Self-assembling biomimetic coating composed of 1D/2D CNT/polydopamine modified GO hybrid for solving conflict between carbon fiber-epoxy adhesion strength and fracture toughness

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-02-11 DOI:10.1016/j.compositesa.2025.108800

Yating Li , Qing Wu , Ziyi Ye , Renjie Yao , Dan Jin , Min Zhao , Jianfeng Zhu

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Abstract

Tackling the intractable contradiction of interfacial strength-toughness is critical. Herein, shell nacre-mimetic coating composed of carbon nanotube (CNT) reinforced polyether amine (PEA)-polydopamine (PDA) and PDA functionalized graphene oxide (GO@PDA) was self-assembled around carbon fiber via a facile, green, low-cost but effective technique of vacuum filtration to fulfill the amplification of synergy effects of GO and CNTs under the constraint of delicate layered architecture. Contents of CNTs and GO@PDA were compared to optimize the performances. When 0.2 g GO@PDA and 5 ml CNTs were added, amazing growths in interfacial shear strength and fracture toughness of 114.2 % and 348.7 % were achieved, relative to untreated fiber composites. Increase in interfacial adhesion is associated with synergistic interactions of covalent and hydrogen bonds, π-π stacking along with mechanical pinning at interphase, while advance in interfacial toughness assigns with crack propagation, stretching deformation, and breakage of hydrogen bridge and π-π interaction that dissipate energy.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.