Multifunctional carbon fiber reinforced multilayered metastructure with broadband microwave absorption and effective mechanical resistance,Polymer Composites

当前位置： X-MOL 学术 › Polym. Compos. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Multifunctional carbon fiber reinforced multilayered metastructure with broadband microwave absorption and effective mechanical resistance
Polymer Composites ( IF 4.8 ) Pub Date : 2021-01-14 , DOI: 10.1002/pc.25939
Yixing Huang ₁ , Jin Chen ₂ , Qunfu Fan ₂ , Mingji Chen _{2,

3} , Daining Fang _{1,

2,

3}

Affiliation

Metastructure is an innovative structure form to improve broadband microwave absorption. However, without reliable mechanical properties, it is difficult to apply metastructure absorbers in realistic application scenarios. Herein, a multifunctional carbon fiber reinforced multilayered metastructure (CFRMM) is proposed and fabricated through the principles of multiscale design, gradient structure design, and metastructure design. The multiwall carbon nanotube (MWCNT)/carbonyl iron (CI)/epoxy resin(EP) nano lossy composite was integrated with the patterned resistive films (PRF) to form a gradient metastructure. Carbon fiber (CF) cloth was incorporated into the structure to enhance mechanical resistance. The CFRMM achieves −10 dB absorption bandwidth in frequency bands of 2‐4.3 GHz and 7.02‐18 GHz with maximum absorption of −17.4 dB. The −9 dB absorption bandwidth was covered in the full band 2‐18 GHz. The CFRMM exhibits excellent mechanical properties with equivalent tensile strength and flexural strength of 75.77 and 408.43 MPa, respectively. The large tensile fracture strain of 24% reveals the good toughness of the metastructure. Broadband microwave absorption and effective load bearing integrated in one structure make the CFRMM more promising for applications in the future.

中文翻译：

具有宽带微波吸收和有效机械阻力的多功能碳纤维增强多层元结构

元结构是改善宽带微波吸收的创新结构形式。但是，如果没有可靠的机械性能，则很难在实际的应用场景中应用元结构吸收器。在此，通过多尺度设计，梯度结构设计和元结构设计的原理，提出并制造了多功能碳纤维增强的多层元结构（CFRMM）。将多壁碳纳米管（MWCNT）/羰基铁（CI）/环氧树脂（EP）纳米有损复合材料与图案化电阻膜（PRF）集成在一起，形成梯度亚结构。碳纤维（CF）布被合并到结构中以增强机械强度。CFRMM在2–4.3 GHz和7.02–18 GHz的频带中达到-10 dB的吸收带宽，最大吸收为−17.4 dB。-9 dB的吸收带宽覆盖了2-18 GHz的整个频带。CFRMM具有出色的机械性能，等效抗拉强度和挠曲强度分别为75.77和408.43 MPa。24％的大拉伸断裂应变显示出良好的韧性。集成在一个结构中的宽带微波吸收和有效的承重能力使CFRMM在未来的应用中更具前景。

更新日期：2021-01-14

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11