Abstract
The microstructural link to the rheology of carbon black suspensions has recently become clear as a result of advances in computational and experimental methods. This understanding reveals the important role of the restructuring, build-up, and break-up of carbon black agglomerates in simple shear, rationalized by a dimensionless balance of the hydrodynamic forces acting to break the agglomerates apart against the cohesive forces holding them together (i.e., the Mason number). The Mason number not only can predict the origin of reversible thixotropy seen in carbon black suspensions observed at higher shear intensities, but can also be used to rationalize the evolution of microstructure at lower shear intensities. This review focuses on carbon black suspension behavior, but the insights derived from carbon black suspensions are broadly applicable to a diverse class of soft matter including colloidal gels relevant to a variety of applications.
| Original language | English (US) |
|---|---|
| Article number | 1245847 |
| Journal | Frontiers in Physics |
| Volume | 11 |
| DOIs | |
| State | Published - 2023 |
Funding
QL was funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences Energy Frontier Research Centers program under Award No. DE-SC-0022119. QL acknowledged that this research was supported in part by an appointment to the Oak Ridge National Laboratory GRO Program, sponsored by the U.S. Department of Energy and administered by the Oak Ridge Institute for Science and Education. PR was funded by the National Science Foundation under Grant Nos. CBET-2047365 and DMR-1720139-006. JR recieved partial funding from the National Science Foundation and the Department of Energy.
Keywords
- antithixotropy
- carbon black
- microstructure
- rheology
- rheopexy
- suspension
- thixotropy
ASJC Scopus subject areas
- Biophysics
- Materials Science (miscellaneous)
- Mathematical Physics
- General Physics and Astronomy
- Physical and Theoretical Chemistry