Abstract

AbstractDue to growing environmental concerns, eco‐friendly processes and materials have become one of the key interests of research and in the area of tribology, natural esters are gaining popularity as lubricants. Natural esters are being used in many applications as eco‐friendly lubricant base. In Europe, canola/rapeseed oil and sunflower oil are mainly used, whereas in the USA, soybean oil is in use for formulating environmentally friendly lubricants. Native and genetically modified high oleic varieties of these oils are being widely used. In the Indian scenario, since the above‐mentioned oils are scarcely available for industrial applications, there is a need to look for other viable alternatives. Some candidate non‐edible vegetable oils of Indian origin were selected which were unexplored or less explored in the field of lubricant application, and their suitability in lubricant application focusing mainly on physico‐chemical characteristics, thermo‐oxidative stability and lubrication characteristics was studied. These oils were found to be promising candidates for application in lubricants in view of their physico‐chemical characteristics and better thermo‐oxidative and hydrolytic stability. Copyright © 2007 John Wiley & Sons, Ltd.

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