Flexible multifunctional MXene/polyimide films with Janus structure for superior electromagnetic interference shielding

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-12-06 DOI:10.1007/s42114-024-01100-4

Lei Wang, Zelong Yang, Li Lang, Jingyi Men, Tiantian Gao, Qin Wang, Jiawei Cheng, Yuezhou Liu, Nan Zheng, Jie Liu, Xiaohui Ji

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引用次数: 0

Abstract

Flexible polymer-based films for electromagnetic interference (EMI) shielding are of great importance in wearable devices, sensors, and electronic communications. In this work, after synthesizing water-soluble polyamide acid (PAA), MXene/PAA films with Janus structure are prepared by layered solution casting method, and followed with thermally annealing to obtain MXene/polyimide (PI) films with Janus structure. The unique Janus structure provides MXene/PI films with the unique “conductive on one side and insulating on the other” property. When the MXene content is 50 wt%, the MXene/PI film shows EMI shielding effectiveness (SE) of 57 dB. Moreover, the MXene/PI film also presents outstanding electrothermal and photothermal conversion performances. The MXene/PI film quickly reaches stabilized temperature of 108 °C when the applied voltage is 2 V. Under simulated solar irradiation with the power density of 120 mW/cm², the surface stabilization temperature is to 87 °C. In addition, the MXene/PI films also show excellent structural stability and flame retardancy.

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.