Triprotic Ammonium Oleate Ionic Liquid Crystal Lubricant for Copper-Copper Friction and Wear Reduction

The triprotic ammonium carboxylate ionic liquid crystal (2-hydroxyethyl)ammonium oleate (MO) has been studied as a neat lubricant and additive in two base oils, PAO6 100N. lubricants have used commercially pure copper-OFHC copper balls on disk reciprocating sliding contact at room temperature. Neat MO presents very good lubricating performance, with friction coefficient of 0.06 wear rate OFHC 4.15 × 10?7 mm3/N·m. These results are, respectively, 94% 98% lower than those obtained for PAO6, similar reductions respect to also an 2wt.% proportion. severe abrasive mechanism that takes place the presence oils is reduced by additive.