Kim, Jae Hoo Kwon, Jiwon Kim, Jaewoo 2024-01-12T02:44:23Z 2024-01-12T02:44:23Z 2023-11-06 2023-11-08 https://pubs.kist.re.kr/handle/201004/76346 In this study, a conductive polymer composite (CPC) with segregated structure was fabricated, resulting in a low electrical percolation threshold in electrical conductivity and improved electromagnetic shielding performance compared to a composite in which the conductive filler is uniformly dispersed within the polymer matrix. The polymer matrix used was the widely recognized engineering plastic, polyamide 6 (PA6), and the conductive filler employed was graphene nanoplatelets (GNP) at various weight percentages (0.3/0.7/3/5 wt%). To create a segregated structure, core-shell structured GNP/PA6 particles were manufactured using mechano-fusion process, and subsequently, the specimens were fabricated via hot pressing. Electrical conductivity and permittivity increased, resulting in about two-fold increase in EMI shielding performance (76 to 240 %) compared to homogeneously dispersed CPC. Korean 한국복합재료학회 Improving Electromagnetic Interference Shielding Performance of Conductive Polymer Composite through Segregated Structure 격리된 구조를 통한 전도성 고분자 복합체의 전자기파 차폐 성능 향상 Conference 2 2023 한국복합재료학회 추계 학술대회 2023 한국복합재료학회 추계 학술대회 KO 거제 소노캄 2023-11-08 2023년도 추계한국복합재료학회 프로시딩