Synergistic lubricating effect for calcium phosphate modified calcium sulfonate grease with highly load bearing capacity

被引：0
|
作者：
Sun, Longqi [1 ,2 ]
Zhao, Qin [2 ]
Zhao, Gaiqing [2 ,3 ]
Su, Huaigang [2 ,3 ]
Lai, Bingbing [2 ,3 ]
Guo, Feng [1 ]
Wang, Xiaobo [2 ,3 ]
机构：
[1] Qingdao Univ Technol, Sch Mech & Automot Engn, Qingdao 266520, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[3] Qingdao Ctr Resource Chem & New Mat, Qingdao 266000, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2024年 / 199卷
关键词：
Calcium sulfonate grease; Complex agents; Synergistic lubricating effect; Highly load bearing capacity; TRIBOLOGICAL PERFORMANCE; FILM THICKNESS; THICKENER; ANTIWEAR; BEHAVIOR;
D O I：
10.1016/j.triboint.2024.110029
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Calcium sulfonate complex grease exhibits different lubrication mechanisms due to its different combination of calcium carbonate soap and complex agents. In an effort to explore the synergistic lubricating effect of complex agents and find breakthroughs in the performance of calcium sulfonate grease, calcium phosphate modified calcium sulfonate grease was prepared and tested compared with borates. At high loads of 600 N, the introduction of P-containing complex improved load bearing capacity of calcium sulfonate grease. The advantage it exhibited in terms of lubrication was attributed to the synergistic effect of calcium carbonate and calcium phosphate in thickener under harsh condition. The synergistic films about 30 nm depth composed of iron oxide, calcium oxide and iron phosphate played a decisive role in lubrication.
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页数：10
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