Enhancing the mechanical properties of carbon fiber/epoxy resin laminates through a combination of carbon fiber coating and matrix reinforcement with an aminated para-polyamide

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-01-17 DOI:10.1016/j.compositesa.2025.108740

Boshi Yu, Yiwei Zhang, Yue Liu, Yewei Jin, Yihu Song, Mao Peng

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Abstract

Carbon fiber (CF) reinforced resin composites (CFRCs) fabricated through vacuum-assisted resin infusion (VARI) have been extensively used in various industries. Inorganic nanomaterials that improve the strength and toughness of matrices significantly increase the viscosity, making the VARI process difficult. Furthermore, improving the CF-matrix interfacial interactions using commercial polymeric sizing agents potentially leads to a reduction in the glass transition temperature of high cross-linking density epoxy resins. Herein, poly(p-amino-phenylene amino-terephthalamide) ((NH₂)₂-PPTA), an aminated para-polyamide, was used as a novel sizing agent for CFs and as a reinforcing agent for the matrix. With the addition of just 0.139 mg/cm² of (NH₂)₂-PPTA on each CF sheet and 0.5 wt% of (NH₂)₂-PPTA in the matrix, the flexural strength, fracture total energy, interlaminar shear strength, and mode II interlaminar fracture toughness are enhanced by 32.4 %, 61.7 %, 39.6 %, and 90.9 %, respectively, significantly higher than those of CFRCs individually modified by fiber sizing or matrix reinforcement.

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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.