Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite
Polytetrafluoroethylene (PTFE)/aramid fabric composites are currently widely used as self-lubricating bearing liners. In this study, a PTFE composite coating was performed to improve the friction stability of the PTFE/aramid fabric composite in long-term friction. Effects of the surface modification...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac587a |
| _version_ | 1797746582145204224 |
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| author | Juan Wang Xiongrong Huang Wei Wang Haosheng Han Hongyu Duan Senlong Yu Meifang Zhu |
| author_facet | Juan Wang Xiongrong Huang Wei Wang Haosheng Han Hongyu Duan Senlong Yu Meifang Zhu |
| author_sort | Juan Wang |
| collection | DOAJ |
| description | Polytetrafluoroethylene (PTFE)/aramid fabric composites are currently widely used as self-lubricating bearing liners. In this study, a PTFE composite coating was performed to improve the friction stability of the PTFE/aramid fabric composite in long-term friction. Effects of the surface modification on the composite tribological properties were studied using ball-on-disk friction tests. Results showed that under different sliding condition, the friction coefficient of the modified and unmodified fabric composite were similar after sliding of 240 min. However, the friction coefficient curves of the unmodified fabric composite increased first, then decreased, and then increased, while that of the modified fabric composite increased first and then stabilized. At a sliding speed of 4.5 m min ^−1 and load of 50 N, the unmodified fabric composite worn out at ∼200 min, but the modified fabric composite was still stable after 240 min. SEM results confirmed that the PTFE composite coating had a good film forming property, which improved the wear resistance and friction stability of the composite in long-term friction especially under high sliding speed. These results give a reference for the development of self-lubricating plain bearing liners with long lifespans. |
| first_indexed | 2024-03-12T15:39:52Z |
| format | Article |
| id | doaj.art-1410dccfdf244ab0b6c922b4cbf73152 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:39:52Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-1410dccfdf244ab0b6c922b4cbf731522023-08-09T16:01:59ZengIOP PublishingMaterials Research Express2053-15912022-01-019505530210.1088/2053-1591/ac587aEffects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric compositeJuan Wang0https://orcid.org/0000-0001-9609-8433Xiongrong Huang1Wei Wang2Haosheng Han3Hongyu Duan4Senlong Yu5https://orcid.org/0000-0002-8471-6836Meifang Zhu6State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science & Engineering, Donghua University , Shanghai 201620, People’s Republic of ChinaShanghai Bearing Technology Research Institute, Shanghai 201801, People’s Republic of ChinaShanghai Bearing Technology Research Institute, Shanghai 201801, People’s Republic of ChinaShanghai Bearing Technology Research Institute, Shanghai 201801, People’s Republic of ChinaShanghai Bearing Technology Research Institute, Shanghai 201801, People’s Republic of ChinaState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science & Engineering, Donghua University , Shanghai 201620, People’s Republic of ChinaState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science & Engineering, Donghua University , Shanghai 201620, People’s Republic of ChinaPolytetrafluoroethylene (PTFE)/aramid fabric composites are currently widely used as self-lubricating bearing liners. In this study, a PTFE composite coating was performed to improve the friction stability of the PTFE/aramid fabric composite in long-term friction. Effects of the surface modification on the composite tribological properties were studied using ball-on-disk friction tests. Results showed that under different sliding condition, the friction coefficient of the modified and unmodified fabric composite were similar after sliding of 240 min. However, the friction coefficient curves of the unmodified fabric composite increased first, then decreased, and then increased, while that of the modified fabric composite increased first and then stabilized. At a sliding speed of 4.5 m min ^−1 and load of 50 N, the unmodified fabric composite worn out at ∼200 min, but the modified fabric composite was still stable after 240 min. SEM results confirmed that the PTFE composite coating had a good film forming property, which improved the wear resistance and friction stability of the composite in long-term friction especially under high sliding speed. These results give a reference for the development of self-lubricating plain bearing liners with long lifespans.https://doi.org/10.1088/2053-1591/ac587atextile compositessolid lubricantsurface modificationfriction and wear |
| spellingShingle | Juan Wang Xiongrong Huang Wei Wang Haosheng Han Hongyu Duan Senlong Yu Meifang Zhu Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite Materials Research Express textile composites solid lubricant surface modification friction and wear |
| title | Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite |
| title_full | Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite |
| title_fullStr | Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite |
| title_full_unstemmed | Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite |
| title_short | Effects of PTFE coating modification on tribological properties of PTFE/aramid self-lubricating fabric composite |
| title_sort | effects of ptfe coating modification on tribological properties of ptfe aramid self lubricating fabric composite |
| topic | textile composites solid lubricant surface modification friction and wear |
| url | https://doi.org/10.1088/2053-1591/ac587a |
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