2017
DOI: 10.1021/acs.energyfuels.6b02795
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Low-Temperature Dielectric Spectroscopy Characterization of the Oxidative Degradation of Lubricating Oil

Abstract: In this study, the two-channel and differential dielectric spectroscopy (TD-DES) technique has been applied to study different degrees of oxidative degradation for two series of simulated oxidized lubricating oils at low temperatures ranging from 20 °C to −55 °C. The deep oxidation, general oxidation, nitration, and sulfation products of the degraded lubricating oil were precisely identified by the Fourier transform infrared spectroscopy (FT-IR) and increased with the level of oxidation, which agreed well with… Show more

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Cited by 6 publications
(1 citation statement)
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“…Usually, lubricating oil works at least in the temperature range of 20–30 °C below the OIT . As shown in Figure , the OIT of pure castor oil is less than 1 min at 170 °C in the PDSC test, which means that pure soybean oil cannot work at such a high temperature and quickly undergoes oxidation deterioration.…”
Section: Resultsmentioning
confidence: 99%
“…Usually, lubricating oil works at least in the temperature range of 20–30 °C below the OIT . As shown in Figure , the OIT of pure castor oil is less than 1 min at 170 °C in the PDSC test, which means that pure soybean oil cannot work at such a high temperature and quickly undergoes oxidation deterioration.…”
Section: Resultsmentioning
confidence: 99%