石墨增强型 PTFE/PEEK 复合涂层可提高摩擦和耐磨性

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-04-10 DOI:10.1016/j.apsusc.2025.163214

Shengfang Yu , Chen Zhu , Hao Wu , Lulu Yao , Mausumi Mahapatra , Yufu Xu

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引用次数: 0

摘要

增强剂的加入可以改善聚合物涂层的摩擦学性能，从而延长航空液压泵摩擦副的使用寿命和可靠性。在低粘度介质中，研究了石墨对镀在铜-钢双金属基体上的聚四氟乙烯/聚醚酮（PTFE/PEEK）复合涂层摩擦学性能的影响。随着石墨含量的增加，磨损机制由黏着磨损过渡到疲劳磨损。含有14 wt%石墨的石墨/PTFE/PEEK涂层具有令人满意的减摩擦和耐磨性。与纯PTFE/PEEK涂层相比，COF降低34.5%，承载能力提高59.9%，磨损率降低56.7%。这项工作为开发用于实际航空航天应用的聚合物基涂料提供了有效的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Graphite-Enhanced PTFE/PEEK composite coating for improved friction and wear resistance

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Graphite-Enhanced PTFE/PEEK composite coating for improved friction and wear resistance

The incorporation of reinforcements can improve the tribological properties of polymer coating, thereby extending the service life and reliability of the friction pairs in aerospace hydraulic pumps. We investigated the effect of graphite incorporation on the tribological properties of polytetrafluoroethylene/polyetheretherketone (PTFE/PEEK) composite coating applied to a copper-steel bimetallic substrate in low viscosity media. The wear mechanism transitions from adhesive wear to fatigue wear with increasing graphite content. Graphite/PTFE/PEEK coating containing 14 wt% graphite exhibits satisfactory friction-reduction and wear resistance. Compared with the pure PTFE/PEEK coating, the COF is reduced by 34.5%, the bearing capacity is increased by 59.9%, and the wear rate is reduced by 56.7%. This work provides an effective approach to developing polymer-based coatings for practical aerospace applications.

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.