基于FCIP@C@MoS2复合材料的超材料宽带微波吸收材料的数字光处理制备

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

Composites Communications Pub Date : 2025-05-14 DOI:10.1016/j.coco.2025.102459

Chenyang Li, Quandai Wang, Bingyang Zhu, Linxin Wang, Dajing Gao, Zhenyi Yuan

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引用次数: 0

摘要

合成了一种多组分核壳结构的微波吸收剂片状羰基铁@C@MoS2 （FCIP@C@ mos2）。光聚合物浆料仅含有15 wt%的吸收剂，通过有效地利用磁性和介电性的协同效应，表现出卓越的微波吸收性能。根据制备的吸波复合材料的电磁参数，设计了超材料吸波材料，并利用CST仿真软件对其几何参数进行了优化。利用所制备的光聚合物浆料，通过数字光处理（DLP） 3D打印技术制备了MMAs的细胞结构。优化后的吸波器有效吸收带宽（EAB）为5.6-18 GHz，在厚度为7.2 mm时具有45°的广角吸收特性，密度仅为1.28 g/cm3。值得注意的是，低吸收剂含量不仅显著提高了DLP加工中的固化效率和打印分辨率，更重要的是，轻量化设计满足了实际应用要求。

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Fabrication of metamaterial absorbers based on FCIP@C@MoS2 composites via digital light processing for broadband microwave absorption

A microwave absorbents of multi-component core-shell structures Flaky carbonyl iron @C@MoS₂ (FCIP@C@MoS₂) was synthesized. The photopolymer slurry containing only 15 wt% absorbents exhibits exceptional microwave absorption performance by effectively leveraging the synergistic effects of magnetic and dielectric properties. Based on the electromagnetic parameters of the prepared absorbing composites, the metamaterial absorbers (MMAs) were designed, and their geometric parameters were optimized using CST simulation software. The cell structure of the MMAs was fabricated through Digital Light Processing (DLP) 3D printing by using the developed photopolymer slurry. The absorber with optimized parameters achieves an effective absorption bandwidth (EAB) of 5.6–18 GHz and demonstrates wide-angle absorption characteristics up to 45° at a thickness of 7.2 mm, with a density of only 1.28 g/cm³. Notably, the low absorbents content not only enhances curing efficiency and printing resolution in DLP processing significantly, but even more, the lightweight design meets practical application requirements.

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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.