期刊
CELLULOSE
卷 29, 期 10, 页码 5883-5893出版社
SPRINGER
DOI: 10.1007/s10570-022-04609-3
关键词
Wood; MXene; Electromagnetic interference shielding; Waterproof
资金
- Science and Technology Program of Guangzhou [202103000011]
- Forestry Administration of Guangdong Province [2020KJCX008]
The study focuses on the development of sustainable and lightweight electromagnetic interference (EMI) shielding materials using MXene-coated wood (M/wood). M/wood demonstrates high electrical conductivity, excellent EMI shielding effectiveness, and fire retardancy. Coating waterborne acrylic resin on M/wood enhances environmental stability and improves EMI shielding performance stability after water-soaking and drying testing.
Increasing electromagnetic pollution calls for electromagnetic interference (EMI) shielding materials, especially sustainable, lightweight, and environmentally stable, biomass-based materials. MXene-coated wood (M/wood) is prepared by simply spraying MXene sheets on the wood surface. Varying this spray coating manipulates the shielding performance and its application to different wood species. The M/wood exhibits high electrical conductivity (sheet resistance is only 0.65 Omega/sq) with an excellent EMI shielding effectiveness of 31.1 dB at 8.2 similar to 12.4 GHz and is also fire retardant. Furthermore, waterborne acrylic resin (WA) is coated on M/wood to enhance environmental stability. The WA coating improves EMI shielding performance stability after water-soaking and drying testing and prevents the peeling of MXene from wood. These satisfactory properties of WA-M/wood and the facile manufacturing approach promote the feasibility of wood-based EMI shielding materials. [GRAPHICS] .
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