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Elastohydrodynamic lubrication properties and friction behaviors of several ester base stocks

查看全文 作　　者：Yifeng [1,2]HE;Thomas [3]J.ZOLPER;Pinzhi [2]LIU;Yuzhen [2,4]ZHAO;Xingliang [2]HE;Xuejin [2,5]SHEN;Hongwei [1]SUN;Qinghua [1]DUAN;Qian [2]WANG 高影响力作者 机构地区：[1]Research Institute of Petroleum Processing,SINOPEC,Beijing 100083,China;[2]Department of Mechanical Engineering,Northwestern University,Evanston IL 60208,USA;[3]Department of Mechanical Engineering,University of Wisconsin,Platteville WI 53818,USA;[4]Chongqing Branch of Lubricant Company,SINOPEC,Chongqing 400039,China;[5]School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200072,China高影响力机构 出　　处：《Friction》索引2015年第3卷第3期,共13页高影响力期刊 基　　金：The Northwestern authors would also like to acknowledge the support from US Department of Energy(DE-EE0006449). 摘　　要：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. 关 键 词：ESTER VISCOSITY elastohydrodynamic lubrication FRICTION synthetic base stocks
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