Low temperature rheological studies of hydrocarbon base lubricants

David Venerus, E. E. Klaus, J. L. Duda

Research output: Contribution to conferencePaperpeer-review

Abstract

The low temperature rheological behavior of a number of lubricants was examined in the range of-12 to-37°C over a shear rate range of one to 1000 sec-1. Results are presented for the following fluids: a waxy mineral oil, a synthetic hydrocarbon oil (poly-alpha olefin) and four oils each containing an olefin copol ymer (OCP) viscosity index improver with different additive packages. All samples were subjected to the same cooling history consisting of a 0.56°C/min cooling rate, followed by a one hour soak period before data was collected. These data demonstrate that waxy oils without VI improvers can show non-Newtonian and viscoelastic behavior similar to data at low temperatures for polymer-thickened oils in a non-waxy solvent. Combinations of wax and VI improver can show both shear thinning and shear thickening, as well as viscoelastic properties.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 1987
Externally publishedYes
EventInternational Fuels and Lubricants Meeting and Exposition - Toronto, ON, Canada
Duration: Nov 2 1987Nov 5 1987

Conference

ConferenceInternational Fuels and Lubricants Meeting and Exposition
Country/TerritoryCanada
CityToronto, ON
Period11/2/8711/5/87

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering
  • Automotive Engineering

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