Enhancement in tribological performance of plastic oil by solid lubricant additives

IF 1.8 4区工程技术 Q3 ENGINEERING, CHEMICAL

Lubrication Science Pub Date : 2023-04-24 DOI:10.1002/ls.1647

Soumya Sikdar, Md Hafizur Rahman, Alessandro M. Ralls, Pradeep L. Menezes

引用次数: 1

Abstract

In this study, plastic oil (PO) as a potential lubricant was investigated. The base PO was incorporated with graphene nanoplatelets (GNP) and hexagonal boron nitride (hBN) nano additives in varying concentrations to form nano lubricants. Their viscosity, tribological, acidic/basic nature, thermal degradation and dispersion stability properties were investigated. It was observed that 1.5 wt% GNP and 1.0 wt% hBN added separately to the base PO, provided the lowest coefficient of friction (COF) and wear volume. Based on these lowest COF and wear volume insights, three nano lubricant mixtures were formulated by incorporating both GNP and hBN at different combinations using base PO. Positive synergistic behaviour was observed for COF (49%–60% reduced) and wear volume (90%–97% reduced) for two combination mixtures compared to the base PO. These improvements in the mixture were due to the polishing, mending mechanisms and tribofilm that protected the interacting surfaces.

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固体润滑剂添加剂对塑料润滑油摩擦学性能的提高

在本研究中，研究了塑料油（PO）作为一种潜在的润滑剂。将基体PO与不同浓度的石墨烯纳米片（GNP）和六方氮化硼（hBN）纳米添加剂掺入，形成纳米润滑剂。研究了它们的粘度、摩擦学性能、酸碱性、热降解性能和分散稳定性。据观察，1.5 国民生产总值的wt%和1.0 单独添加到基础PO中的wt%hBN提供了最低的摩擦系数（COF）和磨损体积。基于这些最低的COF和磨损量见解，通过使用基本PO以不同的组合掺入GNP和hBN，配制了三种纳米润滑剂混合物。与基础PO相比，两种组合混合物的COF（减少49%–60%）和磨损量（减少90%–97%）具有正协同行为。混合物的这些改进是由于抛光、修补机制和保护相互作用表面的摩擦膜。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Lubrication Science ENGINEERING, CHEMICAL-ENGINEERING, MECHANICAL

CiteScore

3.60

自引率

10.50%

发文量

审稿时长

6.8 months

期刊介绍： Lubrication Science is devoted to high-quality research which notably advances fundamental and applied aspects of the science and technology related to lubrication. It publishes research articles, short communications and reviews which demonstrate novelty and cutting edge science in the field, aiming to become a key specialised venue for communicating advances in lubrication research and development. Lubrication is a diverse discipline ranging from lubrication concepts in industrial and automotive engineering, solid-state and gas lubrication, micro & nanolubrication phenomena, to lubrication in biological systems. To investigate these areas the scope of the journal encourages fundamental and application-based studies on: Synthesis, chemistry and the broader development of high-performing and environmentally adapted lubricants and additives. State of the art analytical tools and characterisation of lubricants, lubricated surfaces and interfaces. Solid lubricants, self-lubricating coatings and composites, lubricating nanoparticles. Gas lubrication. Extreme-conditions lubrication. Green-lubrication technology and lubricants. Tribochemistry and tribocorrosion of environment- and lubricant-interface interactions. Modelling of lubrication mechanisms and interface phenomena on different scales: from atomic and molecular to mezzo and structural. Modelling hydrodynamic and thin film lubrication. All lubrication related aspects of nanotribology. Surface-lubricant interface interactions and phenomena: wetting, adhesion and adsorption. Bio-lubrication, bio-lubricants and lubricated biological systems. Other novel and cutting-edge aspects of lubrication in all lubrication regimes.