Cellulose aerogels decorated with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic interference shielding

doi:10.15302/J-FASE-2015082

Front. Agr. Sci. Eng.

2015, Vol. 2

Issue (4) : 341-346 https://doi.org/10.15302/J-FASE-2015082

RESEARCH ARTICLE

Cellulose aerogels decorated with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic interference shielding

Jian LI(

),Caichao WAN

Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China

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Abstract

Electromagnetic wave pollution has attracted extensive attention because of its ability to affect the operation of electronic machinery and endanger human health. In this work, the environmentally-friendly hybrid aerogels consisting of cellulose and multi-walled carbon nanotubes (MWCNTs) were fabricated. The aerogels have a low bulk density of 58.17 mg·cm⁻³. The incorporation of MWCNTs leads to an improvement in the thermal stability. In addition, the aerogels show a high electromagnetic interference (EMI) SE_total value of 19.4 dB. Meanwhile, the absorption-dominant shielding mechanism helps a lot to reduce secondary radiation, which is beneficial to develop novel eco-friendly EMI shielding materials.

Keywords cellulose aerogels carbon nanotubes electromagnetic interference shielding composites

Corresponding Author(s): Jian LI

Just Accepted Date: 21 December 2015 Online First Date: 11 January 2016 Issue Date: 19 January 2016

Cite this article:

Jian LI,Caichao WAN. Cellulose aerogels decorated with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic interference shielding[J]. Front. Agr. Sci. Eng. , 2015, 2(4): 341-346.

URL:

https://academic.hep.com.cn/fase/EN/10.15302/J-FASE-2015082
https://academic.hep.com.cn/fase/EN/Y2015/V2/I4/341

Fig.1 Low-magnification (a) and high-magnification (b) SEM images of MWCNT/CA, respectively

Fig.2 XRD patterns of MWCNT/CA and PCA

Fig.3 TG (a) and derivative TG (b) curves of MWCNT/CA and PCA, respectively

Fig.4 Schematic diagram of major mechanisms for EMI shielding

Fig.5 SE_total of MWCNT/CA and PCA as a function of frequency

Fig.6 SE_A (a) and SE_R (b) of MWCNT/CA and PCA as a function of frequency

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