超薄氧化锆纤维/环氧树脂膜提高玄武岩纤维增强聚合物的抗弯和抗冲击强度

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-05-06 DOI:10.1016/j.compositesb.2025.112609

Jiaxin He , Yanan Lyn , Fei Cheng , Xiang Yuan , Guangming Yang , Xueling Liang , Shuying Shi , Hongyong Jiang , Xiaozhi Hu , Xi Chen

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引用次数: 0

摘要

研究了层状玄武岩纤维增强聚合物（BFRP）的层间结构优化和抗弯性能改善。采用静电纺丝法在实验室自行制备氧化锆纤维（ZF），并将其作为增强纤维与环氧树脂混合形成ZF/环氧树脂混合料，再将其引入BFRP复合材料中间层中，形成多向柔性引脚。柔性ZF引脚充当光纤桥接，连接和抓住相邻层，以增强层间键合。设计了不同面积密度（0.75 wt%, 1.5 wt%, 3 wt%, 4.5 wt%）的ZF来评估增强效果。三点弯曲试验结果表明，添加3 wt% ZF的BFRP复合材料的抗折强度为293.84 MPa，冲击后抗折强度（FAI）为23.44 MPa，分别比未加筋试件提高48.67%和44.87%。BFRP的抗冲击性能提高，破坏模式由分层为主转变为准剪切破坏。综上所述，静电纺丝法制备的ZF是一种提高BFRP复合材料抗弯强度和FAI的有效纤维，具有制造高性能民用层压纤维增强复合材料的潜力。

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Flexural and flexural-after-impact strength of basalt fiber reinforced polymer improved by ultra-thin zirconia fiber/epoxy films

This study focused on the interlaminar structure optimization and flexural performance improvement of laminated basalt fiber reinforced polymers (BFRP). Zirconia fiber (ZF) was self-prepared in laboratory by electrospinning method and used as reinforcing fiber to mix with epoxy resin form ZF/epoxy mixture, and then were introduced into interlayer of BFRP composite to build multi-directional flexible pins. The flexible ZF pins behaved as the fiber bridging to connect and grasp adjacent layers for stronger interlaminar bonding. Various areal densities (0.75 wt%, 1.5 wt%, 3 wt%, 4.5 wt%) of ZF were designed to evaluate the reinforcement effect. Three point bending results showed that BFRP composites with 3 wt% ZF exhibited the best flexural strength of 293.84 MPa and flexural strength after impact (FAI) of 23.44 MPa, enhanced by 48.67 % and 44.87 % respectively compared with the unreinforced specimens. The impact resistance was improved and the failure modes of BFRP were also changed from delamination-dominated failure to quasi-shear failure. In summary, the self-prepared ZF via electrospinning was a useful fiber to improve the flexural strength and FAI of BFRP composite, and had the potential to be an alternative in manufacturing high-performance laminated fiber-reinforced composite for civilian products.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.