Tribological properties of polyimide-modified UHMWPE for bushing materials of seawater lubricated sliding bearings

Song Chen; Jian Li; Lei Wei; Yongliang Jin; Hongfei Shang; Meng Hua; Haitao Duan

doi:10.1016/j.triboint.2017.06.011

Author(s)

Song Chen
Jian Li
Lei Wei
Yongliang Jin
Hongfei Shang
Haitao Duan

Related Research Unit(s)

Department of Mechanical and Biomedical Engineering

Detail(s)

Original language	English
Pages (from-to)	470-476
Journal / Publication	Tribology International
Volume	115
Online published	10 Jun 2017
Publication status	Published - 1 Nov 2017

Link(s)

DOI	DOI https://doi.org/10.1016/j.triboint.2017.06.011 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85021148733&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(693bc1cd-a99f-46fd-854b-97e30e22891a).html

Abstract

Experiments of polyimide/UHMWPE composites sliding against tin-bronze counterfaces under seawater condition have been conducted with a pin-on-disk configuration in this study, aiming at developing matched materials for the bushing of seawater lubricated bearing. As the results, the friction efficient of composite/bronze sliding pairs decreases with the increase in polyimide proportion; however, the wear rate and optimum surface roughness of polyimide/UHMWPE composites firstly decrease and then increase. Mesoscale simulation results show that phase segregation has important effects on wear mechanism. The composite with 50 wt.% polyimide has the lowest wear rate and optimum surface roughness.