Abstract
Lightweight materials with high electrical conductivity and hydrophobic mechanical properties are ideal materials for electromagnetic interference (EMI) shielding. Herein, the conductive composites with great EMI shielding effectiveness (SE) were successfully obtained by introducing multi-walled carbon nanotube (CNT) and polydimethylsiloxane (PDMS) based on the original structure of natural wood (NW). CNT@PDMS/NW composites were prepared via vacuum-pulse impregnation method and characterized by Fourier transform infrared (FTIR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) patterns, hydrophobicity analysis, and EMI shielding performance. As demonstrated, CNT nanosheets were successfully inserted into wood matrices, and hydrogen bonding between CNT nanosheets and cellulose nanofibers induced the fabrication of CNT@PDMS/NW composites. CNT@PDMS/NW composites exhibited excellent EMI SE values of 25.2 dB at the X-band frequency.
Award Identifier / Grant number: No. 2016HXKFCLXY001
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors are grateful for the financial support through a special fund from the Beijing Common Construction Project and Beijing Forestry University (grant no. 2016HXKFCLXY001).
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Conflict of interest statement: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/hf-2021-0132).
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Articles in the same Issue
- Frontmatter
- Original Articles
- Effect of solvent type on the formation rate of benzyl cation intermediate in acidolysis of lignin
- Evaluating efficacy of different UV-stabilizers/absorbers in reducing UV-degradation of lignin
- Inhibiting wood-water interactions by hydrothermal hemicellulose extraction combined with furfurylation
- Dimensional stability and decay resistance of clay treated, furfurylated, and clay-reinforced furfurylated poplar wood
- Improving the stability of beech wood with polyester treatment based on malic acid
- “Green technology” processing of pine (Pinus sylvestris L.) and larch (Larix sibirica Ledeb.) wood greenery to produce bioactive extracts
- Valorization of waste bark for biorefineries: chemical characterization of Eucalyptus camaldulensis inner and outer barks
- Short Notes
- Determination of chemical shifts in 6-condensed syringylic lignin model compounds
- CNT@PDMS/NW composite materials with superior electromagnetic shielding
Articles in the same Issue
- Frontmatter
- Original Articles
- Effect of solvent type on the formation rate of benzyl cation intermediate in acidolysis of lignin
- Evaluating efficacy of different UV-stabilizers/absorbers in reducing UV-degradation of lignin
- Inhibiting wood-water interactions by hydrothermal hemicellulose extraction combined with furfurylation
- Dimensional stability and decay resistance of clay treated, furfurylated, and clay-reinforced furfurylated poplar wood
- Improving the stability of beech wood with polyester treatment based on malic acid
- “Green technology” processing of pine (Pinus sylvestris L.) and larch (Larix sibirica Ledeb.) wood greenery to produce bioactive extracts
- Valorization of waste bark for biorefineries: chemical characterization of Eucalyptus camaldulensis inner and outer barks
- Short Notes
- Determination of chemical shifts in 6-condensed syringylic lignin model compounds
- CNT@PDMS/NW composite materials with superior electromagnetic shielding