화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터)
권호 41권 1호
발표분야 고분자가공/복합재료
제목 Electromagnetic interference shielding performance of FeCo hollow fiber/EPDM composites
초록 Electromagnetic interference shielding composite with low density (1.18 g/cm3) was fabricated using electroless plated FeCo 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 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.
저자 최재령, 김원정, 박가현, 최우혁, 조승찬, 정병문, 이상관, 이상복
소속 재료(연)
키워드 Electromagnetic interference shielding composite; electroless plating; hollow fiber; sheet resistance; electromagnetic interference shielding effectiveness
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