Imidazolium ionic liquids as additives of the synthetic ester propylene glycol dioleate in aluminium-steel lubrication
Imidazolium ionic liquids as additives of the synthetic ester propylene glycol dioleate in aluminium-steel lubrication
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DOI：
10.1016/j.wear.2008.01.009
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发表时间：
2008-08-25
期刊：
影响因子：
5
通讯作者：
Bermudez, Maria-Dolores
中科院分区：
文献类型：
--
作者：
Jimenez, Ana-Eva;Bermudez, Maria-Dolores
四种室温离子液体（ILs）： 1-CnH2n+1-3- ch3 -咪唑X- [X=PF6；n = 6 (L-P106)。X = BF4;n=2 (L102), 6 （L106）。X = cf3so3；n = 2 (L-T102)]，作为1 wt.%的合成酯二油酸丙二醇酯（PGDO）添加剂，在25℃和100℃的AISI 52100钢- astm 2011铝触点销盘试验中进行了研究。在室温下，PGDO + 1 wt.% IL的摩擦值与基础油相似或更高，只有极性更强的添加剂L102和L-T102才能降低磨损率。在100摄氏度时，所有的添加剂都能减少摩擦和磨损，而不是基础油。从润滑油的分子结构和性能方面对研究结果进行了讨论。利用能量色散能谱（EDS）和x射线光电子能谱（XPS）研究了磨损机理和表面相互作用。(C) 2008 Elsevier B.V.版权所有
Four room-temperature ionic liquids (ILs), 1-CnH2n+1-3-CH3-imidazolium X- [X=PF6; n=6 (L-P106). X=BF4; n=2 (L102), 6 (L106). X = CF3 SO3; n = 2 (L-T102)], have been studied as 1 wt.% additives of the synthetic ester propylene glycol dioleate (PGDO) in pin-on-disk tests for AISI 52100 steel-ASTM 2011 aluminium contacts at 25 and 100 degrees C. At room temperature, friction values for PGDO + 1 wt.% IL are similar or higher than that of the base oil, and only the more polar additives L102 and L-T102 reduce wear rates. At 100 degrees C, all additives reduce both friction and wear with respect to the base oil. The results are discussed in terms of the molecular structure and properties of the lubricants. Wear mechanisms and surface interactions have been studied by energy dispersive (EDS) and X-ray photoelectron (XPS) spectroscopies. (C) 2008 Elsevier B.V. All rights reserved.