QUASI-ELECTRORHEOLOGICAL PROPERTIES OF SELECTED BASE ENGINE OILS
Journal Title: Tribologia - Year 2015, Vol 262, Issue 4
Abstract
The paper presents the experimental results of research on the effect of an external DC electric field on the braking torque in a rotating shaft–oil– –rotary lip seal system. In the research, polyalkylene glycol (PAG) and polyalphaolefin (PAO) base oils and two additives antiwear (AW) and friction modifier (FM) were used. These experiments were performed for different temperatures of pure base oils and their blends with the AW and FM agents. Electrorheological properties of base oils and blends with AW and FM additives were performed using a rotating rheometer, which worked in the plate-plate system. A DC voltage across the upper and lower plates was generated by a current/voltage power pack. In both experiments, it was found that the DC electric field in both interfacial systems caused the braking torque and the complex viscosity modulus to be changed.
Authors and Affiliations
Juliusz B. GAJEWSKI, Marek J. GŁOGOWSKI, Maciej PASZKOWSKI
Keywords
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