MoS2 Lubricate-Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

IF 26.6 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2024-10-11 DOI:10.1007/s40820-024-01496-0

Jiaen Wang, Wei Ming, Longfu Chen, Tianliang Song, Moxi Yele, Hao Zhang, Long Yang, Gegen Sarula, Benliang Liang, Luting Yan, Guangsheng Wang

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Abstract

Highlights

The introduction of MoS₂ generates a “kill three birds with one stone” effect to the original binary MXene/ANF system: lubrication toughening mechanical performance; reduction in secondary reflection pollution of electromagnetic wave; and improvement in the performance of photothermal conversion.
After the introduction of MoS₂ into MXene/ANF (60:40), the strain and toughness were increased by 53.5% (from 18.3% to 28.1%) and 61.7% (from 8.9 to 14.5 MJ m⁻³), respectively. Fortunately, the SE_R decreases by 22.4%, and the photothermal conversion performance was increased by 22.2% from ~ 45 to ~ 55 °C.

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用于多功能电磁干扰屏蔽的 MoS2 润滑增韧 MXene/ANF 复合材料。

要解决电磁污染问题，当务之急是设计和制造反射率较低的高韧性电磁干扰（EMI）屏蔽复合薄膜。在二元 MXene/ANF 复合材料体系中引入 MoS2 后，制备出了具有珍珠层状结构的三元 MXene/ANF（芳纶纳米纤维）-MoS2 复合薄膜。MoS2 的引入起到了令人印象深刻的 "一石三鸟 "的改善效果：润滑增韧机械性能、减少电磁波二次反射污染、改善光热转换性能。在二元 MXene/ANF（质量比为 50:50）中引入 MoS2 后，破坏应变和拉伸强度分别从 22.1 ± 1.7% 和 105.7 ± 6.4 MPa 提高到 25.8 ± 0.7% 和 167.3 ± 9.1 MPa。韧性从 13.0 ± 4.1 MJ m-3 （约 102.3%）同时提高到 26.3 ± 0.8 MJ m-3。而 MXene/ANF（质量比为 50:50）的反射屏蔽效能（SER）下降了 ~ 10.8%。在二元 MXene/ANF（质量比为 60:40）中引入 MoS2 后，失效应变从 18.3 ± 1.9% 增加到 28.1 ± 0.7% （约 53.5%），SER 降低了约 22.2%，相应的 EMI SE 为 43.9 dB。MoS2 还带来了更高效的光热转换性能（约 45 至约 55 °C）。此外，MXene/ANF-MoS2 复合薄膜还具有优异的电热性能、快速升温（15 秒）、出色的循环稳定性（2、2.5 和 3 V）和长期稳定性（2520 秒）。结合高 MXene 含量带来的优异机械性能、电热性能和光热转换性能，EMI 屏蔽三元 MXene/ANF-MoS2 复合薄膜可应用于许多工业领域。这项研究拓宽了如何在高功能填料的情况下实现复合材料机械性能和多功能性之间的平衡。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.