Purpose

This paper aims to explore the possibility of converting the nitrile butadiene rubber (NBR) water-lubricated bearing material into a self-lubricating bearing material by the action of polytetrafluoroethylene (PTFE) particles and water lubrication.

Design/methodology/approach

A group of experimental studies was carried out on a ring-on-block friction test. The physical properties, tribological properties and interface structure of PTFE-NBR self-lubricating composites filled with different percentages of PTFE particles were investigated.

Findings

The experimental results indicated that the reduction in friction and wear is a result of the formation of the lubricating film on the surface of the composites. The lubricating film was formed of a large amount of PTFE particles continuously supplied under water lubrication conditions and the PTFE particles here can greatly enhance the load capacity and lubrication performance.

Originality/value

In this study, the tribological properties of PTFE particles added to the NBR water-lubricated bearing materials under water lubrication were investigated experimentally, and the research was carried out by a ring-on-block friction test. It is believed that this study can provide some guidance for the application of PTFE-NBR self-lubricating.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2020-0187/

中文翻译：

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PTFE-NBR自润滑复合材料在水润滑下的摩擦学和物理性能

目的

本文旨在探讨通过聚四氟乙烯（PTFE）颗粒和水润滑作用将丁腈橡胶（NBR）水润滑轴承材料转化为自润滑轴承材料的可能性。

设计/方法/方法

在闭环摩擦试验中进行了一组实验研究。研究了不同百分比的PTFE颗粒填充的PTFE-NBR自润滑复合材料的物理性能，摩擦学性能和界面结构。

发现

实验结果表明，减少摩擦和磨损是由于在复合材料表面上形成润滑膜的结果。润滑膜由在水润滑条件下连续供给的大量PTFE颗粒形成，此处的PTFE颗粒可大大提高负载能力和润滑性能。

创意/价值

在这项研究中，对在水润滑条件下添加到NBR水润滑轴承材料中的PTFE颗粒的摩擦学性能进行了实验研究，并通过环对块摩擦试验进行了研究。相信这项研究可以为PTFE-NBR自润滑的应用提供一些指导。

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-05-2020-0187/