Molecular network model for the rheology of gelling polymer solutions

A. S. Chu, R. K. Prud'homme

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A molecular network model is proposed to describe the rheology of macromolecular solutions undergoing chemical or physical gelation. The model is based on the Bird-Carreau network model [1] with the addition of chemical reaction kinetics to predict the formation of chemical crosslinks among the polymer molecules in solution. The goal is to provide a framework for describing the rheology of gels, that are currently used as fracturing fluids in oil well simulation, formed from polymer solutions that are crosslinked by the addition of transition metal ions. The model has the ability to predict an increase in storage modulus with time, shear thinning viscosity, stress overshoot upon the inception of shear flow, and viscosity changes during the simulation of flow histories that are representative of those encountered in fracturing operations.

Original languageEnglish (US)
Pages (from-to)207-218
Number of pages12
JournalJournal of Non-Newtonian Fluid Mechanics
Volume22
Issue number2
DOIs
StatePublished - 1987

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

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