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A Study on Permittivity of Multi-walled Carbon nanotube/Epoxy Composites  

이상의 (한국과학기술원 기계공학과 항공우주공학)
박기연 (한국과학기술원 기계공학과 항공우주공학)
김천곤 (한국과학기술원 기계공학과 항공우주공학)
한재흥 (한국과학기술원 기계공학과 항공우주공학)
Publication Information
Composites Research / v.17, no.3, 2004 , pp. 38-44 More about this Journal
Abstract
The electromagnetic interference (EMI) shielding is very essential for commercial and military purposes. We fabricated multi-walled carbon nanotube (MWNT)/epoxy composites and studied the electromagnetic characteristics of the composites before we study the characteristics of MWNT-added glass fiber-reinforced composites. After setting up the fabrication process, we measured the permittivity of MWNT/epoxy composites with process variables and MWNT concentrations in X-band (8.2GHz~12.4GHz). We also observed re-aggregation phenomenon of MWNTs and investigated its effect on the permittivity. The permittivity of the composites was influenced by the degree of dispersion of MWNTs and increased almost linearly as MWNT concentration increases.
Keywords
multi-walled carbon nanotube; MWNT/epoxy composite; electromagnetic characteristics; permittivity; X-band(8.2~12.4 GHz);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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