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Effects of attapulgite on the worn surface and fretting wear resistance property of UHMWPE composites

Zhaojie Meng (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China and Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Beijing, China)
Yunxia Wang (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China)
Xiaocui Xin (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China and Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Beijing, China)
Hao Liu (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China)
Yunfeng Yan (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China and Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Beijing, China)
Fengyuan Yan (State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 14 March 2020

Issue publication date: 14 March 2020

Abstract

Purpose

The purpose of this study is to examine the fretting wear property of ultra-high molecular weight polyethylene (UHMWPE)-based composites reinforced by different content of attapulgite.

Design/methodology/approach

A series of composites were prepared by a hot-pressing method. Fretting tests were carried out using an SRV-IV oscillating reciprocating friction wear tester with a load of 10 N and a frequency of 100 Hz. The morphology of the fracture structure and the worn surface was observed by field-emission scanning electron microscopy, X-ray diffraction and a non-contact three dimensional surface profiler.

Findings

With the addition of attapulgite, the microstructure of the composites become more regular, and their heat resistance improved. Furthermore, the friction coefficient and the specific wear rate of the composites with lower filler content reduced compared with that of neat UHMWPE, and the optimum filler content is 1 per cent.

Originality/value

The study investigated the fretting resistance mechanism of the attapulgite in the UHMWPE matrix. The results could help to provide some experimental evidence for the broader application of silicates on the fretting wear resistance of polymers.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2019-0420/

Keywords

Acknowledgements

The authors gratefully acknowledge their sincere appreciation to Aiqin Wang for generously providing attapulgite.

Citation

Meng, Z., Wang, Y., Xin, X., Liu, H., Yan, Y. and Yan, F. (2020), "Effects of attapulgite on the worn surface and fretting wear resistance property of UHMWPE composites", Industrial Lubrication and Tribology, Vol. 72 No. 7, pp. 821-827. https://doi.org/10.1108/ILT-10-2019-0420

Publisher

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Emerald Publishing Limited

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