WANG Li1,LUO Ting1,CHEN Xinchun2,CAO Bingqiang1
(1. School of Material Science and Engineering,University of Jinan,Jinan 250022,China;2. State Key Laboratory of Tribology,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China)
Abstract: The preparation methods of spherical micro-nano-particles additives,such as hydrothermal method,chemical precipitation method,sol-gel method,laser irradiation method,were reviewed. Then,the friction reduction,anti-wear properties and lubrication mechanism of different spherical micro-nano-particles as lubricating oil additives,such as metal monomer,metal oxide,sulfide,silicon carbide and its complex were analyzed. In addition，the effective lubrication mechanism of spherical micro-nano-particles is summarized,including micro-bearing effect,polishing effect,self-repairing effect and the formation of lubricating friction layer on the substrate. Moreover,the problems such as low sphericity of spherical micro-nano-particles as lubricating oil additives,unclear synergistic mechanism of easy agglomeration and composite particles in friction process are put forward. Finally，developing the preparation method of green,pollution-free and industrializable lubricating oil additives,exploring the dispersibility of spherical micro-nano-particles and the friction mechanism of composite lubricating oil additives on the micro-scale are the focus of this field.
Keywords: lubricant additive；spherical micro-nano-particles；antiwear and antifriction
中图分类号：TE624 文献标志码：A
文章编号：1008-5548(2020)01-0053-08
DOI:10.13732/j.issn.1008-5548.2020.01.009
收稿日期： 2019-06-13，修回日期：2019-06-26，在线出版时间：2019-07-23 14:36。
基金项目：国家自然科学基金，编号：51872161，51671094，51605247；山东省自然科学基金，编号：ZR2016BM2。
第一作者简介：王丽(1994—)，女，硕士研究生，研究方向为润滑油添加剂的摩擦性能。E-mail：807047915@qq.com。
通信作者简介：曹丙强(1978—)，男，教授，博士生导师，研究方向为半导体物理。E-mail：mse_caobq@ujn.edu.cn。
