Electromagnetic wave absorption properties of rare earth element doped multi-walled carbon nanotubes/polyvinyl chloride composites

Cui Ling Hou, Tie Hu Li, Ting Kai Zhao, Yong Shuai Ma, Wen Juan Zhang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Multiwalled carbon nanotubes (MWCNTs) doped respectively La(NO3)3 and Ce(NO3)3 as absorber and polyvinyl chloride (PVC) as matrix were used to fabricate MWCNT/PVC composites. The microstructure and micromorphology of MWCNTs doped respectively La(NO3)3 and Ce(NO3)3 were investigated using transmission electron microscope (TEM) and X-ray diffraction (XRD). The electromagnetic wave absorption properties and pyrolysis behaviour of MWCNT/PVC, MWCNT-La(NO3)3/PVC and MWCNT-Ce(NO3)3/PVC composites were measured by a network analyzer and simultaneous thermal analysis. The results indicated that the electromagnetic wave absorbing properties of MWCNT/PVC composites were substantially improved after doping with a suitable amount of rare earth element in the frequency range from 2 to 18GHz, and the pyrolysis behaviour amost did not changed. In the range of R<-10dB of the reflection losses, the absorbing bandwidths of MWCNT-Ce(NO3)3/PVC composites was narrower (about 5.4 GHz) than that of MWCNT-La(NO3)3/PVC composites (about 5.6 GHz), and the absorption band and peak value shifted to the higher frequency region. It is favorable to improve the electromagnetic wave absorption properties of MWCNT/PVC composites in a high frequency region.

Original languageEnglish
Pages (from-to)1741-1744
Number of pages4
JournalGongneng Cailiao/Journal of Functional Materials
Volume44
Issue number12
DOIs
StatePublished - 30 Jun 2013

Keywords

  • Electromagnetic wave absorbing properties
  • Multiwalled carbon nanotubes
  • Polyvinyl chloride
  • Rare earth

Fingerprint

Dive into the research topics of 'Electromagnetic wave absorption properties of rare earth element doped multi-walled carbon nanotubes/polyvinyl chloride composites'. Together they form a unique fingerprint.

Cite this