Acta Phys. -Chim. Sin. ›› 2026, Vol. 42 ›› Issue (8): 100315.doi: 10.1016/j.actphy.2026.100315

• ARTICLE • Previous Articles     Next Articles

Hydrogen-bonding intermolecular interaction between graphene oxide and polytetrafluoroethylene enhanced creep resistance

Ke Liu1,2,3, Qi Gao4, Haifeng Li2, Lipeng Diao1,3,4,*(), Xuegang Chen1,3,4,*(), Daohao Li1, Guanglei Wu1,*()   

  1. 1 State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, Shandong Province, China
    2 School of Automotive Materials, Hubei University of Automotive Technology, Shiyan 442002, Hubei Province, China
    3 Ningbo Yokey Precision Technology Co., Ltd, Ningbo 315400, Zhejiang Province, China
    4 Qingdao Hanxing New Material Co., Ltd, Qingdao 266109, Shandong Province, China
  • Received:2026-01-31 Revised:2026-05-04 Accepted:2026-05-06 Published:2026-06-11
  • Contact: Email: diaolipeng@qdhanxing.com (Lipeng Diao)chenxuegang.cool@163.com (Xuegang Chen)wuguanglei@qdu.edu.cn/wuguanglei@mail.xjtu.edu.cn (Guanglei Wu)

Abstract:

Polytetrafluoroethylene (PTFE) is widely used due to its excellent thermal stability, electrical insulation, and low friction characteristics. However, its significant creep behavior greatly limits its application range. Inorganic fillers can effectively improve the creep resistance of PTFE-based materials, and the interaction between the filler and the PTFE matrix plays a key role in the modification effect. This study employs two-dimensional monolayer graphene oxide (GO) as a reinforcing filler to prepare graphene oxide-polytetrafluoroethylene (GO-PTFE) composites, achieving a significant enhancement in creep resistance. The surface of graphene oxide is rich in oxygen-containing functional groups, which can form strong interfacial hydrogen bonds with fluorine atoms in the PTFE matrix. Theoretical calculations and molecular dynamics simulations indicate that there is a strong intermolecular interaction in GO-PTFE composites. This interaction effectively restricts the movement of PTFE molecular chains, reduces their slippage and deformation under external forces, and thereby decreases the material's creep extent.

Key words: Hydrogen bonding, Filling modification, Polytetrafluoroethylene, Creep resistance