酰胺型有机摩擦改进剂的制备及摩擦学性能研究  

Preparation and Tribological Study of Novel Amide-Based Organic Friction Modifiers

作　　者：胡萌 马瑞[2] 张恩惠 张晟卯[1] 李维民[2,3] HU Meng;MA Rui;ZHANG Enhui;ZHANG Shengmao;LI Weimin(Nanomaterials Engineering Research Center,Henan University,Henan Kaifeng 475004,China;State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Gansu Lanzhou 730000,China;Zibo Innovation Center of High-End Synthetic Lubricating Materials,Shandong Zibo 255000,China)

机构地区：[1]河南大学纳米材料工程研究中心,河南开封475004 [2]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,甘肃兰州730000 [3]淄博高端合成润滑材料创新中心,山东淄博255000

出　　处：《摩擦学学报（中英文）》2024年第8期1021-1031,共11页Tribology

基　　金：国家自然科学基金项目(51975560);中国科学院兰州化学物理研究所重点项目(KJZLZD-1);泰山学者工程和山东省重点研发计划(2020CXGC011002)资助。

摘　　要：采用油胺与双丙酮丙烯酰胺、N,N-二甲基乙酰基乙酰胺通过酮胺缩合反应制备了2种新型酰胺型有机摩擦改进剂(DAO、DMO),所制备的有机摩擦改进剂在基础油PAO6中具有良好的溶解性.研究了DAO、DMO在不同温度下(25、80和135℃)的摩擦学性能,考察了有机摩擦改进剂与二烷基二硫代磷酸锌(ZDDP)复配后的摩擦学性能.结果表明,在不同温度下DAO与DMO在PAO6中具有良好的减摩抗磨性能,且2种有机摩擦改进剂均与ZDDP表现出良好的协同减摩作用.拉曼光谱(Raman)和X射线光电子能谱仪(XPS)分析表明2种有机摩擦改进剂与ZDDP之间的协同作用主要得益于有机摩擦改进剂与ZDDP分子间的相互作用,在摩擦过程中发生摩擦化学反应,产生含有磷酸盐和硫化物等耐磨性化合物的致密摩擦化学反应膜,同时有机摩擦改进剂在ZDDP摩擦膜表面发生吸附,边界润滑膜与吸附膜共同作用实现了高温环境下良好的减摩与抗磨性能.Energy saving and emission reduction are the two most important driving forces to promote the advancement of internal combustion engine technology,and the requirements of energy saving and emission reduction promote the development of engine oil to the direction of low viscosity,low sulfate ash,low phosphorus and low sulfur(SAPS).Low viscosity engine oil can reduce friction during engine operation to a certain extent and play a role in energy saving,but with the reduction of viscosity,its anti-friction performance will also be affected to a certain extent.Low SAPS will also limit the use of some anti-wear additives containing sulfur,phosphorus and other elements,resulting in a decline in the tribological properties of engine oil.In order to solve this problem,the organic friction modifiers with low sulfur and phosphorus content and no ash content were studied in this paper.At present,the widely used organic friction modifiers were prone to desorption at high temperature,which led to their tribological properties becoming unstable at high temperature.Therefore,this paper studied the amide type organic friction modifiers adsorbed at multiple sites.Two novel amide type organic friction modifiers(DAO and DMO)were prepared by keto amine condensation reaction with oleo amine and diacetone acrylamide,N,N-dimethylacetylacetamide.The prepared organic friction modifiers had good solubility in PAO6.The tribological properties of DAO and DMO at different temperatures(25,80 and 135℃)and the tribological properties of organic friction modifier combined with zinc dialkyldithiophosphate(ZDDP)were studied.The results showed that DAO and DMO had good anti-friction and anti-wear properties in PAO6 at different temperatures,and both of the two organic friction modifiers showed good synergistic anti-friction effects with ZDDP.At the same time,scanning electron microscopy was used to analyze the wear surface after friction.The analysis results showed that when the friction modifiers DAO,DMO and ZDDP were combined,they played a syner

关 键 词：酰胺 有机摩擦改进剂 减摩 二烷基二硫代磷酸锌 协同润滑 

分 类 号：TH117.1[机械工程—机械设计及理论]