Influence of TiO2 as nano additive in rapeseed oil

Abstract

This paper presents the influence of TiO2 as additive in refined rapeseed oil in different massic concentration (0.25%wt, 0.50%wt and 1%wt) on the tribological parameters. Tests are done on a four-ball machine from the laboratory LubriTest, at "Dunarea de Jos" University of Galati. The test parameters were load: 100 N, 200 N and 300 N and the rotational speed 1000 rpm, 1400 rpm and 1800 rpm. Particles of TiO2 have an average size of 21°5 nm. The rapeseed oil was supplied by Prutul Galati. For the tested ranges of the parameters, the additivation of rapeseed oil with TiO2 do not improve the friction coefficient and the wear rate of WSD. The additivation of rapeseed oil with TiO2 is still less efficient for the tested ranges of load and speed as compared to the neat rapeseed oil, but there is visible that friction coefficient and analysed wear parameter are less influenced by the regime for the concentration of 1% TiO2 in rapeseed oil.