Low temperature rheological studies of hydrocarbon base lubricants

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

doi:10.4271/872048

Low temperature rheological studies of hydrocarbon base lubricants

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

Research output: Contribution to conference › Paper › peer-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 language	English (US)
DOIs	https://doi.org/10.4271/872048
State	Published - Dec 1 1987
Externally published	Yes
Event	International Fuels and Lubricants Meeting and Exposition - Toronto, ON, Canada Duration: Nov 2 1987 → Nov 5 1987

Conference

Conference	International Fuels and Lubricants Meeting and Exposition
Country/Territory	Canada
City	Toronto, ON
Period	11/2/87 → 11/5/87

All Science Journal Classification (ASJC) codes

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

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10.4271/872048

Cite this

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title = "Low temperature rheological studies of hydrocarbon base lubricants",

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.",

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year = "1987",

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doi = "10.4271/872048",

language = "English (US)",

note = "International Fuels and Lubricants Meeting and Exposition ; Conference date: 02-11-1987 Through 05-11-1987",

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T1 - Low temperature rheological studies of hydrocarbon base lubricants

AU - Venerus, David

AU - Klaus, E. E.

AU - Duda, J. L.

PY - 1987/12/1

Y1 - 1987/12/1

N2 - 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.

AB - 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.

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ER -

Low temperature rheological studies of hydrocarbon base lubricants

Abstract

Conference

All Science Journal Classification (ASJC) codes

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