Rheological behaviors and tribological properties of nano-silica grease: A study compared with lithium grease and polyurea grease

被引：21
作者：
Liu, Huanchen [1 ,2 ]
Wang, Xiaoyu [1 ,3 ]
Su, Huaigang [1 ,4 ]
Wang, Xiaobo [1 ,4 ]
Zhang, Shengmao [2 ]
Lou, Wenjing [1 ,4 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Henan Univ, Engn Res Ctr Nanomat, Kaifeng 475004, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Qingdao Ctr Resource Chem & New Mat, Qingdao Key Lab Lubricat Technol Adv Equipment, Qingdao 266100, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2023年 / 186卷
关键词：
Nano-silica grease; Thickener; Rheological behaviors; Tribological properties; LUBRICATING GREASE; IONIC LIQUIDS; NANOPARTICLES; PERFORMANCES; ADDITIVES; THICKENER; SULFONATE; FRICTION;
D O I：
10.1016/j.triboint.2023.108657
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Traditional greases gradually cannot meet the performance requirements of high efficiency lubrication, and new nano-thickener greases are expected to be a promising lubricant. This work prepared nano-silica grease (NSG) with a stable structure using nano-silica as the thickener. The physicochemical properties, rheological behaviors and tribological properties of the grease were analyzed, and the results were compared with those of lithium grease (LG) and polyurea grease (PG) commonly used in the market. The results show that NSG has a short chain agglomeration microstructure that can quickly respond to the external environment through structural adjust-ment. Compared with LG and PG, NSG has the better rheological and tribological properties. These findings will help promote the development and application of new nano-thickener greases.
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页数：13
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