As the environment problems with mineral oil being used in the most of industrial applications have became important for the industrized countries, some vegetable oils are being studied as an environmentally acceptable oil in these day. But there are ...
As the environment problems with mineral oil being used in the most of industrial applications have became important for the industrized countries, some vegetable oils are being studied as an environmentally acceptable oil in these day. But there are some problems for vegetable oil to be used as a machine oil because of oil supply, oil properties as a lubricant for machines and biodegradability. From the study, it was found that rapeseed oil is the most promising environmentally acceptable oil among the vegetable oils. It has a good properties as for a lubricating oil and a good biodegradability, but the oxidation stability and the increase of viscosity in the oil are the problems to be improved by formulation with some additives in order to be replaced for mineral oils or synthetic oils. If the rapeseed oil is used only within a short time as a wo-cycle engines and etc, it can be a good lubricating oil enough to be used in machines having an excellent biodegradability.