Synthesis and performance analysis of rapeseed oil base-microemulsion extreme pressure lubricator

A new type of rapeseed oil base-phosphate compound with extreme pressure element S,P and N was synthesized by using rapeseed oil as raw material,methanol and multihydroxylate as ester-exchange agent,S and P_2O_5 as modifier.It was proved that the compound contained element S,P,N and hydroxyl by means of infrared spectrometry.The outcome of synthesis may be made into microemulsion extremepressure lubricator by means of emulsificationself.After the emulsion of the lubricator(around 2.5%) was prepared,,its emulsification and tribological behavior was probed by testing.The results showed that the emulsification ability and antirust ability was excellent and the triibological behavior parameter of the lubricating liquid was PB:1260N,optimal value of the WSD and lubricating coefficient(μ)was respectively 0.33mm and 0.039.The triibological behavior of the lubriator is batter then same class product with oil as lubrication medium reported recently.