NDLI: Electrical conductivity and electromagnetic interference shielding characteristics of multiwalled carbon nanotube filled polyacrylate composite films

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Electrical conductivity and electromagnetic interference shielding characteristics of multiwalled carbon nanotube filled polyacrylate composite films

Content Provider	Semantic Scholar
Author	Li, Yong Chen, Changxin Zhang, Song Ni, Yuwei Huang, Jie
Copyright Year	2008
Abstract	Multiwalled carbon nanotubes (MWCNTs) were homogeneously dispersed in pure acrylic emulsion by ultrasonication to prepare MWCNT/polyacrylate composites applied on building interior wall for electromagnetic interference (EMI) shielding applications. The structure and surface morphology of the MWCNTs and MWCNT/polyacrylate composites were studied by field emission scanning microscopy (FESEM) and transmission electron microscopy (TEM). The electrical conductivity at room temperature and EMI shielding effectiveness (SE) of the composite films on concrete substrate with different MWCNT loadings were investigated and the measurement of EMI SE was carried out in two different frequency ranges of 100–1000 MHz (radio frequency range) and 8.2–12.4 GHz (X-band). The experimental results show that a low mass concentration of MWCNTs could achieve a high conductivity and the EMI SE of the MWCNT/polyacrylate composite films has a strong dependence on MWCNTs content in both two frequency ranges. The SE is higher in X-band than that in radio frequency range. For the composite films with 10 wt.% MWCNTs, the EMI SE of experiment agrees well with that of theoretical prediction in far
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://yfzhang.sjtu.edu.cn/en/publications/2008/17%20Electrical%20conductivity%20and%20electromagnetic%20interference%20shielding%20characteristics%20of%20multiwalled%20carbon%20nanotube%20filled%20polyacrylate%20composite%20films.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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