Effect of Temperature on the Chemical Composition and Physicochemical Properties of Diester Aviation Lubrication Oil
Joint Authors
Hu, Jianqiang
Zhang, Na
Yao, Ting
Liao, Xiaoxiao
Shen, Yongli
Gan, Zhuoting
Source
International Journal of Chemical Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-04
Country of Publication
Egypt
No. of Pages
15
Abstract EN
High temperature is the main factor responsible for degrading the lubrication and antiwear properties of aero-lubricating oils.
Accordingly, this study assessed the effects of thermal treatment of diester aviation lubricating oil and the associated mechanism.
Fourier-transform infrared spectroscopy and gas chromatography/mass spectrometry analyses showed that low-molecular-weight compounds, such as monoesters, diesters, alcohols, and olefins, were the primary degradation products.
An assessment of the degradation mechanism of bis(2-ethylhexyl)decanedioate showed that pyrolysis, resulting in the cleavage of β-C–H and C–C bonds, was the main process involved.
Additional investigation using advanced polymer chromatography showed that the molecular weights of oil samples changed slightly at high temperatures, while the viscosity and viscosity-temperature index values were relatively stable.
High-pressure differential scanning calorimetry established that the thermal oxidation stability of these oils decreased above 250°C.
Finally, variations in the chemical compositions of the oil samples were found to be highly correlated with changes in physicochemical properties during thermal processing, with the formation of low-molecular-weight polar compounds greatly increasing the acid numbers of the oils.
American Psychological Association (APA)
Yao, Ting& Zhang, Na& Hu, Jianqiang& Liao, Xiaoxiao& Shen, Yongli& Gan, Zhuoting. 2020. Effect of Temperature on the Chemical Composition and Physicochemical Properties of Diester Aviation Lubrication Oil. International Journal of Chemical Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1169408
Modern Language Association (MLA)
Yao, Ting…[et al.]. Effect of Temperature on the Chemical Composition and Physicochemical Properties of Diester Aviation Lubrication Oil. International Journal of Chemical Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1169408
American Medical Association (AMA)
Yao, Ting& Zhang, Na& Hu, Jianqiang& Liao, Xiaoxiao& Shen, Yongli& Gan, Zhuoting. Effect of Temperature on the Chemical Composition and Physicochemical Properties of Diester Aviation Lubrication Oil. International Journal of Chemical Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1169408
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169408