Protic ammonium bio-based ionic liquid crystal lubricants

被引：17

作者：

Aviles, M. D. ^{[1
]}

Pamies, R. ^{[1
]}

Sanes, J. ^{[1
]}

Arias-Pardilla, J. ^{[1
]}

Carrion, F. J. ^{[1
]}

Bermudez, M. D. ^{[1
]}

机构：

[1] Univ Politecn Cartagena, Grp Ciencia Mat & Ingn Met, Campus Muralla Mar, Cartagena 30202, Spain

来源：

TRIBOLOGY INTERNATIONAL | 2021年 / 158卷

关键词：

Protic ionic liquid; Ionic liquid crystal; Lubrication; Friction; Wear; ADDITIVES; FRICTION;

D O I：

10.1016/j.triboint.2021.106917

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Bis(2-hydroxyethyl) ammonium stearate (DES) protic ionic liquid crystal (PILC) has been added in 1 wt% and 2 wt% proportion to di-bis(2-hydroxyethyl) ammonium succinate (DSU) protic ionic liquid (PIL) to obtain (DSU+1%DES) and (DSU+2%DES) lubricant blends. The new blends are non-Newtonian fluids with liquid crystalline domains. Addition of (DES) PILC to (DSU) PIL reduces running-in friction coefficient in more than 70% and prevents surface damage, decreasing wear rate in more than one order of magnitude. Optical profil-ometry, optical and scanning electron microscopy (SEM), energy dispersive (EDX) and X-ray photoelectron spectroscopy (XPS) have been used to analyze surfaces after the tribological tests.

引用

页数：9

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