Keywords

Additive Viscosity Index Improver, Elastohydrodynamic Lubnrication, Rheological Properties

Track

Lubrication Fundamentals IV (Session 4A) 

Rheological and Tribological Properties of Viscosity Index Improver Polymers in Base Oils

The air pollution requirements and the quest of minimum energy consumption push manufacturers to decrease all types of power loss in the internal combustion engine. Friction dissipating, 15% of the total energy, is one of the critical points [1]. The viscosity and specially the variation of the viscosity with temperature is an important property of a motor oil where frictions can be reduced by adjusting its formulation. To ensure correct performance of the automotive engines, lubricants incorporate in their formulation Viscosity Index Improver (VII) additives.

Authors and Company/Institution

Damien Chaveroux and Jean-François Tassin, Sciences, Université du Maine, Le Mans, France,
Raphaèle Iovine, Lubricants, Total CReS, Solaize, France