由氧化石墨烯/单宁装饰碳纤维制成的多功能复合纸，具有优异的电磁干扰屏蔽、抗菌和吸音性能

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-11-05 DOI:10.1016/j.coco.2024.102147

Xiaopeng Yue , Yandan Liang , Panpan Cao , Longlong Yan , Siqian Zhang , Ling Meng

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引用次数: 0

摘要

考虑到单宁酸独特的氧化偶联特性，采用氨基改性氧化石墨烯（GON）作为界面夹层，通过席夫碱反应在碳纤维（CF）表面构建纳米涂层结构。此外，利用表面改性碳纤维（TCF/GON）和植物纤维制备了一种具有优异电磁干扰屏蔽、抗菌和吸音性能的多功能复合纸（PTCF/GON）。TCF/GON 表面活性基团的增加改善了其亲水性，提高了其在水中的分散性，从而有助于通过传统的湿法成型工艺形成有效互连的导电网络。采用 30 wt% 表面装饰 CF 制造的复合纸（PTCF1.5/GON1.2）在 X 波段的电磁干扰屏蔽效果高达 43.4 dB，可屏蔽 99.9 % 的入射电磁能量。同时，PTCF1.5/GON1.2 在特定频段具有良好的吸音性能，在 1180 Hz 附近的吸音系数达到 0.98。此外，PTCF1.5/GON1.2 还具有优异的抗菌性能。这一策略为制造性能优越的多功能电磁屏蔽材料提供了一种经济实用的方法。

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Multifunctional composite paper fabricated by graphene oxide/tannin decorated carbon fiber with excellent electromagnetic interference shielding, antibacterial and sound absorption properties

Considering the distinctive oxidative coupling characteristic of tannin acid, it was used as an interfacial interlayer to build a nano-coating structure on the surface of carbon fiber (CF)using amino-modified graphene oxide (GON) via Schiff base reaction. Furthermore, a kind of multifunctional composite paper (PTCF/GON) with excellent electromagnetic interference shielding, antibacterial and sound absorption properties was fabricated using surface modified CF (TCF/GON) and plant fibers. The increased active groups on the surface of TCF/GON improved its hydrophilicity and enhanced its dispersibility in water, which facilitated to form an effective interconnected conductive network of composite paper via traditional wet forming process. Composite paper fabricated by 30 wt% surface decorated CF (PTCF_1.5/GON_1.2) achieved an electromagnetic interference shielding effectiveness as high as 43.4 dB in X-band, shielding 99.9 % of incident electromagnetic energy. Meanwhile, PTCF_1.5/GON_1.2 exhibits good sound absorption performance in specific frequency bands, with a sound absorption coefficient of 0.98 around 1180 Hz. Besides, PTCF_1.5/GON_1.2 also exhibited excellent antibacterial properties. This strategy provides an economical and practical method for manufacturing multifunctional electromagnetic shielding materials with superior performance.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.