and exhibition of specific aggregation of carbon particles journal August 2017
Thixotropy journal March 2009
Stress jumps on weakly flocculated dispersions: Steady state and transient results journal July 2005
A structural kinetics model for thixotropy journal November 2006
Signatures of Overaging in an Aqueous Dispersion of Carbopol journal November 2020
Mechanical History Dependence in Carbon Black Suspensions for Flow Batteries: A Rheo-Impedance Study journal February 2017
Clustering and Percolation in Suspensions of Carbon Black journal August 2017
Rheological Investigation on the Microstructure of Fuel Cell Catalyst Inks journal December 2018
Shear-Induced Microstructural Evolution of a Thermoreversible Colloidal Gel journal May 2001
Flow-Induced Anisotropy and Reversible Aggregation in Two-Dimensional Suspensions journal September 2003
Numerical and Experimental Study of Suspensions Containing Carbon Blacks Used as Conductive Additives in Composite Electrodes for Lithium Batteries journal March 2014
Determining Relaxation Modes in Flowing Associative Polymers Using Superposition Flows journal January 2001
Stoichiometry effects on rheology of model polyurethanes at the gel point journal February 1988
Polysulfide Flow Batteries Enabled by Percolating Nanoscale Conductor Networks journal March 2014
Jamming phase diagram for attractive particles journal June 2001
Understanding rheological hysteresis in soft glassy materials journal January 2017
Design of yield-stress fluids: a rheology-to-structure inverse problem journal January 2017
Orthogonal superposition rheometry of colloidal gels: time-shear rate superposition journal January 2018
Percolation behaviors of model carbon black pastes journal January 2018
Mechanical spectroscopy of colloidal dispersions journal January 1978
Highly anisotropic vorticity aligned structures in a shear thickening attractive colloidal system journal January 2008
Shear-induced structuration of confined carbon black gels: steady-state features of vorticity-aligned flocs journal January 2011
Yielding dynamics of a Herschel–Bulkley fluid: a critical-like fluidization behaviour journal January 2012
Non-aqueous carbon black suspensions for lithium-based redox flow batteries: rheology and simultaneous rheo-electrical behavior journal January 2013
Rheopexy and tunable yield stress of carbon black suspensions journal January 2013
Timescales in creep and yielding of attractive gels journal January 2014
Startup steady shear flow from the Oldroyd 8-constant framework journal June 2019
Tunable shear thickening in suspensions journal September 2016
Hydrodynamics control shear-induced pattern formation in attractive suspensions journal June 2019
Flow-induced structure in colloidal suspensions journal January 2005
Simultaneous Rheoelectric Measurements of Strongly Conductive Complex Fluids journal December 2016
Shear thickening and scaling of the elastic modulus in a fractal colloidal system with attractive interactions journal June 2008
Thixotropy in viscoplastic drop impact on thin films journal April 2021
Transient Shear Banding in a Simple Yield Stress Fluid journal May 2010
Rheological Hysteresis in Soft Glassy Materials journal January 2013
Convective Cage Release in Model Colloidal Glasses journal November 2015
Nonmonotonic Stress Relaxation after Cessation of Steady Shear Flow in Supramolecular Assemblies journal November 2019
Multiscale Nature of Thixotropy and Rheological Hysteresis in Attractive Colloidal Suspensions under Shear journal December 2019
Scaling of the Viscoelasticity of Weakly Attractive Particles journal July 2000
Rejuvenation and Overaging in a Colloidal Glass under Shear journal July 2002
Residual stresses and shear-induced overaging in boehmite gels journal April 2022
Viscosity bifurcation in thixotropic, yielding fluids journal May 2002
Thixotropy: Build-up and breakdown curves during flow journal November 2005
Exploring stress overshoot phenomenon upon startup deformation of entangled linear polymeric liquids journal November 2009
Letter to the Editor: Wall slip in dispersion rheometry journal November 2010
The rheology of multiwalled carbon nanotube and carbon black suspensions journal November 2012
Time dependence in large amplitude oscillatory shear: A rheo-ultrasonic study of fatigue dynamics in a colloidal gel journal September 2014
Constitutive equations for thixotropic fluids journal May 2015
On the inseparability of slip and gap-error journal July 2016
Shear-banding in wormlike micelles: Beware of elastic instabilities journal September 2016
Superposition rheology and anisotropy in rheological properties of sheared colloidal gels journal September 2017
Modeling the rheology of thixotropic elasto-visco-plastic materials journal July 2019
A review of thixotropy and its rheological modeling journal May 2019
Structure-property relationships of sheared carbon black suspensions determined by simultaneous rheological and neutron scattering measurements journal May 2019
Testing shear thinning/thixotropy and shear thickening/antithixotropy relationships in a fumed silica suspension journal July 2020
Viscoelastic Hysteresis. Part II. Numerical and Experimental Examples journal December 1968
Viscoelastic Hysteresis. Part I. Model Predictions journal December 1968
The Response of Viscoelastic Liquids to Complex Strain Histories: The Thixotropic Loop journal April 1986
Testing the structure of magnetic paints with and without superimposed shear journal November 1997
Yielding, thixotropy, and strain stiffening of aqueous carbon black suspensions journal July 2020
Direct measurements of the microstructural origin of shear-thinning in carbon black suspensions journal March 2021
Distinguishing thixotropy from viscoelasticity journal July 2021
Modeling orthogonal superposition rheometry to probe nonequilibrium dynamics of entangled polymers journal September 2021
Thixotropic spectra and Ashby-style charts for thixotropy journal August 2022
Shear Banding of Complex Fluids journal January 2016
Assessment of Percolation Threshold Simulation for Individual and Hybrid Nanocomposites of Carbon Nanotubes and Carbon Black journal September 2017

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