화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 고분자가공/복합재료
제목 A novel hybrid poly(aniline-co-pyrrole) reduced graphene oxide coated silica particles applying on electromagnetic interference shielding
초록 In this work, a novel nanocomposites of poly(aniline-co-pyrrole) reduced graphene oxide coated silica particles was prepared by in-situ pre-polymerization method and characterized. The molar ratio of component monomers aniline:pyrrole was 1:3 and the pre-polymerization time was 30 min before the in-situ polymerization of the copolymer nanocomposites occured. The results revealed that the electromagnetic shielding performance of copolymer nanocomposites was significantly improved compared to that of component polymer nanocomposite. The minimum reflection loss (RLmin) of P(An-co-Py)/RGO@SiO2, PANi/RGO@SiO2 and PPy/RGO@SiO2 in Ku band were -40.6 dB, -38.9 dB and -13.9 dB, respectively. The effective absorption bandwidth of copolymer P(An-co-Py)/RGO@SiO2 was 5.5 GHz from 12.GHz to 17.8 GHz. Meanwhile, the effective aborption bandwidth of component polymer nanocomposites such as PANi/RGO@SiO2 was only 2.2 GHz from 15.8 GHz to 18GHz.
저자 QUYEN VU THI1, 손대원2
소속 1Hanyang Univ., 2한양대
키워드 poly(aniline-co-pyrrole); reduced graphene oxide; electromagnetic microwave shielding
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