title: Electromagnetic interference (EMI) shielding of single-walled carbon nanotube epoxy composites.
abstract: Single-walled carbon nanotube (SWNT)-polymer composites have been fabricated to evaluate the electromagnetic interference (EMI) shielding effectiveness (SE) of SWNTs. Our results indicate that SWNTs can be used as effective lightweight EMI shielding materials. Composites with greater than 20 dB shielding efficiency were obtained easily. EMI SE was tested in the frequency range of 10 MHz to 1.5 GHz, and the highest EMI shielding efficiency (SE) was obtained for 15 wt % SWNT, reaching 49 dB at 10 MHz and exhibiting 15-20 dB in the 500 MHz to 1.5 GHz range. The EMI SE was found to correlate with the dc conductivity, and this frequency range is found to be dominated by reflection. The effects of SWNT wall defects and aspect ratio on the EMI SE were also studied.
authors.affiliation: Key Laboratory of Functional Polymer Materials and Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Li
authors.forename: Yi
authors.initials: Y
authors.lastname: Huang
authors.forename: Feng
authors.initials: F
authors.lastname: Du
authors.forename: Xiaobo
authors.initials: X
authors.lastname: He
authors.forename: Xiao
authors.initials: X
authors.lastname: Lin
authors.forename: Hongjun
authors.initials: H
authors.lastname: Gao
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Ma
authors.forename: Feifei
authors.initials: F
authors.lastname: Li
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Chen
authors.forename: Peter C
authors.initials: PC
authors.lastname: Eklund
mesh_terms: D016477:Artifacts; D004574:Electromagnetic Fields; D004852:Epoxy Compounds / Q000737:chemistry*; D008422:Materials Testing; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000528:radiation effects; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D011874:Radiometry
chemical_list: D004852:Epoxy Compounds; D037742:Nanotubes, Carbon