Zero-shear-rate viscosity measurements for polymer solutions by falling ball viscometry

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30 Scopus citations

Abstract

Falling ball viscometry experiments were carried out for three polymer solutions. The data were analyzed following eight different methods available in the literature for obtaining the zero-shear-rate viscosity. It is concluded that the procedures involving extrapolation of the natural logarithm of the apparent viscosity to zero characteristic shear stress is the most reliable technique for obtaining an estimate of the zero-shear-rate viscosity.

Original languageEnglish
Pages (from-to)97-109
Number of pages13
JournalJournal of Non-Newtonian Fluid Mechanics
Volume6
Issue number2
DOIs
StatePublished - 1 Jan 1979
Externally publishedYes

ASJC Scopus subject areas

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

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