Preparation and properties of carbon fiber reinforced epoxy resin composites interlaminate-toughened by polyethersulfone ultrafine-fiber non-woven fabric

被引：0
|
作者：
Zhang D. [1 ,2 ]
Bao J. [2 ,3 ,4 ]
Zhong X. [2 ,3 ,4 ]
Wang D. [5 ]
Zhang T. [5 ]
Chen X. [1 ,2 ]
机构：
[1] AECC Beijing Institute of Aeronautical Materials, Beijing
[2] National Key Laboratory of Advanced Composites, Beijing
[3] AVIC Composite Center, Beijing
[4] AVIC Composite Corporation Ltd., Beijing
[5] Beijing Institute of Fashion Technology, School of Material Science and Technology, Beijing
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2022年 / 39卷 / 08期
关键词：
blended spinning; carbon fiber; composites; epoxy resin; interlaminar toughing;
D O I：
10.13801/j.cnki.fhclxb.20210909.004
中图分类号：
学科分类号：
摘要：
To improve the compression strength after impact of epoxy-based composites, polyethersulfone (PES) ultrafine-fiber non-woven fabric was fabricated from polyethersulfone-Nylon 6 (PES-PA6) blended fibers using solution-stripping method, which is more suitable for batch preparation. Then the obtained non-woven fabric was applied in the interlaminar toughing of carbon fiber reinforced epoxy resin-based composites. Interlaminar fracture toughness under mode I (GIC), interlaminar fracture toughness under mode II (GIIC), compressive strength after impact (CAI) and interlaminar fracture micro-morphology of composites were tested to research the influence of the non-woven fabric on the interlaminar toughness of composites and the corresponding mechanism of interla-minar toughing. The result indicates that after epoxy resin-based composites are interlaminate-toughened with the non-woven fabric, the GIC value is raised to 312 J/m2 from 289 J/m2 and GIIC value is improved to 3649 J/m2 from 1391 J/m2. Also, the post-impact damage area of tested specimens is reduced from 1050 mm2 to 204 mm2 after toughing treatment, and the corresponding post-impact compressive strength is increased from 228 MPa to 307 MPa. © 2022 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：3767 / 3775
页数：8
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