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第 41 卷 第 4 期 摩 擦 学 学 报 Vol 41 No 4
2021 年 7 月 Tribology Jul, 2021
DOI: 10.16078/j.tribology.2020197
高温热效应对复合锂基润滑脂性能
影响规律研究
2,3
1
1,4*
1,2
2,3*
胡金涛 , 张安生 , 张恩惠 , 李维民 , 王 静 , 王晓波 2,3
(1. 青岛理工大学 机械与汽车工程学院，山东 青岛 266520;
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. 青岛市资源化学与新材料研究中心，山东 青岛 266100;
4. 东华大学 机械工程学院，上海 201620)
摘 要: 作者在本文中主要研究了热效应对复合锂基润滑脂基础脂以及含有二烷基二硫代磷酸锌(ZDDP)的复合锂
基润滑脂微观结构、润滑性能以及流变学性能的影响规律. 复合锂基润滑脂经120和150 ℃恒温热处理24 h后，对其
外观、红外光谱、边界润滑性能、弹流润滑性能和流变学性能进行了测试. 研究结果表明：120 ℃热处理对复合锂基
润滑脂性能影响较小，但基础脂以及含有抗磨添加剂的润滑脂在经历150 ℃热处理后，增稠剂纤维结构变得更为松
散，发生明显断裂、网状结构严重破坏，在150 ℃下含有添加剂的复合锂润滑脂的结构强度和触变性明显变差. 上述
研究表明，高温条件下的热效应对润滑脂微观结构破坏更大，更容易造成润滑脂性能的显著变化.
关键词: 复合锂基润滑脂; 热效应; 流变性能; 微观结构; 弹流膜厚; ZDDP
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2021)04–0447–08
Influence of High Temperature Thermal Effect on the
Properties of Complex Lithium Grease
1,2
1,4*
2,3*
2,3
1
HU Jintao , ZHANG Ansheng , ZHANG Enhui , LI Weimin , WANG Jing , WANG Xiaobo 2,3
(1. School of Mechanical and Automotive Engineering, Qingdao Technological University,
Shandong Qingdao 266520, China
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese
Academy of Sciences, Gansu Lanzhou 730000, China
3. Qingdao Center of Resource Chemistry and New Materials, Shandong Qingdao 266100, China
4. College of Mechanical Engineering, Donghua University, Shanghai 201620, China)
Abstract: This article mainly explored the influence of thermal effects on the microstructure, tribological properties and
rheological properties of complex lithium base grease and grease with Zinc dialkyl dithiophospahtes (ZDDP). After the
grease samples were heated at a constant temperature of 120 ℃ and 150 ℃ for 24 hours, their appearance, infrared
spectrum, boundary lubrication performances, elastohydrodynamic lubrication performances and rheological properties
were tested. The research results revealed that the thermal effect of 120 ℃ had slight effect on the overall performance
of lithium complex grease. However, the soap fibers of base grease and grease with ZDDP became looser and showed
some breakdown, and the gelling network were also severely damaged after heated at 150 ℃. In addition, the structural
strength and thixotropy of the grease also became worse. The thermal effect at higher temperature caused more serious
Received 11 September 2020, revised 9 November 2020, accepted 10 November 2020, available online 28 July 2021.
*Corresponding author. E-mail: liwm@licp.cas.cn, Tel: +86-931-4968064; E-mail: jingwang@dhu.edu.cn.
The project was supported by the Natural Science Foundation of China (51975560), the National Key Research and Development
Program of China (2018YFB2000600) and the Project to Strengthen Industrial Development at the Grass-roots Level
(TC190A4DA/35).
国家自然科学基金项目(51975560)，国家重点研发项目(2018YFB2000600)和工业强基工程项目(TC190A4DA/35)资助.
