Article
  • Effect of Contact Pressure on Reciprocating Wear Behavior of PEEK, PTFE, and UHMWPE
  • Liu Lian, Duan Haitao , Jia Dan, Tu Jiesong, Zhan Shengpeng, Li Yinhua, Luo Xiaoshuang, Zhan Wen, Xiong Wei, and Li Jian

  • State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan 430030, Hubei, China

  • 접촉 압력이 PEEK, PTFE 및 UHMWPE의 왕복 마모 거동에 미치는 영향
Abstract

Engineering plastics are macromolecular compounds composed of covalently bonded macromolecules, which have been widely used in sliding wear-resistance materials in isolation bearings. In this study, an MFT-5000 reciprocating friction testing machine was used to compare the friction and wear performance of polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), and ultra-high molecular weight polyethylene (UHMWPE) under heavy load conditions in dry friction condition. The results show that load has a significant effect on the friction coefficient, wear rate, and wear mechanism of three materials. The instant friction coefficient of PTFE fluctuates under high load, the wear rate clearly increases with the increase in load. Therefore, the application under high load conditions is limited. The wear rate of UHMWPE is the least affected by the load among the three materials. Even when the load exceeds the yield strength, the wear resistance is still good. The friction coefficient of PEEK decreases with the increase in load but maintains a high value that restricts its application in sliding friction pair materials to some degree.


load, engineering plastics, dry friction, reciprocating friction, wear


Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2018 Impact Factor : 0.500
  • Indexed in SCIE

This Article

  • 2020; 44(6): 827-834

    Published online Nov 25, 2020

  • 10.7317/pk.2020.44.6.827
  • Received on Jun 16, 2020
  • Revised on Aug 11, 2020
  • Accepted on Aug 12, 2020

Correspondence to

  • Duan Haitao and Li Jian
  • State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan 430030, Hubei, China

  • E-mail: duanhaitao2007@163.com, lijianwuhan@163.net