Citation: Ke Liu, Qi Gao, Haifeng Li, Lipeng Diao, Xuegang Chen, Daohao Li, Guanglei Wu. Hydrogen-bonding intermolecular interaction between graphene oxide and polytetrafluoroethylene enhanced creep resistance[J]. Acta Physico-Chimica Sinica, ;2026, 42(8): 100315. doi: 10.1016/j.actphy.2026.100315 shu

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

Ke Liu ^1,2,3 ,
Qi Gao ⁴ ,
Haifeng Li ² ,
Lipeng Diao ^1,3,4,, ,
Xuegang Chen ^1,3,4,, ,
Daohao Li ¹ ,
Guanglei Wu ^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

Corresponding author: Lipeng Diao, Xuegang Chen, Guanglei Wu,
Received Date: 31 January 2026
Revised Date: 4 May 2026
Accepted Date: 6 May 2026

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.
- Hydrogen bonding,
- Filling modification,
- Polytetrafluoroethylene,
- Creep resistance
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