Abstract

CHITUE-DE-ASSUNCAO-NASCIMENTO, Juliano et al. Characterization of biogrease based on Jatropha curcas L vegetable oil and Lithium Soap Thickener. Ingeniería Mecánica [online]. 2013, vol.16, n.2, pp. 171-177. ISSN 1815-5944.

Vegetable oils have a great potential as a base fluid and a substitute for mineral oil in grease formulation, these oils are biodegradable and renewable. In this paper were determined the physicochemical, antiwear and extreme pressure properties of a biogrease based on Jatropha curcas L vegetable oil and lithium soap thickener. In this work is using the lubricanting greases standard test methods. The biogrease have a light yellow color, soft and homogeneous texture, a penetration grade NLGI 1, a drop point of 145 oC, appropriate magnitudes of free alkalis and copper corrosion; as well as antiwear and extreme pressure properties similar to the other mineral lubricating grease and formulated biogreases with differents vegetable oils.

Keywords : biogrease; Jatropha curcas L vegetable oil; lithium soap thickener; physicochemical properties; antiwear properties; extreme pressure properties.

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