《轴承》2023年 第8期
引文格式:王耀晨,王优强,赵涛,等.水润滑聚合物轴承材料改性研究进展[J].轴承,2023(8):1-8.
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水润滑聚合物轴承材料改性研究进展
(1.青岛理工大学 机械与汽车工程学院,山东 青岛 266520;2.工业流体节能与污染控制教育部重点实验室,山东 青岛 266520)
1 水润滑特性及常用聚合物轴承材料
目前常用于水润滑轴承的聚合物材料主要有橡胶和塑料,其中丁腈橡胶(NBR)、超高分子量聚乙烯(UHMWPE)、聚四氟乙烯(PTFE)、尼龙(PA66)、聚醚醚酮(PEEK)、聚酰亚胺(PI)、聚氨酯(PU)、高密度聚乙烯(HDPE)等聚合物材料常被用作轴瓦材料,其性能对比见表1。
表1 不同聚合物材料性能对比
Tab.1 Performance comparison of different polymer materials
2 聚合物轴承材料改性研究现状
2.1 改善材料力学性能
图3 功能性填料增强增韧机理示意图[50]
Fig.3 Diagram of strengthening and toughening mechanism of functional packing [50]
2.2 增强润滑效果
图4 PAAm水凝胶颗粒的摩擦剥落过程[59]
Fig.4 Friction peeling process of PAAm hydrogel particles[59]
图5 微胶囊的润滑机理示意图
Fig.5 Diagram of lubrication mechanism of microcapsules
2.3 二者协同作用
(a) 承载状态
(b) 润滑特性
(c) PAAm-GO薄片的2种状态
图6 PAAm-GO薄片的摩擦机制分析结果[69]
Fig.6 Analysis results of friction mechanism of PAAm-GO thin plate [69]
2.4 小结
3 总结与展望
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Research Progress on Material Modification of Water-Lubricated Polymer Bearings
WANG Yaochen1,WANG Youqiang1,2,ZHAO Tao1,HE Yan1
(1.School of Mechanical &Automotive Engineering, Qingdao University of Technology, Qingdao 266520,China;2.Key Lab of Industrial Fluid Energy Conservation and Pollution Control, Qingdao 266520,China)
Abstract:Water-lubricated bearings are widely used in marine propulsion systems, water turbines, water pumps and other fields due to their green, pollution-free, energy-saving and environmental protection characteristics. The performances of polymer bearing materials directly affect the stability of mechanical operation. Firstly, the characteristics of water as lubricant are introduced, and the advantages and disadvantages of commonly used polymer bearing materials are compared. Then, in response to the problems of insufficient tribological properties of polymer materials during practical use, the polymer blending methods are introduced first, and then according to different mechanisms of action, the research progress on improving tribological properties of polymer materials by modifying water lubricated polymer bearing materials is reviewed from three aspects: improving mechanical properties, enhancing lubrication effects and synergistic effects of the two. Finally, the future key research directions are prospected for material modification of water lubricated polymer bearings.
Key words:plain bearing; water lubrication; polymer; modification; mechanical property
收稿日期:2022-06-30;修回日期:2023-02-23
基金项目:国家自然科学基金资助项目(51575289);山东省自然科学基金资助项目(ZR2021ME063)
作者简介:王耀晨(1995—),男,硕士研究生,研究方向为水润滑聚合物轴承材料改性,E-mail:781321127@qq.com。
通信作者:王优强(1970—),男,教授,博导,研究方向为摩擦学与表面工程,E-mail:wyq1970301@126.com。
中图分类号:TH133.31;TH117
文献标志码:B
DOI:10.19533/j.issn1000-3762.2023.08.001
(编辑:毛雨欣)