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Functional Olefin Copolymers for Low Viscosity Energy Efficiency HDEO and PCMO
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
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There is still a need in the industry for engine oils that have low viscosities to improve vehicle fuel efficiency but also protect engines from wear. Viscosity modifiers (VMs) are chief additives responsible for adjusting the viscometric characteristics of automotive lubricants. Most notably, VMs have a significant impact on a lubricant's viscosity-temperature relationship as indicated by viscosity index (VI), cold cranking simulator (CCS) viscosity, and high temperature high shear (HTHS) viscosity of engine oils. Functional copolymers bearing branched, linear, or anti-wear functionalities have been synthesized and evaluated for viscometric and wear protection performance. The resulting polymers improved tribofilm formation, shear stability and CCS viscosities. Indirect benefits including Noack improvement and trim oil reduction were observed.
CitationA., C., S., J., M. T., D., B., S. et al., "Functional Olefin Copolymers for Low Viscosity Energy Efficiency HDEO and PCMO," SAE Technical Paper 2019-01-2201, 2019, https://doi.org/10.4271/2019-01-2201.
Data Sets - Support Documents
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