Page 121 - 《摩擦学学报》2021年第4期

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.2020196

沙水润滑下纳米改性NBR材料的摩擦学性能

1,2
1,2*
1,2
周新聪 , 杨超振 , 黄 健 , 刘学申 1,2
(1. 武汉理工大学 能源与动力工程学院，湖北 武汉 430063;
2. 武汉理工大学 国家水运安全工程技术研究中心，湖北 武汉 430063)
摘 要: 丁腈橡胶(NBR)是一种优异的水润滑减摩耐磨材料，但硬质颗粒的介入对其产生较大的材料损失. 利用硅
烷偶联剂TESPT改性纳米SiO 2 颗粒，并填充至NBR基体，获得改性纳米SiO 2 /NBR标记为NBR-1. 改性后的纳米
SiO 2 颗粒在NBR基体中均匀分散. 将纳米SiO 2 颗粒、微米SiO 2 颗粒填充至NBR基体标记为NBR-2、NBR-3作为对照
组. 三种复合材料在武汉理工大学自制的SSB-100型摩擦磨损试验机上进行沙水润滑工况下的摩擦磨损试验. 结果
表明：三种复合材料在沙水工况下摩擦系数均随载荷和转速的增加而下降. 在相同的载荷和转速条件下，NBR-1的
摩擦性能最为优异. 对比三种材料的耐沙磨损性能，沙粒对NBR表面的磨损主要为犁沟磨损，NBR-2和NBR-3材料
磨损量远远大于NBR-1，NBR-1材料更适用于含沙水区域.
关键词: 丁腈橡胶; 水润滑尾轴承; 纳米改性; 沙粒; 摩擦磨损
中图分类号: U668.1 文献标志码: A 文章编号: 1004-0595(2021)04–0564–08

Tribological Behavior of Nano-Modified NBR Materials in

Sand Water-Lubricated Conditions

1,2 1,2 1,2* 1,2
YANG Chaozhen , ZHOU Xincong , HUANG Jian , LIU Xueshen
(1. School of Energy and Power Engineering, Wuhan University of Technology, Hubei Wuhan 430063, China
2. National Engineering Research Center for Water Transportation Safety, Wuhan University of Technology, Hubei
Wuhan 430063, China)
Abstract: 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-SiO 2 particles
were modified by the silane coupling agent TESPT and filled into the NBR matrix, labeled as NBR-1. The modified
nano-SiO 2 particles were uniformly dispersed in the NBR matrix. The nano-SiO 2 particles and micron SiO 2 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.
Key words: nitrile butadiene rubber (NBR); water-lubricated stern tube bearings; nano-modification; sand; friction and
wear

Received 11 September 2020, revised 7 November 2020, accepted 8 November 2020, available online 28 July 2021.
*Corresponding author. E-mail: huangfeihong@whut.edu.cn, Tel: +86-13667162352.
The project was supported by the National Natural Science Foundation of China (51579198) and the Fundamental Research Funds
for the Central Universities (2021-IVA-004B).
国家自然科学基金项目（51579198）和中央高校基本科研业务费资助（2021-IVA-004B）资助.