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

ZHANG Daijun; BAO Jianwen; ZHONG Xiangyu; WANG Dehui; ZHANG Tianjiao; CHEN Xiangbao

doi:10.13801/j.cnki.fhclxb.20210909.004

Volume 39 Issue 8

Aug. 2022

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ZHANG Daijun, BAO Jianwen, ZHONG Xiangyu, et al. Preparation and properties of carbon fiber reinforced epoxy resin composites interlaminate-toughened by polyethersulfone ultrafine-fiber non-woven fabric[J]. Acta Materiae Compositae Sinica, 2022, 39(8): 3767-3775. doi: 10.13801/j.cnki.fhclxb.20210909.004

Citation:

ZHANG Daijun, BAO Jianwen, ZHONG Xiangyu, et al. Preparation and properties of carbon fiber reinforced epoxy resin composites interlaminate-toughened by polyethersulfone ultrafine-fiber non-woven fabric[J]. Acta Materiae Compositae Sinica, 2022, 39(8): 3767-3775. doi: 10.13801/j.cnki.fhclxb.20210909.004

Citation:

ZHANG Daijun, BAO Jianwen, ZHONG Xiangyu, et al. Preparation and properties of carbon fiber reinforced epoxy resin composites interlaminate-toughened by polyethersulfone ultrafine-fiber non-woven fabric[J]. Acta Materiae Compositae Sinica, 2022, 39(8): 3767-3775. doi: 10.13801/j.cnki.fhclxb.20210909.004

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

doi: 10.13801/j.cnki.fhclxb.20210909.004

ZHANG Daijun^{1, 2},
BAO Jianwen^{2, 3, 4
,
,},
ZHONG Xiangyu^{2, 3, 4},
WANG Dehui⁵,
ZHANG Tianjiao⁵,
CHEN Xiangbao^{1, 2}

1.
AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
2.
National Key Laboratory of Advanced Composites, Beijing 100095, China
3.
AVIC Composite Center, Beijing 101300, China
4.
AVIC Composite Corporation Ltd., Beijing 101300, China
5.
Beijing Institute of Fashion Technology, School of Material Science and Technology, Beijing 100029, China

Received Date: 2021-07-26
Accepted Date: 2021-08-27
Rev Recd Date: 2021-08-18

Available Online: 2021-09-09

Publish Date: 2022-08-31

Abstract

Abstract

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 (G_IC), interlaminar fracture toughness under mode II (G_IIC), 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 G_IC value is raised to 312 J/m² from 289 J/m² and G_IIC 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.
- epoxy resin,
- composites,
- carbon fiber,
- interlaminar toughing,
- blended spinning
Long Abstrsct
Innovation Points

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References(23)

References

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