Measurement of Temporary and Permanent Shear with the Instron Capillary Rheometer

TW Johnson; MT O'Shaughnessy

doi:10.1520/STP34807S

SYMPOSIA PAPER Published: 01 January 1977

STP34807S

Measurement of Temporary and Permanent Shear with the Instron Capillary Rheometer

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The Instron Capillary Rheometer, with special extremely fine capillaries, has been used to measure the apparent viscosities of non-Newtonian polymer-thickened multigrade oils at temperatures from 100°F to 320°F and shear rates to 10⁶ sec⁻¹. The same apparatus can produce permanent shear under extreme conditions. Temporary shear data at 100°, 150°, 210°, 280° and 320°F are reported for eight commercial oils and five experimental oils formulated with different VI improvers in the same base oil. Permanent shear data are given for a larger set of oils.

Author Information

Johnson, TW

O'Shaughnessy, MT

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Details

Developed by Committee: D02

Pages: 57–69

DOI: 10.1520/STP34807S

ISBN-EB: 978-0-8031-4694-5

ISBN-13: 978-0-8031-0549-2

Measurement of Temporary and Permanent Shear with the Instron Capillary Rheometer

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