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Characterization of FeCo Magnetic Metal Hollow Fiber/EPDM Composites for Electromagnetic Interference Shielding
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  • Journal title : Composites Research
  • Volume 28, Issue 6,  2015, pp.333-339
  • Publisher : The Korean Society for Composite Materials
  • DOI : 10.7234/composres.2015.28.6.333
 Title & Authors
Characterization of FeCo Magnetic Metal Hollow Fiber/EPDM Composites for Electromagnetic Interference Shielding
Choi, Jae Ryung; Jung, Byung Mun; Choi, U Hyeok; Cho, Seung Chan; Park, Ka Hyun; Kim, Won-jung; Lee, Sang-Kwan; Lee, Sang Bok;
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Electromagnetic interference shielding composite with low density () was fabricated using electroless plated FeCo magnetic metal hollow fibers and ethylene propylene diene monomer (EPDM) polymer. Aspect ratio of the fibers were controlled and their hollow structure was obtained by heat treatment process. The FeCo hollow fibers were then mixed with EPDM to manufacture the composite. The higher aspect ratio of the magnetic metal hollow fibers resulted in high electromagnetic interference shielding effectiveness (30 dB) of the composite due to its low sheet resistance (30 ohm/sq). The enhanced electromagnetic interference shielding effectiveness was mainly attributed to the formation of conducting network over the percolation threshold by high aspect ratio of fibers as well as an increase of the reflection loss by impedance mismatch owing to low sheet resistance, absorption loss, and multiple internal reflections loss.
Electromagnetic interference shielding composite;Electroless plating;Magnetic metal hollow fiber;Sheet resistance;Electromagnetic interference shielding effectiveness;
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