氨基酸离子液体润滑剂的结构与摩擦学行为的关系

发布时间：2018-01-07 02:10

本文关键词：氨基酸离子液体润滑剂的结构与摩擦学行为的关系　出处：《中国表面工程》2017年03期 　论文类型：期刊论文

【摘要】：利用酸碱中和法合成了一系列季铵盐和季膦盐氨基酸离子液体(AAILs)润滑剂,以合成润滑油聚α-烯烃(PAO10)和传统含氟离子液体1-丁基-3-甲基咪唑双三氟甲烷磺酰亚胺盐(L-F104)作为参照样,评价了粘温性能、热稳定性以及作为不同摩擦副润滑剂的润滑性能,探索了阴、阳离子结构对其物理化学性质和摩擦学性能的影响规律。结果表明:季膦盐氨基酸离子液体的粘温性能和热稳定性明显优于季铵盐氨基酸离子液体;这些离子液体中,阴离子上硫元素的引入可显著提高其粘温性能,而芳环的引入却使其粘温性能明显下降。结构对其摩擦学性能的影响规律与摩擦副种类有关:当钢/钢、钢/铜摩擦副作为润滑剂时,在常温或高温条件下,均具有优异的减摩抗磨性能;当钢/铝摩擦副作为润滑剂时,只有含芳基的季铵盐氨基酸离子液体具有优于PAO 10和L-F104减摩抗磨性能。
[Abstract]:A series of quaternary ammonium and phosphonium salts of amino acid ionic liquid synthesized by neutralization method (AAILs) for the synthesis of lubricating oil lubricant, poly alpha olefins (PAO10) and traditional fluorinated ionic liquid 1- butyl -3- methylimidazolium double three fluoro methane sulfonyl imide salt (L-F104) as a reference sample, viscosity temperature performance evaluation the thermal stability, as well as the lubricant lubrication performance of different friction, explore the influence of Yin, cationic structure on the physical and chemical properties and tribological properties. The results show that the viscosity temperature performance and thermal stability was better than that of quaternary phosphonium salts of amino acid ionic liquid amino acid ionic liquid; these ionic liquids, introducing anionic sulfur the elements can significantly improve the viscosity temperature performance, and the introduction of aromatic ring but the viscosity temperature performance decreased significantly. The structure on their tribological properties and the impact of friction type: the steel / steel and steel / copper When the friction pair is used as lubricant, it has excellent antifriction and anti-wear performance at room temperature or high temperature. When the steel / aluminum friction pair is used as lubricant, only aromatic quaternary ammonium amino acid ionic liquid has better friction and wear resistance than PAO 10 and L-F104.

【作者单位】：宝鸡文理学院化学化工学院;中国科学院兰州化学物理研究所固体润滑国家重点实验室;
【基金】：国家自然科学基金(51675006) 中国科学院兰州化学物理研究所固体润滑国家重点实验室开放基金(LSL-1408) 陕西省自然科学基础研究计划(2016JZ017)~~
【分类号】：TH117
【正文快照】： Fund:Supported by National Natural Science Foundation of China(51675006),Open Fund of State Key Laboratory of Solid Lubrication of LanzhouInstitute of Chemical Physics(LSL-1408)and Natural Science Basic Research Program of Shaanxi(2016JZ017)引文格式:凡明

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