"Elastohydrodynamic lubrication properties and friction behaviors of se" by Yifeng HE, Thomas J. ZOLPER et al.

Article Title

Elastohydrodynamic lubrication properties and friction behaviors of several ester base stocks

Authors

Yifeng HE, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA
Thomas J. ZOLPER, Department of Mechanical Engineering, University of Wisconsin, Platteville WI 53818, USA
Pinzhi LIU, Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA
Yuzhen ZHAO, Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA Chongqing Branch of Lubricant Company, SINOPEC, Chongqing 400039, China
Xingliang HE, Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA
Xuejin SHEN, Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Hongwei SUN, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
Qinghua DUAN, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
Qian WANG, Department of Mechanical Engineering, Northwestern University, Evanston IL 60208, USA

Keywords

ester, viscosity, elastohydrodynamic lubrication, friction, synthetic base stocks

Abstract

This paper reports a series of studies on the lubricant properties, elastohydrodynamic film thickness, and coefficients of friction of several commercially available ester base stocks, i.e., diisooctyl phthalate (DIOP), diisodecyl phthalate (DIDP), diisotridecyl phthalate (DITDP), diisooctyl sebacate (DOS), diisotridecyl sebacate (DTDS), trihydroxymethylpropyl trioleate (TMPTO), and pentaerythritol tetraoleate (PETO). The results include densities and viscosities from 303 to 398 K, and elastohydrodynamic lubricant film thicknesses and friction in the boundary, mixed and full-film lubrication regimes measured at several temperatures, loads, and speeds. These ester base stocks have different lubrication abilities owing to their chain lengths, geometric configurations, and molecular rigidity. This study provides quantitative insight into the use of ester-based lubricants for low friction through the entire lubrication regime (boundary to full film) by utilization of suitable type and size of the ester base stocks.

DOI

https://doi.org/10.1007/s40544-015-0090-6

Publisher

Tsinghua University Press

Recommended Citation

Yifeng HE, Thomas J. ZOLPER, Pinzhi LIU et al. Elastohydrodynamic lubrication properties and friction behaviors of several ester base stocks. Friction 2015, 3(3): 243-255.

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