成型工艺及铺层结构对CF/PPESK复合材料缺陷与力学性能的影响

doi:10.19936/j.cnki.2096-8000.20250528.008

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (5): 59-67.DOI: 10.19936/j.cnki.2096-8000.20250528.008

成型工艺及铺层结构对CF/PPESK复合材料缺陷与力学性能的影响

王俞童¹, 乔越¹, 贾航¹, 张玉¹, 陈曦¹, 刘程^1,2,3, 蹇锡高^1,2,3*

1.大连理工大学化工学院高分子科学与材料系, 大连 116024;
2.辽宁省高性能树脂材料专业技术创新中心, 大连 116012;
3.大连市高性能树脂及加工应用工程研究中心, 大连 116012

收稿日期:2024-03-25 出版日期:2025-05-28 发布日期:2025-07-11
通讯作者: 蹇锡高(1946—),男,硕士,工程院院士/教授,博士生导师,研究方向为高性能树脂及其应用技术,jian4616@dlut.edu.cn。
作者简介:王俞童(1999—),女,硕士,研究方向为高性能树脂基复合材料改性及界面研究。
基金资助:
国家自然科学基金面上项目(52373068);国家自然科学基金重大研究计划-重点支持项目(91860204);中央高校基本科研业务(DUT22LAB605)

Effects of molding process and lay-up structure on the defects and mechanical properties of CF/PPESK composites

WANG Yutong¹, QIAO Yue¹, JIA Hang¹, ZHANG Yu¹, CHEN Xi¹, LIU Cheng^1,2,3, JIAN Xigao^1,2,3*

1. Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;
2. Liaoning Province Technology Innovation Center of High Performance Resin Materials, Dalian 116012, China;
3. Dalian Engineering Research Center of High Performance Resin, Processing and Application, Dalian 116012, China

Received:2024-03-25 Online:2025-05-28 Published:2025-07-11

摘要/Abstract

摘要： 本文采用溶液浸渍法制备碳纤维增强杂萘联苯聚芳醚砜酮树脂基(CF/PPESK)预浸带,通过正交试验优化胶液浓度、湿法预浸工艺参数,当胶液浓度为20wt%、辊轴转速为7 r/min、带距宽度为6.5 mm时,预浸带树脂体积含量为40.01%,面密度为218 g/m²。通过真空模压成型制备CF/PPESK复合材料,通过相控阵超声C扫描和三点弯曲测试,探究不同成型工艺对准各向同性(QI)复合材料层合板缺陷及力学性能的影响规律。结果表明:当成型温度为350 ℃、成型压力为16 MPa时,QI层合板分层缺陷最少,其弯曲强度为345 MPa,模量为46 GPa;不同铺层结构复合材料层合板在250 ℃下的弯曲强度保持率为60%~62%。为提高CF/PPESK@QI复合材料层合板的弯曲性能,在树脂基体中引入大分子接枝改性碳纳米管(MWCNTs-P),不同铺层结构层合板弯曲强度分别提高了39%~46%,在250 ℃下的弯曲强度保持率为47%~52%。

关键词: 热塑性树脂基复合材料, 杂萘联苯结构聚芳醚砜酮, 力学性能, 铺层结构, 成型工艺

Abstract: In this paper, the prepreg of continuous carbon fiber reinforced poly(phthalazinone ether sulfone ketone) resin matrix composites (CF/PPESK) was prepared using the solution impregnation method. Through an orthogonal test, the concentration of the impregnating solution and process parameters for prepreg-making equipment were optimized. When the concentration of impregnating solution is 20wt%, the roller speed is 7 r/min and the strip width is 6.5 mm, the resin volume content and areal density of the prepreg are 40.01% and 218 g/m², respectively. CF/PPESK were prepared by hot pressing, the defects and properties of isotropic (QI) composite laminates under different forming processes were investigated, by the ultrasonic phased array and three-point flexural test. The results show that the defect of QI laminates is the least, the flexural strength and modulus are 345 MPa and 46 GPa, when the molding temperature and pressure are 350 ℃ and 16 MPa, respectively. The flexural strength retention rate of composite laminates with different lay-up structures are 60%~62% at 250 ℃. In order to improve the flexural strength of CF/PPESK@QI composite laminates, by MWCNTs-P is blended with PPESK resin matrix, the flexural strength of laminates with different lay-up structures could be improved by 39%~46%, At 250 ℃, the flexural strength retention rate of composite laminates with different lay-up structures are 47%~52%.

Key words: thermoplastic polymer composite, poly(phthalazinone ether sulfone ketone), mechanical property, lay-up structure, molding process

中图分类号:

TB332

王俞童, 乔越, 贾航, 张玉, 陈曦, 刘程, 蹇锡高. 成型工艺及铺层结构对CF/PPESK复合材料缺陷与力学性能的影响[J]. 复合材料科学与工程, 2025, 0(5): 59-67.

WANG Yutong, QIAO Yue, JIA Hang, ZHANG Yu, CHEN Xi, LIU Cheng, JIAN Xigao. Effects of molding process and lay-up structure on the defects and mechanical properties of CF/PPESK composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(5): 59-67.

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成型工艺及铺层结构对CF/PPESK复合材料缺陷与力学性能的影响

Effects of molding process and lay-up structure on the defects and mechanical properties of CF/PPESK composites

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