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Materials 2016, 9(7), 540; doi:10.3390/ma9070540

Effects of Carbonization Temperature and Component Ratio on Electromagnetic Interference Shielding Effectiveness of Woodceramics

1
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
2
Department of Electrical Engineering, University of North Texas, Denton, TX 76203, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Dinesh Agrawal
Received: 24 May 2016 / Revised: 28 June 2016 / Accepted: 30 June 2016 / Published: 2 July 2016
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Abstract

Woodceramics were fabricated in a vacuum through carbonization of wood powder impregnated with phenol formaldehyde (PF) resin. The effects of carbonization temperature and mass ratio of wood/resin on electromagnetic interference (EMI) shielding effectiveness (SE) and morphology of woodceramics were explored. The PF resin made wood cell walls have the characteristics of glassy carbon. Wood axial tracheid and ray cells were filled with more glassy carbon by increasing addition of PF resin. Moreover, the increase of carbonization temperature was beneficial to improving SE. Woodceramics (mass ratio 1:1) obtained at 1000 °C presented a medium SE level between 30 MHz and 1.5 GHz. View Full-Text
Keywords: woodceramics; electromagnetic interference; shielding effectiveness woodceramics; electromagnetic interference; shielding effectiveness
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tao, Y.; Li, P.; Shi, S.Q. Effects of Carbonization Temperature and Component Ratio on Electromagnetic Interference Shielding Effectiveness of Woodceramics. Materials 2016, 9, 540.

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