Due to its high viscosity index,low volatility,good biodegradability and lubricity,vegetable oil has the potential of being an environment-friendly bio-lubricant.However,its poor oxidation stability and low temperature fluidity limit its application in the field of fric...MORE Due to its high viscosity index,low volatility,good biodegradability and lubricity,vegetable oil has the potential of being an environment-friendly bio-lubricant.However,its poor oxidation stability and low temperature fluidity limit its application in the field of friction.The principle,catalytic reagents,modification e...