Double hybrid lubricant additives consisting of a phosphonium ionic liquid and graphene nanoplatelets/hexagonal boron nitride nanoparticles

被引：45
作者：
Nasser, Khodor I. [1 ]
del Rio, Jose M. Lineira [1 ]
Marino, Fatima [1 ]
Lopez, Enriqueta R. [1 ]
Fernandez, Josefa [1 ]
机构：
[1] Univ Santiago de Compostela, Fac Fis, Dept Fis Aplicada, Lab Propiedades Termofis & Tribol,Grp Nafomat, Santiago De Compostela 15782, Spain
来源：
TRIBOLOGY INTERNATIONAL | 2021年 / 163卷
关键词：
Lubricant additive; Nanomaterials; Ionic liquids; Hybrid additives; GLOBAL ENERGY-CONSUMPTION; TRIBOLOGICAL PROPERTIES; NEAT LUBRICANTS; FRICTION;
D O I：
10.1016/j.triboint.2021.107189
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Tribological performance of polyalphaolefin 32, PAO, is investigated by adding two nanomaterials (graphene nanoplatelets, GnP, and hexagonal boron nitride nanoparticles, h-BN) and an ionic liquid ([P-6,P-6,P-6,P-14] [DEHP], IL1,[P-2,P-4,P-4,P-4] [DEP], IL2, or [P-6,P-6,P-6,P-14][(iC8)(2)PO2], IL3). Designed double hybrid nanodispersions are PAO/1 wt% ILX/0.05 wt% GnP/0.1 wt% h-BN (X = 1, 2 or 3). The best anti-friction behavior corresponds to PAO/IL3/GnP/h-BN (40% reduction compared to that achieved with PAO). Anti-wear behavior is similar for the three double hybrid nanodispersions. Roughness of the worn surface tested with PAO is higher than that obtained for each of the nanodispersions. Tribo-film formation and repair effect on worn surfaces due to ILs and nanoparticles are revealed. Some positive synergies were found between each IL and GnP/h-BN as hybrid PAO additives.
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页数：10
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