Increasing the interlaminar fracture toughness and thermal conductivity of carbon fiber/epoxy composites interleaved with carbon nanotube/polyimide composite films

ZHANG Li-li; LI Xin-lian; WANG Peng; WEI Xing-hai; JING De-qi; ZHANG Xing-hua; ZHANG Shou-chun

doi:10.1016/S1872-5805(23)60738-3

Volume 38 Issue 3

Jun. 2023

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Article Navigation > New Carbon Mater. > 2023 > 38(3): 566-575

ZHANG Li-li, LI Xin-lian, WANG Peng, WEI Xing-hai, JING De-qi, ZHANG Xing-hua, ZHANG Shou-chun. Increasing the interlaminar fracture toughness and thermal conductivity of carbon fiber/epoxy composites interleaved with carbon nanotube/polyimide composite films. New Carbon Mater., 2023, 38(3): 566-575. doi: 10.1016/S1872-5805(23)60738-3

Citation:

ZHANG Li-li, LI Xin-lian, WANG Peng, WEI Xing-hai, JING De-qi, ZHANG Xing-hua, ZHANG Shou-chun. Increasing the interlaminar fracture toughness and thermal conductivity of carbon fiber/epoxy composites interleaved with carbon nanotube/polyimide composite films. New Carbon Mater., 2023, 38(3): 566-575. doi: 10.1016/S1872-5805(23)60738-3

Citation:

ZHANG Li-li, LI Xin-lian, WANG Peng, WEI Xing-hai, JING De-qi, ZHANG Xing-hua, ZHANG Shou-chun. Increasing the interlaminar fracture toughness and thermal conductivity of carbon fiber/epoxy composites interleaved with carbon nanotube/polyimide composite films. New Carbon Mater., 2023, 38(3): 566-575. doi: 10.1016/S1872-5805(23)60738-3

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Increasing the interlaminar fracture toughness and thermal conductivity of carbon fiber/epoxy composites interleaved with carbon nanotube/polyimide composite films

doi: 10.1016/S1872-5805(23)60738-3

ZHANG Li-li^{1, 2, 3
,},
LI Xin-lian^{1, 3
,},
WANG Peng^{1, 3
,},
WEI Xing-hai^{1, 3
,},
JING De-qi^{1, 3
,},
ZHANG Xing-hua^{1, 3
,},
ZHANG Shou-chun^{1, 2, 3
,
,}

1.
Research Center of Advanced Thermoplastic Composites Engineering, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3.
CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China

Funds: This work was supported by the Key Research and Development Program of Shanxi Province (202003D111002), Major Science and Technology Project in Shanxi Province (202101040201003), and the Innovation Fund Project of Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences (SCJC-XCL-2022-12)

More Information

Author Bio:
张丽丽，博士研究生. E-mail：zhanglili@sxicc.ac.cn
Corresponding author: ZHANG Shou-chun, Professor. E-mail: zschun@sxicc.ac.cn
Received Date: 2023-02-10
Accepted Date: 2023-04-06
Rev Recd Date: 2023-04-06

Available Online: 2023-04-13

Publish Date: 2023-06-01

Abstract

Abstract

Carbon fiber/epoxy (CF/EP) composites are widely used in the aerospace industry, but their interlaminar properties and out-of-plane thermal conductivity are poor because of the lack of CF reinforcement in the interlaminar area. We prepared carbon nanotube/polyimide (CNT/PI) composite films and used them to improve the interlaminar fracture toughness (ILFT) and thermal conductivity of laminates of CF/EP and CNT/PI. Interleaving CNT/PI films with unidirectional CF/EP prepregs increased the mode I (the pre-cracked laminate failure is governed by peel forces) and mode II (the crack is propagated by shear stresses) ILFT of CF/EP laminates by 260% and 220%, respectively, which is attributed to the reinforcement effect of the CNTs and the plastic deformation of PI film. In addition, the out-of-plane thermal conductivity of the laminates is improved by introducing CNT/PI films because of their intrinsic high thermal conductivity and the continuous conductive network of CNTs. This toughening method provides an effective strategy for improving the thermal conductivity and mechanical properties of CF/EP laminates simultaneously.
- CNT/BOH film,
- ILFT,
- Thermal conductivity,
- CF/EP laminates,
- Thermal conductive network

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References(36)

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