1. Effects of soft chain materials on the tribological performances of thermosetting polyurethane under water-lubrication.
- Author
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Xu, Qiran, Guo, Zhiwei, Huang, Qiren, and Yuan, Chengqing
- Subjects
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POLYURETHANE elastomers , *POLYURETHANES , *WEAR resistance , *PROPYLENE glycols , *POLYOLS , *LUBRICATION & lubricants - Abstract
Polyurethane elastomers are widely used as functional alternative materials in water-lubricated bearing materials. In this study, three kinds of polyurethane elastomers with different soft chains were prepared to investigate the influence of soft chain materials on their tribological properties. The test results show that the specimen with soft chain polyols as propylene glycol has the best wear resistance, and the friction coefficient is only 0.09 at 0.7 MPa. Due to the excellent buried property, the wear debris can be discharged in time, so the surface of the test specimen is relatively flat, which is conducive to the formation of lubricating water film. This study provides the experimental basis for polyurethane as an alternative material for water-lubricated bearings. • Polyurethane elastomers with different soft chain were designed and prepared. • The samples of different soft chain materials were compared and analyzed. • The influence mechanism of soft chain on PU wear resistance was revealed. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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