ZONG Ying, JIANG Xu-feng, SUN Jing, XIAO Yun-peng
(Department of Material and Oil, Air Force Logistics College, Xuzhou 221000, China)
Abstract： This paper analyzed 11 lubricating oil 50-1-4Φ samples of different base oil content (standard oil) and 28 used oil samples by Fourier transform mid-infrared spectrometer (FTIR). First, the absorption peak of 1 465 cm-1 was selected as the characteristic peak for determining their kinematic viscosities. And then correlation of the kinematic viscosity and the absorbance at characteristic peaks of corresponding infrared spectrum of standard oil and used oil samples was analyzed, respectively, and two regression equations were proposed. Finally, the regression equation of standard oil was corrected through other 20 new oil samples. The results show that determining kinematic viscosity of new lubricating oil 50-1-4Φ and the used one by FTIR is feasible and reliable.
Key words： mid-infrared spectrum; aviation lubricating oil; kinematic viscosity
CLD number： V317.1 Document code： A
Article ID： 1674-8042(2014)03-0079-04 doi： 10.3969/j.issn.1674-8042.2014.03.015
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中红外光谱法快速测定航空润滑油50-1-4Φ的运动粘度
宗营， 姜旭峰， 孙静， 校云鹏
(空军勤务学院 航空油料物资系， 江苏 徐州 221000)
摘要:对11个不同基础油含量的 50-1-4Ф润滑油样品（标准油）和从现场采集的28个在用 50-1-4Φ 润滑油样品（在用油）进行傅立叶变换中红外光谱分析。 选择 1 465 cm-1 作为测定其运动粘度的特征峰， 分别对标准油和在用油样品的运动粘度和相应红外光谱的特征峰处的吸光度进行了相关性分析， 给出了回归方程。 用另外20个新油样品较正了标准油的回归方程。 结果表明， 利用傅立叶变换中红外光谱法测定未用及在用 50-1-4Φ 润滑油的运动粘度是可行的， 测定结果是可靠的。
关键词:中红外光谱； 航空润滑油； 运动粘度
引用格式：ZONG Ying, JIANG Xu-feng, SUN Jing, et al. Rapidly determining kinematic viscosity of aviation lubricating oil 50-1-4Φ by mid-infrared spectrometry. Journal of Measurement Science and Instrumentation, 2014, 5(3): 79-82. [doi: 10.3969/j.issn.1674-8042.2014.03.015]
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