Purpose

The purpose of this paper is to study the antifriction, antiwear and tribolayer formation properties of the trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate ionic liquid (IL) as additive at 1 wt.% in two base oils and their mixtures, comparing the results with those of a commercial oil.

Design/methodology/approach

The mixture of the base oils used in the formulation of the commercial oil SAE 0W20 plus the IL was tested under rolling/sliding and reciprocating conditions to determine the so-called Stribeck curve, the tribolayer formation and the antifriction and antiwear behaviors.

Findings

The use of this IL as additive in these oils does not change their viscosity; improves the antifriction and antiwear properties of the base oils, making equal or outperforming these properties of the SAE 0W20; and the thickness and formation rate of the tribolayer resulting from the IL-surface interaction is highly dependent on the type of base oil and influence on the friction and wear results.

Originality/value

The use of this IL allows to replace partial or totally commercial antifriction and antiwear additives.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2020-0179/

中文翻译：

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与市售油相比，添加了磷鎓离子液体的油的摩擦学行为

目的

本文的目的是研究在两种基础油及其混合物中以1 wt。％的比例添加双（2,4,4-三甲基戊基）次膦酸三己基十四烷基膦酸酯离子液体（IL）的减摩，抗磨损和摩擦层形成特性，将结果与商品油的结果进行比较。

设计/方法/方法

在滚动/滑动和往复条件下测试用于商业油SAE 0W20的配方中所用基础油的混合物，以确定其所谓的Stribeck曲线，摩擦层的形成以及减摩和抗磨性能。

发现

在这些油中使用这种IL作为添加剂不会改变其粘度。改善基础油的减摩和抗磨性能，使其达到或优于SAE 0W20的这些性能；IL表面相互作用产生的摩擦层的厚度和形成速率在很大程度上取决于基础油的类型以及对摩擦和磨损结果的影响。

创意/价值

使用该IL可以代替部分或全部商业减摩和抗磨添加剂。

同行评审

本文的同行评审历史记录可在以下网址获得：https://publons.com/publon/10.1108/ILT-05-2020-0179/