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Tribological properties of organotin compound modified UHMWPE

  • Tian Yang , Haiping Xu , Yongliang Jin , Ke Huang , Jiesong Tu , Dan Jia , Shengpeng Zhan , Lixin Ma and Haitao Duan EMAIL logo
Published/Copyright: August 12, 2021
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Abstract

A range of ultra-high molecular weight polyethylene (UHMWPE)/tetraphenyltin (Ph4Sn) nanocomposites were fabricated by hot-pressing. The surface hardness and crystallinity of composites were studied. It revealed that the surface hardness of the composites decreased slightly, and the changing trend of crystallinity was consistent with the hardness. The tribological properties of composites under seawater lubricating conditions were investigated. The experimental results showed that the friction coefficients of the composites almost keep the same but the wear reduced sharply. With the increases of Ph4Sn content, the wear of composites first decreases significantly and then increases, meanwhile the friction coefficient remains basically unchanged. The dominant wear mechanism has changed from adhesive wear to plastic deformation and finally to abrasive wear. The addition of Ph4Sn particles reduces the sensitivity of the Ph4Sn/UHMWPE composites to water and transfers the load to the UHMWPE network, resulting in the wear resistance improved.


Corresponding author: Haitao Duan, State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan, Hubei, 430030, China, E-mail:

Award Identifier / Grant number: 2018YFB0703801

Award Identifier / Grant number: 2017AAA119

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This study was funded by the National Key Research and Development Program of China (grant no. 2018YFB0703801) and the Major Technology Innovation of Hubei Province (grant no. 2017AAA119).

  3. Conflict of interest statement: The authors declare that they have no conflicts of interest regarding this article.

  4. Data availability: All data generated or analyzed during this study are included in this article.

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Received: 2021-03-03
Accepted: 2021-07-11
Published Online: 2021-08-12
Published in Print: 2021-10-26

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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