하이브리드 전도성 Filler 섬유강화 복합재료의 전자파 차폐효과

The main objective of this study was to investigate fiber reinforced composite materials (FRCM) with electromagnetic shielding characteristics using aluminum (Al) film and copper (Cu) meshes. This study investigated the electromagnetic interference (EMI) shielding effectiveness (SE) of fiber reinforced composites filled with Al film, Cu meshes, and nano carbon black as hybrid conductive fillers to provide the electromagnetic shielding property of the fiber reinforced composites. The coaxial transmission line method of ASTM D 4935-89 was used to measure the EMI shielding effectiveness of composites in the frequency range of 300 ㎒ to 1.5 ㎓. The variations of SE of FRCM with Al film fine Cu, and general Cu meshes are described. The results indicate that the FRCM having Al film exhibited up to 75 ㏈ of SE at 1.5 ㎓.