Constructing efficient electromagnetic interference shielding and Joule heating wood by crosslinking MXene nanosheets with a regenerated cellulose networkOA
MXenes have emerged as highly promising candidates for electromagnetic interference(EMI)shielding.However,achieving strong interfacial adhesion of MXene nanosheets within substrate materials without applying adhesives remains challenging.To address the demand for functional coatings with integrated wear resistance,we fabricated a regenerated wood-MXene(RW-M)by creating a dense,three-dimensional(3D)nanocellulose network from partially dissolved wood surface cellulose to anchor MXene nanosheets.The ingenious structural design strategy via in-situ dissolved and regenerated of delignified wood surface cellulose constructs a cross-linked nanocellulose network,providing rich hydrogen binding sites for functional MXene nanosheets.After densification,the MXene nanosheets bond tightly with the delignified wood surface,significantly enhancing the mechanical stability.The composite achieves an exceptional EMI shielding effectiveness(SE)of 45 dB in the X-band(8.2–12.4 GHz)at a thin thickness of 0.35 mm,and maintains a stable SE of 39–41 dB after 1000 abrasion cycles,which is attributed to the robust interfacial bonding and mechanical interlocking.Moreover,the RW-M also exhibits outstanding Joule heating performance,reaching 115°C with 5 V of applied voltage.This work provides a green strategy for designing EMI shielding materials,showing great potential for applications in decoration,building,and advanced thermal management systems.
Peiru Wang;Xiaofei Dong;Zixuan Yang;Xueqin Fan;Yingying Liu;Yaoxing Wang;Jianfu Tang;Peng Jiao;Xueqi Li;Quankuo Zhang;Xinyuan Zhang;Ran Yin;Wentao Gan
Key Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,ChinaKey Laboratory of Bio-based Material Science&Technology(Ministry of Education),Northeast Forestry University,Harbin 150040,China
通用工业技术
regenerated celluloseMXeneelectromagnetic interference(EMI)shieldingJoule heatingwear resistance
《Nano Research》 2026 (5)
P.1105-1115,11
support from the National Key R&D Program of China(No.2023YFD2201404)the Fundamental Research Funds for the Central Universities(No.2572025JT02)the key project of Natural Science Foundation of Heilongjiang Province(No.ZD2024C003)China Postdoctoral Science Foundation(No.2020M681067)the Special Funding Project of Postdoctoral in Heilongjiang Province(No.LBH-TZ2001)。
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