Low Temperature Rheological Studies of Hydrocarbon Base Lubricants 872048
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.
Citation: Venerus, D., Klaus, E., and Duda, J., "Low Temperature Rheological Studies of Hydrocarbon Base Lubricants," SAE Technical Paper 872048, 1987, https://doi.org/10.4271/872048. Download Citation
Author(s):
D. C. Venerus, E. E. Klaus, J. L. Duda
Affiliated:
Dept. of Chemical Engineering PSU University Park, PA
Pages: 12
Event:
1987 SAE International Fall Fuels and Lubricants Meeting and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Synthetic lubricants
Lubricants
Hydrocarbons
Historical reference
Technical review
Logistics
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