Improved Wear Resistance and Environmental Adaptability of a Polysiloxane/Molybdenum Disulfide Composite Lubricating Coating Using Polyhedral Oligomeric Silsesquioxane
Source abstract
Abstract
Polysiloxane/molybdenum disulfide (MoS2) composite lubricating coatings that are used in low-earth orbit spacecraft have high resistance to atomic oxygen attack and outstanding vacuum tribological properties. However, their atmospheric environment wear resistance and adaptability under high humidity are poor. In this paper, octa-aminophenyl T8-polyhedral oligomeric silsesquioxane (NH2-POSS) was used to enhance their atmospheric wear resistance and environmental adaptability to increase the protection of polysiloxane lubricating coatings for spacecraft. In this study, the effect of NH2-POSS on the mechanical properties of a polysiloxane coating and the tribological properties of the POSS-enhanced polysiloxane/MoS2 lubricating coating were investigated and the mechanism of NH2-POSS enhancement was discussed. Results showed that the addition of NH2-POSS markedly improved the hardness and elastic modulus of the polysiloxane coatings by increasing the crosslink density of the polysiloxanes and nanofiller effect of POSS. Among them, 6 wt% NH2-POSS can reduce the wear rate of the lubricating coating by 25%. In addition, this study also explores the adaptability of polysiloxane/MoS2 lubricating coatings in a high-humidity environment and an atomic oxygen irradiation environment, which provides a reference for further optimization of polysiloxane lubricating coatings.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Silicone and Siloxane Chemistry · Metal and Thin Film Mechanics · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Science, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
Shanghai Aerospace Equipment Manufacture, Shanghai 200245, PR China
Funding
National Natural Science Foundation of China
References (47)
Show source-provided references
1. 10.1002/app.4873010.1002/app.48730 ↗
2. 10.1016/j.pmatsci.2017.02.00110.1016/j.pmatsci.2017.02.001 ↗
3. 10.1016/j.carbon.2016.12.04410.1016/j.carbon.2016.12.044 ↗
4. 10.1016/j.triboint.2016.05.00210.1016/j.triboint.2016.05.002 ↗
5. 10.1002/ls.139010.1002/ls.1390 ↗
6. 10.1021/am100201k10.1021/am100201k ↗
7. 10.1007/BF0035439010.1007/BF00354390 ↗
8. 10.1021/acs.jpcc.9b0373910.1021/acs.jpcc.9b03739 ↗
9. 10.1134/S001814391603014010.1134/S0018143916030140 ↗
10. 10.1016/j.triboint.2012.10.01610.1016/j.triboint.2012.10.016 ↗
11. NASA Technical Reports Server. NASA/SDIO Space Environmental Effects on Materials Workshop. https://ntrs.nasa.gov/citations/19890014157; 1989 ]
12. Lorenz G. · 2014 · 55510.1016/B978-1-4557-3107-7.00014-2 ↗
13. Whitaker, A.; Little, S.; Harwell, R.; Griner, D.; Dehaye, R.; Fromhold, A., Jr. Orbital Atomic Oxygen Effects on Thermal Control and Optical Materials - STS-8 results; AIAA 23rd Aerospace Science Meeting, Reno, Nevada; 1985.10.2514/6.1985-416 ↗
14. 10.1021/am201509n10.1021/am201509n ↗
15. 10.1016/j.triboint.2021.10713510.1016/j.triboint.2021.107135 ↗
16. 10.1016/j.apsusc.2016.04.07810.1016/j.apsusc.2016.04.078 ↗
17. 10.1016/j.ijmecsci.2017.06.01610.1016/j.ijmecsci.2017.06.016 ↗
18. 10.1016/j.porgcoat.2018.04.03510.1016/j.porgcoat.2018.04.035 ↗
19. 10.1016/j.ijmecsci.2019.03.03610.1016/j.ijmecsci.2019.03.036 ↗
20. 10.1016/j.ijmecsci.2020.10569910.1016/j.ijmecsci.2020.105699 ↗
21. 10.1016/j.triboint.2018.01.06810.1016/j.triboint.2018.01.068 ↗
22. 10.1016/j.apsusc.2019.03.19210.1016/j.apsusc.2019.03.192 ↗
23. 10.1016/j.polymertesting.2021.10710010.1016/j.polymertesting.2021.107100 ↗
24. 10.1016/j.corsci.2015.11.03310.1016/j.corsci.2015.11.033 ↗
25. 10.1016/j.corsci.2015.10.03910.1016/j.corsci.2015.10.039 ↗
26. 10.1016/j.cej.2017.10.17210.1016/j.cej.2017.10.172 ↗
27. 10.1016/j.porgcoat.2009.02.00710.1016/j.porgcoat.2009.02.007 ↗
28. 10.1016/j.corsci.2014.11.04610.1016/j.corsci.2014.11.046 ↗
29. 10.1016/j.apmt.2019.10054210.1016/j.apmt.2019.100542 ↗
30. 10.1021/acsomega.0c0308510.1021/acsomega.0c03085 ↗
31. 10.1016/j.polymer.2013.03.06110.1016/j.polymer.2013.03.061 ↗
32. 10.1021/cr00037a01210.1021/cr00037a012 ↗
33. 10.1016/j.polymer.2017.04.00710.1016/j.polymer.2017.04.007 ↗
34. 10.1021/acs.jpcc.5b0886810.1021/acs.jpcc.5b08868 ↗
35. 10.1021/acs.iecr.9b0243910.1021/acs.iecr.9b02439 ↗
36. 10.1016/j.porgcoat.2020.10566710.1016/j.porgcoat.2020.105667 ↗
37. 10.1016/j.progpolymsci.2021.10141910.1016/j.progpolymsci.2021.101419 ↗
38. 10.1016/j.apsusc.2004.12.01310.1016/j.apsusc.2004.12.013 ↗
39. Feng S. Y. · 2004 · 420
40. Marsmann H. · 1981 · 97
41. 10.1016/j.porgcoat.2018.11.03210.1016/j.porgcoat.2018.11.032 ↗
42. 10.1021/acs.jpcc.0c0631510.1021/acs.jpcc.0c06315 ↗
43. 10.1016/j.apsusc.2020.14797410.1016/j.apsusc.2020.147974 ↗
44. 10.1016/j.cej.2021.13005010.1016/j.cej.2021.130050 ↗
45. 10.1016/j.compositesb.2021.10958110.1016/j.compositesb.2021.109581 ↗
46. 10.1016/0043-1648(69)90430-X10.1016/0043-1648(69)90430-X ↗
47. Zhang H. · Text Sci. Res. · 1988 · 3 · 18