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Highly dispersed dialkyl dithiophosphate-functionalized ZIF-8 particles as additives of the lubricating oil.
- Source :
-
Industrial Lubrication & Tribology . 2022, Vol. 74 Issue 5, p531-541. 11p. - Publication Year :
- 2022
-
Abstract
- Purpose: This paper aims to propose a new strategy to functionalize zeolitic imidazolate frameworks (ZIF-8) to improve its dispersion stability and tribological properties in lubricating oil. Design/methodology/approach: Dialkyl dithiophosphate polydopamine ZIF-8 (DDP@PDA@ZIF-8) was prepared via mussel-inspired chemistry and the Michael addition reaction. The tribological properties of DDP@PDA@ZIF-8 as an additive in the white oil were evaluated with four-ball friction and wear tester at different temperatures. The worn surface was analyzed using X-ray photoelectron spectrum (XPS). Findings: The as-prepared DDP@PDA@ZIF-8 shows high dispersion stability in the white oil. Tribological results confirmed that the DDP@PDA@ZIF-8 exhibited a small wear scar diameter at 25°C. However, excellent friction reduction and anti-wear properties were observed at 75°C. The XPS result indicates that a series of tribochemical reactions occurred on the worn surface, forming the complex protective film. Originality/value: This paper provides a study of highly dispersed ZIF-8 as lubrication additives. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00368792
- Volume :
- 74
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Industrial Lubrication & Tribology
- Publication Type :
- Academic Journal
- Accession number :
- 157100475
- Full Text :
- https://doi.org/10.1108/ILT-10-2021-0417