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EMI Shielding Efficiency of Recycled plastic/Hybrid Conductive filer Composites filled Electro Arc furnace Slag  

Kang Young-Goo (Department of Safety System Engineering, Hoseo University)
Song Jong-Hyeok (Graduate School of Venture, Hoseo University)
Publication Information
Journal of the Korean Society of Safety / v.19, no.4, 2004 , pp. 80-85 More about this Journal
Abstract
Electromagnetic interference(EMI) shielding characteristics of composite filled with Cu flake and carbon brush powder as hybrid conductive filler and EAF slag have been studied. The coaxial transmission line method of ASTM D4935-99 was used to measure the EMI Shielding effectiveness of composites as formulation in frequency rage $100\~1,000MHz$ The SE also increases with the increase in flier loading. The hybrid filler filled composites show higher SE compared to that of only Cu flake. The correlation between SE and conductivity of the various composites is also discussed. The results indicate that the composites having higher filler loading$({\geq}40wt.\%)$ can be used for the purpose of safety materials to protect hazardous electromagnetic interference.
Keywords
electromagnetic interference; Cu flake; shielding effectiveness; conductive filler; conductive composites;
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