西安理工大学学报2023，Vol.39Issue(4)：521-528,566,9.DOI:10.19322/j.cnki.issn.1006-4710.2023.04.008
多孔Cu-BTC/Ag纳米复合润滑剂减摩与自修复性能研究
Antifriction and self-healing properties of porous Cu-BTC/Ag nanocomposite lubricant
摘要
Abstract
In this paper,a new porous Cu-BTC/Ag nanocomposite additive was designed to solve the problem of wear failure caused by poor interfacial anti-friction durability of lubricants,with its tribological properties and interfacial self-healing behavior studied.Firstly,porous Cu-BTC/Ag nano-composite lubricant additive was prepared by the solvothermal method,and it had been used to characterize the microstructure by using the scanning electron microscope(SEM).Secondly,the nano-composite lubricant additive was dispersed into n-hexadecane base oil.Finally,the tri-bological property of the nano-composite lubricant additive was studied by using UMT-5 multi-functional friction and wear testing machine.The results show that Cu-BTC/0.1％Ag nano-composite lubricant additive has the best anti-friction effect,which reduces the friction coefficient by about 31％compared with that by n-hexadecane.Based on the SEM figures of wear surface,3D morphologies of wear surface and wear width and depth bar graph,it can be seen that the width and depth of the wear marks are reduced by approximately 35.2％and 68％respectively.The number of abrasion marks becomes less,the depth becomes shallower and the wear surface is flatter.Due to the porous structure of the additive,a small amount of lubricant is stored in the pores.During the friction process,the internal lubricating oil of the additive continues to supply to the friction interface,which plays a continuous lubrication effect on the frictional contact area.The EDS analysis of the surface of the friction marks showed that there was a large amount of copper element,indicating that the porous Cu-BTC was extruded and deformed under stress,and that the single crystal nanoparticles kept filling the scratches and furrows of the friction interface,which had the function of repairing the friction interface.关键词
纳米Ag/纳米复合添加剂/多孔结构/持续润滑/自修复Key words
nano Ag/nano-composite lubricant additive/porous structure/continuous lubrica-tion/self-rapairing分类
机械制造引用本文复制引用
王宇芸,张国亮,尹维,杨铎,翁艺斌,李奇..多孔Cu-BTC/Ag纳米复合润滑剂减摩与自修复性能研究[J].西安理工大学学报,2023,39(4):521-528,566,9.基金项目
国家自然科学基金资助项目(52175181) （52175181）
中国石油集团安全环保技术研究院石油石化污染物控制与处理国家重点实验室开放课题项目(PPC2020011) （PPC2020011）
