碳纳米管改性环氧树脂对PBO纤维复合材料的界面效应：准静态和动态力学性能

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-06-23 DOI:10.1016/j.porgcoat.2025.109476

Hua Zhang , Yuchen Xie , Ping Wang , Zhengqiang Lv , Dongmei Hu , Yan Zhang

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引用次数: 0

摘要

PBO（对苯并二苯并异恶唑）纤维在各种工程领域显示出相当大的应用潜力。然而，它们的表面过于光滑，极大地阻碍了它们的性能。本文采用不同浓度的碳纳米管改性环氧树脂（EP/CNTs）对氧等离子体处理后的PBO纤维进行涂层改性，制备了PBO单纤维增强复合材料。结果表明，在PBO纤维表面涂覆树脂后，PBO纤维的O/C比提高，并引入了环氧/双酚等结构。界面抗剪强度（IFSS）随EP/CNTs浓度的增加而增加，可达65.34 MPa。涂层改性后PBO纤维的动态力学性能有所提高，在应变速率为1100 s−1时拉伸强度最高，达到8.8 GPa。本研究为PBO纤维的表面改性提供了一种可行而高效的策略，实现了树脂与组分纤维的更好结合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Interfacial effects of carbon nanotube-modified epoxy on PBO Fiber composites: Quasi-static and dynamic mechanical properties

PBO (p-phenylene benzobisoxazole) fibers demonstrate considerable potential for application in various engineering fields. Nevertheless, their surface, which is excessively smooth, significantly impedes their properties. In this paper, PBO single-fiber reinforced composites were prepared by coating and modifying PBO fibers after oxygen plasma treatment using different concentrations of carbon nanotube-modified epoxy resin (EP/CNTs). The results show that the O/C ratio of the PBO fibers increases and structures such as epoxy/bisphenol are introduced after coating the surface of the PBO fibers with resin. The interfacial shear strength (IFSS) increases with the concentration of the coated EP/CNTs, up to 65.34 MPa. The dynamic mechanical properties of the PBO fibers increase after the coating modification treatments, and the highest tensile strength achieves 8.8 GPa at a strain rate of 1100 s⁻¹. This work provides a feasible and efficient strategy to modify the surface of PBO fibers, achieving a better combination between resin and component fibers.

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.