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MXene@Wood composite with absorption-dominated electromagnetic interference shielding performance through structural modification
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DOI：10.1016/j.indcrop.2024.119832.png)
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Wood-based materials possess unique porous structure that are sustainable and green, showing great potential in many applications. Herein, MXene@Wood composites were prepared for electromagnetic interference shielding and thermal insulation, and their pore structure is monitored by compression of wood. Benefiting from the heterogeneous interface between MXene and the wood surface to enhance interfacial polarization, MXene@Wood presents a superior impedance match in cross-section compared to tangential-section. In the cross-section, MXene@Wood at a 30 % compression ratio achieves an absorption coefficient of 0.73 and a shielding effectiveness of 41.78 dB. After a 30 % compression ratio, MXene@Wood in cross-section achieves an absorption coefficient of 0.73 and a shielding effectiveness of 41.78 dB, it also exhibits wave absorption performance with a minimum reflection loss of -15.11 dB at 2 mm, meeting the commercial requirements. The effect of the pore structure of wood on shielding performance is further verified by finite element analysis. Furthermore, MXene@Wood also demonstrates excellent thermal insulation properties benefit to the reduced gas-phase heat transfer. This sustainable composite with electromagnetic shielding performance and thermal insulation properties largely expands the application area of wood.
Keyword:
Wood
MXene
Electromagnetic interference shielding
Absorption-dominated
期刊
IF:
6.2
论文数:
1.9W
被引数:
6.8W
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