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Shear dependence of viscosity for perfluoropolyether fluids

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Abstract

The shear dependence of the bulk viscosities of two structurally different types of perfluoropolyether fluids was determined by two different techniques. The first involved direct measurement in a high shear Couette viscometer, the second utilized the time-temperature superposition principle to establish master curves from viscosity determinations at low shear rates and temperature; the results are comparable. Both fluids begin to show non-Newtonian behavior at shear rates above 10,000 s−1.

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Authors and Affiliations

  1. General Products Division, International Business Machines Corporation, 95193, San Jose, Cal., USA

    M. J. R. Cantow, T. Y. Ting & E. M. Barrall II

  2. Polymer Science and Engineering Department, University of Massachusetts, 01003, Amherst, Mass., USA

    R. S. Porter & E. R. George

Authors
  1. M. J. R. Cantow
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  2. T. Y. Ting
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  3. E. M. Barrall II
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  4. R. S. Porter
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  5. E. R. George
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Cantow, M.J.R., Ting, T.Y., Barrall, E.M. et al. Shear dependence of viscosity for perfluoropolyether fluids. Rheol Acta 25, 69–71 (1986). https://doi.org/10.1007/BF01369983

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  • DOI: https://doi.org/10.1007/BF01369983

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