Tribological Behavior of Nano-Modified NBR Materials in Sand Water-Lubricated Conditions

被引：0
作者：
Yang C. [1 ,2 ]
Zhou X. [1 ,2 ]
Huang J. [1 ,2 ]
Liu X. [1 ,2 ]
机构：
[1] School of Energy and Power Engineering, Wuhan University of Technology, Wuhan
[2] National Engineering Research Center for Water Transportation Safety, Wuhan University of Technology, Wuhan
来源：
Mocaxue Xuebao/Tribology | 2021年 / 41卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Friction and wear; Nano-modification; Nitrile butadiene rubber (NBR); Sand; Water-lubricated stern tube bearings;
D O I：
10.16078/j.tribology.2020196
中图分类号：
学科分类号：
摘要：
Nitrile butadiene rubber (NBR) is widely used in water-lubricated material because of its excellent anti-friction and wear-resistant performance. NBR is severely worn in water containing sand particles. Nano-SiO2 particles were modified by the silane coupling agent TESPT and filled into the NBR matrix, labeled as NBR-1. The modified nano-SiO2 particles were uniformly dispersed in the NBR matrix. The nano-SiO2 particles and micron SiO2 particles were filled into the NBR matrix, labeled NBR-2 and NBR-3 as the control group. The three composite materials were subjected to friction and wear tests under sand water-lubricated conditions on the SSB-100 tribo-tester made by Wuhan University of Technology. The results showed that the friction coefficient of the three composite materials decreased as the load and sliding velocity increased under sand water-lubricated conditions. NBR-1 had the best friction performance under the same working conditions. Comparing to the sand water-lubricated wear of the three materials, the wear of composite materials was mainly furrow wear. The material loss of NBR-2 and NBR-3 was much greater than that of NBR-1, and NBR-1 material was more suitable for sandy water areas. © 2021, Science Press. All right reserved.
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页码：564 / 571
页数：7
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