Date of Award
Civil and Environmental Engineering
Asfour, A. A.
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The objective of this work is to study the effect of polymeric additives upon the viscosity of two different base stocks over the temperature range -25°C to 10°C. The two base stocks being, (i) Imperial oil's MXT-5 base stock, and (ii) Chevron oil's Group III base stock. Four different viscosity-index improvers at five concentrations were employed. The viscosity-index improvers' behavior was studied in presence of pour-point depressants. The viscosity-index improvers being: hydrogenated diene copolymer (HDP) [C95-209], dispersant olefin copolymer (DOCP) [C96-309], olefin copolymer (OCP) [C98-129], polymethylacrylate (PMA) [C93-009]. The pour-point depressants are: acryloid 154-70 and paraflow 387. Kinematic viscosities and densities of all the base stocks and dilute polymer oil solutions were measured at -25, -20, -15, -10, -5, 0.0, and 10°C. Relative and specific viscosity values for the lubricant/polymer systems were calculated and are reported at the temperature levels employed in this study.Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2003 .K375. Source: Masters Abstracts International, Volume: 42-03, page: 0989. Adviser: A. A. Asfour. Thesis (M.A.Sc.)--University of Windsor (Canada), 2003.
Kashkooli, Sheila., "Viscometric properties of lubricating oils in the presence of pour-point depressants and viscosity-index improvers at different temperature levels." (2003). Electronic Theses and Dissertations. 4529.