SciELO - Scientific Electronic Library Online

 
vol.17 issue3Alternative of double coating for electrode dedicated to the manual metal arc filler processDevelopment of Composite with Henequen´s fibres and termofix matrix author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO

Share


Ingeniería Mecánica

On-line version ISSN 1815-5944

Abstract

DE ASSUNCAO-NASCIMENTO, Juliano-Chitue; LAFARGUE-PEREZ, Francisco; REYES-SEMANAT, Luís  and  DIAZ- VELASQUEZ, Manuel. Physicochemical and tribological properties of graphite grease based on Jatrophacurcas L oil and lithium soap. Ingeniería Mecánica [online]. 2014, vol.17, n.3, pp.255-263. ISSN 1815-5944.

Lubricating greases are considered as colloidal dispersions of a thickener in a lubricating fluid. The vegetable oils are widely used in many formulations of greases. In this paper were determined the physicochemical and tribological properties of graphite grease based on Jatropha curcas L vegetable oil and lithium soap (JC1G5). Alpha tocofherol acetate and graphite were used as antioxidant and extreme pressure additives respectively. The grease JC1G5 showed a black color, a dropping point of 140 oC, appropriate magnitude of copper corrosion and consistency NLGI Grade 1. Lubrication performance of the grease JC1G5 was tested using the 4-ball wear tester and timken tribometer tester. Results indicate that the grease JC1G5 has tribological properties comparable to that of mineral oil base lithium grease.

Keywords : grease; jatrophacurcas L; lithium soap; physicochemical properties; tribological properties.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )