Fabrication of Mechanically Robust Self-lubricating Polyphenylene Sulfide Composites for High PV (Pressure × Velocity) Applications

Ji-Xiang Li; Mei Liang; Xiao-Wen Zhao; Sheng-Tai Zhou; Hua-Wei Zou

doi:10.1007/s10118-025-3486-4

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Fabrication of Mechanically Robust Self-lubricating Polyphenylene Sulfide Composites for High PV (Pressure × Velocity) Applications

RESEARCH ARTICLE | Updated：2026-01-13

- Fabrication of Mechanically Robust Self-lubricating Polyphenylene Sulfide Composites for High PV (Pressure × Velocity) Applications
- Chinese Journal of Polymer Science Vol. 44, Issue 1, Pages: 140-153(2026)
- Affiliations：
  
  State Key Laboratory of Advanced Polymer Materials, Polymer Research Institute, Sichuan University, Chengdu 610065, China
- Author bio：
  
  qduzst@163.com (S.T.Z.)
  hwzou@163.com (H.W.Z.)
- Funds：
- DOI：10.1007/s10118-025-3486-4
  CLC：
- Received：28 August 2025，
  
  Accepted：20 October 2025，
  
  Online First：04 January 2026，
  
  Published：15 January 2026
- Accepted：
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Li, J. X.; Liang, M.; Zhao, X. W.; Zhou, S. T.; Zou, H. W. Fabrication of mechanically robust self-lubricating polyphenylene sulfide composites for high PV (pressure × velocity) applications. Chinese J. Polym. Sci. 2026, 44, 140–153

Ji-Xiang Li, Mei Liang, Xiao-Wen Zhao, et al. Fabrication of Mechanically Robust Self-lubricating Polyphenylene Sulfide Composites for High PV (Pressure × Velocity) Applications[J]. Chinese Journal of Polymer Science, 2026, 44(1): 140-153.
Li, J. X.; Liang, M.; Zhao, X. W.; Zhou, S. T.; Zou, H. W. Fabrication of mechanically robust self-lubricating polyphenylene sulfide composites for high PV (pressure × velocity) applications. Chinese J. Polym. Sci. 2026, 44, 140–153 DOI： 10.1007/s10118-025-3486-4.

Ji-Xiang Li, Mei Liang, Xiao-Wen Zhao, et al. Fabrication of Mechanically Robust Self-lubricating Polyphenylene Sulfide Composites for High PV (Pressure × Velocity) Applications[J]. Chinese Journal of Polymer Science, 2026, 44(1): 140-153. DOI： 10.1007/s10118-025-3486-4.

摘要

Multi-scale carbon fibers (CFs) can give full play to their respective advantages under certain ratios

thus achieving a significant improvement in the comprehensive performance of polyphenylene sulfide/irradiationtreated polytetrafluoroethylene (PPS/i-PTFE). Tribological tests at high PV (pressure × velocity) verified the viability of the composite in a demanding service environment.

Abstract

To address the poor mechanical performance and improve the tribological properties of self-lubricating polyphenylene sulfide/irradiation treated polytetrafluoroethylene (PPS/i-PTFE) blends

different aspect ratio carbon fibers (

i.e

PSCF: 50

SCF: about 429) were introduced as reinforcement fillers. The results showed that the hybriding of PSCF and SCF at certain mass ratios exhibited simultaneous enhancement of mechanical and tribological performance for PPS/i-PTFE blend through the construction of synergistic lubrication and mechanical interlocking network. Specifically

the flexural strength and modulus of PPS/i-PTFE were increased by 125.6% and 389.3%

the friction coefficient and specific wear rate were decreased by 13.9% and 95%

respectively. It was worth noting that PPS composites possessed excellent integrated performance which were able to withstand sliding action under high PV (≥10 MPa·m/s) conditions

as assessed by a customized pin-on-disc tester. This work demonstrated that the formation of intact lu

bricating film combined with the enhanced thermal and mechanical properties were favorable for improving the tribological properties of PPS-based composites

which makes them suitable for advanced engineering applications.

关键词

Keywords

references

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