Tribology Performance Of The Water Based Lubricant Containing Tall Oleic Acid Diethanolamide

As the world energy crisis intensifies and the social environmental protection consciousness enhances,more and more attentions are paid to the research of water-based lubricants;The major research direction of water-based lubricant is to obtain good comprehensive performance such as extreme pressure and anti-wear property?anti-rust and anticorrosion property of additives through molecular design or compound.This article choosed tall oleic acid diethanolamide with synthetic raw material ratio of 1:1 as the research object,to explore its extreme pressure and antiwear property,antirust and anticorrosion property according to respectively GB-T3142-1982 and GB/6144-2010,to investigate its film-forming performance using the reciprocating point contact optical interference film thickness measurement device.Triethanolamine boric acid ester was choosed as compound additives.Firstly,its extreme pressure and antirust property?antirust and anticorrosion property was examined,then tall triethanolamine oleic acid diethanolamide and boric acid ester were compounded with different proportion distribution,to explore its extreme pressure and antirust property?antirust and anticorrosion property.Research conclusions are as follows:(1)The higher tall oleic acid diethanolamide water-based lubricant concentration,the better performance of extreme pressure,the worse performance of anti-wear.(2)Tall oleic acid diethanolamide water-based lubricant is not corrosive,but antirust effect is not strong;The triethanolamine boric acid ester water-based anti-rust liquid exhibits poor extreme pressure properties,but has good antirust effect,except that it has some corrosive effect to the aluminum alloy.The compounded liquid of tall oleic acid diethanolamide and triethanolamine boric acid ester has better anticorrosion performance.(3)The triethanolamine boric acid ester exhibits poor extreme pressure properties,but it could improve the extreme pressure and antiwear performance of the tall oleic acid diethanolamide.The comprehensive performance such as extreme pressure and antiwear is best with quality ratio of 2:1 distribution of liquid.(4)Water-based lubricants film-forming performance is poor under static loading,the dynamic value of film thickness and the entrainment velocity is under the lag correlation,the greater the entrainment velocity,the better the film-forming performance.Because water-based lubricants viscosity is smaller,the value of film thickness and concentration of water-based lubricants has no obvious relationship.