화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 고분자 가공/복합재료
제목 A Flexible Electromagnetic Interference Shielding Film Based on Functional Reduced Graphene Oxide/Cellulose Nanofiber
초록 A flexible electromagnetic interference (EMI) shielding film is prepared using functional reduced graphene oxide (FrGO) and cellulose nanofiber (CNF) and its mechanical and electrical properties are examined. Graphene oxide is mixed with aqueous CNF solution and then reduced by a reducing agent containing both hydroxyl and amino groups to prepared FrGO. Borax and poly(ethylene oxide) are used as a crosslinking agent between hydroxyl group in FrGO and that in CNF and a polymeric binder, respectively. Interestingly, FrGO prepared in this study exhibits outstanding dispersibility in water and the free-standing FrGO/CNF film shows excellent flexibility and good conductivity. These results are attributed to the strong intermolecular hydrogen bond between FrGO and CNF and also the unique layered structure of connected FrGOs in the matrix.
저자 김용주1, 홍평화2, 노아현1, 이도연1, 홍성우2, 고민재1
소속 1한양대, 2생산기술(연)
키워드 cellulose nanofiber; reduced graphene oxide; flexible film; EMI shielding
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