Article
  • Influence of Water Absorption Behavior on Mechanical and Tribological Performance of Polymer Materials

  • Shengpeng Zhan*, **, Ruize Li*, **, Tian Yang*, **, Dan Jia*, **, Jiesong Tu*, **, lixin Ma*, **, Bingxue Cheng***, and Haitao Duan*, **,† 

  • *State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan 430030, Hubei, China
    **Hubei Longzhong Laboratory, Xiangyang 441000, Hubei, China
    ***State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China

  • 물 흡수에 따른 다양한 고분자 재료의 기계적/트라이볼로지적 물성 연구

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

The physical, chemical and mechanical properties of polymer materials used in water environment for a long time will change due to their water absorption characteristics, which will affect their tribological properties. This work studied the changes of physicochemical, mechanical, and tribological properties for five kinds of polymer materials (polyethylene, polyformaldehyde,polyamide, polytetrafluoroethylene, and poly-ether-etherketone) before and after water absorption. The mechanism of water absorption for polymer materials was revealed by molecular dynamics simulation. The results show that the higher the water absorption of polymer, the larger the swelling volume, the more the surface hardness and compressive strength decrease, and the toughness and friction coefficient of the material increase obviously. The water absorption status of polymer materials is closely related to the polarity of molecular chain. Water molecules are easy to form hydrogen bonds with polymer molecular chains of high polarity, which is the main factor of water absorption.


Keywords: polymer, water absorption, tribological performance, molecular dynamics.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2023; 47(3): 264-277

    Published online May 25, 2023

  • 10.7317/pk.2023.47.3.264
  • Received on Nov 5, 2022
  • Revised on Feb 14, 2023
  • Accepted on Mar 14, 2023

Correspondence to

  • Haitao Duan

  • *State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan Research Institute of Materials Protection, Wuhan 430030, Hubei, China
    **Hubei Longzhong Laboratory, Xiangyang 441000, Hubei, China

  • E-mail: duanhaitao2007@163.com