结晶度对玻璃纤维增强聚芳醚酮拉挤棒材性能影响

doi:10.19936/j.cnki.2096-8000.20260528.010

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (5): 69-77.DOI: 10.19936/j.cnki.2096-8000.20260528.010

结晶度对玻璃纤维增强聚芳醚酮拉挤棒材性能影响

张武星¹, 崔亓官², 蒋诗才², 姚佳楠¹, 周续鹏¹, 于有海^1*

1.东华大学材料科学与工程学院先进纤维材料全国重点实验室先进低维材料中心,上海 201620;
2.中国航空制造技术研究院复合材料技术中心,北京 101300

收稿日期:2025-04-16 出版日期:2026-05-28 发布日期:2026-07-01
通讯作者: 于有海(1977—),男,博士,研究员,博士生导师,研究方向为高性能热塑性复合材料,yuyouhai@dhu.edu.cn。
作者简介:张武星(2000—),男,硕士研究生,研究方向为高性能热塑性复合材料。
基金资助:
工信部民用飞机专项科研基金(MJZ1-11N22)

Effect of crystallinity on properties of glass fiber reinforced poly(aryl ether ketone) pultruded bars

ZHANG Wuxing¹, CUI Qiguan², JIANG Shicai², YAO Jianan¹, ZHOU Xupeng¹, YU Youhai^1*

1. Center for Advanced Low-dimension Materials, State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
2. Composite Technology Center, AVIC Manufacturing Technology Institute, Beijing 101300, China

Received:2025-04-16 Online:2026-05-28 Published:2026-07-01

摘要/Abstract

摘要： 本文采用拉挤成型工艺制备玻璃纤维增强聚芳醚酮复合材料棒材,通过等温热处理的方式调控成型后棒材中树脂的结晶度,研究了树脂结晶度对棒材弯曲、压缩及剪切强度等力学性能的影响。结果表明:拉挤成型后的等温热处理提高了复合材料棒材中树脂基体的结晶度,使树脂的刚度提高,进而显著提高了棒材的弯曲与压缩性能;但本体结晶随后处理温度的提高而提高,导致树脂/纤维界面强度下降,使得棒材剪切性能降低。由此可见,对于玻璃纤维增强聚芳醚酮棒材而言,结晶度会影响树脂基体刚度和纤维与树脂界面结合强度,进而影响棒材的力学性能。这一发现可为优化热塑性拉挤工艺及拓展其工程应用提供理论依据。

关键词: 热塑性棒材, 玻璃纤维增强聚芳醚酮, 结晶度, 拉挤成型, 双剪切性能

Abstract: In this paper, glass fiber reinforced poly(aryl ether ketone) composite bar was prepared by pultrusion process. The influence of resin crystallinity on bending, compression and shear strength of composite bar was studied by isothermal heat treatment. The results show that the isothermal heat treatment after pultrusion improves the crystallinity of the resin matrix in the composite bar, increases the stiffness of the resin, and then significantly improves the bending and compression properties of the composite bar. However, the increase of crystallinity leads to the decrease of the resin/fiber interface strength and the decrease of the shear properties of the composite bar. Therefore, for glass fiber reinforced poly(aryl ether ketone) bars, crystallinity affects the stiffness of resin matrix and the interface bonding strength of fiber and resin, and then affects the mechanical properties of composite bars. This finding can provide a theoretical basis for optimizing the thermoplastic pultrusion process and expanding its engineering application.

Key words: thermoplastic bar, glass fiber reinforced poly(aryl ether ketone), crystallinity, pultrusion molding, double shear performance

中图分类号:

TB332

张武星, 崔亓官, 蒋诗才, 姚佳楠, 周续鹏, 于有海. 结晶度对玻璃纤维增强聚芳醚酮拉挤棒材性能影响[J]. 复合材料科学与工程, 2026, 0(5): 69-77.

ZHANG Wuxing, CUI Qiguan, JIANG Shicai, YAO Jianan, ZHOU Xupeng, YU Youhai. Effect of crystallinity on properties of glass fiber reinforced poly(aryl ether ketone) pultruded bars[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(5): 69-77.

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结晶度对玻璃纤维增强聚芳醚酮拉挤棒材性能影响

Effect of crystallinity on properties of glass fiber reinforced poly(aryl ether ketone) pultruded bars

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