High Frequency Electromagnetic Shielding by Biochar-Based Composites
Abstract
:1. Introduction
2. Materials and Methods
2.1. Biochar, Matrices, and Composites Preparation
2.2. Biochar Characterization
2.3. Microwave Characterization
2.4. Electromagnetic Shielding Efficiency
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Material | Thickness (mm) | SE (dB) | Frequency (GHz) | Ref. |
---|---|---|---|---|
Flexible graphite flakes | not reported | 130 | 1.0 | [12] |
15 wt.% of Carbon nanotubes into ABS matrix | 1.1 | 50 | 8.2 | [13] |
15 wt.% of carbon nanofibers into ABS matrix | 1.1 | 35 | 8.2 | [13] |
15 wt.% of carbon black into ABS matrix | 1.1 | 21 | 8.2 | [13] |
18 wt.% of carbon black into EVA matrix | 2 | 18 | 8.2 | [14] |
3 layers of epoxy laminated carbon fibers | 3 | 21 | 1.0 | [15] |
0.4 wt.% of carbon fibers in cementitious matrix | 180 | 42 | 1.0 | [16] |
8 wt.% of commercial biochar in cementitious matrix | 180 | 15 | 10.0 | [2] |
20 wt.% of sludge biochar in cementitious matrix | 180 | 10 | 10.0 | [17] |
80 wt.% of biochar in UHDPE matrix | 140 | 49 | 5.0 | [18] |
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Torsello, D.; Bartoli, M.; Giorcelli, M.; Rovere, M.; Arrigo, R.; Malucelli, G.; Tagliaferro, A.; Ghigo, G. High Frequency Electromagnetic Shielding by Biochar-Based Composites. Nanomaterials 2021, 11, 2383. https://doi.org/10.3390/nano11092383
Torsello D, Bartoli M, Giorcelli M, Rovere M, Arrigo R, Malucelli G, Tagliaferro A, Ghigo G. High Frequency Electromagnetic Shielding by Biochar-Based Composites. Nanomaterials. 2021; 11(9):2383. https://doi.org/10.3390/nano11092383
Chicago/Turabian StyleTorsello, Daniele, Mattia Bartoli, Mauro Giorcelli, Massimo Rovere, Rossella Arrigo, Giulio Malucelli, Alberto Tagliaferro, and Gianluca Ghigo. 2021. "High Frequency Electromagnetic Shielding by Biochar-Based Composites" Nanomaterials 11, no. 9: 2383. https://doi.org/10.3390/nano11092383