Interfacial Chemical Reactions Boosting the Tribological Properties of Polytetrafluoroethylene‐Based Composites in a Strong Alkaline Medium
Source abstract
Abstract
ABSTRACT Facing the application requirements of polytetrafluoroethylene (PTFE)‐based materials in special operating situations, especially for strong alkali, a series of aluminum oxide, that is, Al 2 O 3 , microspheres filled with short carbon fibers (SCF) reinforced PTFE composites were prepared in view of the chemical reactivity of aqueous alkali and Al 2 O 3 , and tribological properties were investigated by drop‐lubricated with sodium hydroxide solution. The chemical reactions occurring at the interface were probed via analyzing the compositions and chemical structures of the tribo‐pairs. The results showed that the coefficient of friction of 5 wt% Al 2 O 3 filled with 10 wt% SCF reinforced PTFE steadily reached an ultra‐low value, that is about 0.01, and the wear rate of 20 wt% Al 2 O 3 filling composite was reduced by nearly 2 orders of magnitude. It is testified in this work that chemical and tribo‐chemical products digested into the sliding interface contribute to the outstanding performance.
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Research context
OpenAlex topics: Tribology and Wear Analysis · Polymer Nanocomposites and Properties · Material Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes School of Chemistry and Chemical Engineering, Suzhou University Suzhou China
Department of Obstetrics and Gynecology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou China
Qingdao Port Dongjiakou Ore Terminal co., Ltd Qingdao China
References (33)
Show source-provided references
1. 10.1021/acs.macromol.9b0031610.1021/acs.macromol.9b00316 ↗
2. 10.3390/coatings1011110310.3390/coatings10111103 ↗
3. 10.1016/j.compscitech.2014.08.00710.1016/j.compscitech.2014.08.007 ↗
4. 10.1007/s40544‐019‐0301‐710.1007/s40544‐019‐0301‐7 ↗
5. 10.1016/j.apsusc.2015.01.08510.1016/j.apsusc.2015.01.085 ↗
6. 10.1016/j.compscitech.2018.04.02010.1016/j.compscitech.2018.04.020 ↗
7. 10.3390/polym1607089410.3390/polym16070894 ↗
8. 10.1016/j.cpart.2007.08.00310.1016/j.cpart.2007.08.003 ↗
9. 10.1002/pc.2983310.1002/pc.29833 ↗
10. 10.1021/acs.macromol.5b0045210.1021/acs.macromol.5b00452 ↗
11. 10.3144/expresspolymlett.2021.7810.3144/expresspolymlett.2021.78 ↗
12. 10.1016/j.wear.2009.06.01510.1016/j.wear.2009.06.015 ↗
13. 10.1016/j.apsusc.2016.02.01210.1016/j.apsusc.2016.02.012 ↗
14. 10.1007/s40544‐023‐0749‐310.1007/s40544‐023‐0749‐3 ↗
15. 10.4028/www.scientific.net/AMR.510.56310.4028/www.scientific.net/AMR.510.563 ↗
16. 10.1016/S0043‐1648(00)00469‐510.1016/S0043‐1648(00)00469‐5 ↗
17. 10.1016/j.matchemphys.2009.03.00810.1016/j.matchemphys.2009.03.008 ↗
18. 10.1016/j.apsusc.2005.09.06810.1016/j.apsusc.2005.09.068 ↗
19. 10.1016/j.triboint.2020.10625410.1016/j.triboint.2020.106254 ↗
20. 10.1002/pc.2826810.1002/pc.28268 ↗
21. 10.1002/pc.2928110.1002/pc.29281 ↗
22. 10.1016/j.compscitech.2022.10944910.1016/j.compscitech.2022.109449 ↗
23. 10.1002/pc.2781510.1002/pc.27815 ↗
24. 10.1002/app.5450310.1002/app.54503 ↗
25. 10.3390/coatings1405059210.3390/coatings14050592 ↗
26. 10.1016/j.cej.2021.12989110.1016/j.cej.2021.129891 ↗
27. 10.1016/j.triboint.2020.10661110.1016/j.triboint.2020.106611 ↗
28. 10.1016/j.triboint.2022.10776210.1016/j.triboint.2022.107762 ↗
29. 10.1016/j.triboint.2023.10838710.1016/j.triboint.2023.108387 ↗
30. 10.1006/jcat.1994.120810.1006/jcat.1994.1208 ↗
31. 10.1021/j100153a04510.1021/j100153a045 ↗
32. Reactive Ability and Bond Strength Analysis on Al(OH)3 Crystals With Three Different Crystallines
33. Study on Microstructure of Multiphase Aluminum Hydroxide Transition to Boehmite Phase