| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Reduced graphene oxide grafted with amine-functionalized NiO/ZnO for advanced attenuation of electromagnetic wave |
| 초록 |
The explosive wireless technology by utilizing electronic systems in civil and military application unavoidably generate the pollution known as the electromagnetic interference, so effective absorbers are highly in demands. In this work, a hybrids constructed from reduced graphene oxide (rGO) and amine-functionalized NiO/ZnO was prepared via in situ amidation reaction. The rGO sheets were found to successfully anchor on NiO/ZnO particles. The hybrid displayed an excellent microwave absorbing performance in polystyrene matrix at 30 weight percentage. The minimum reflection loss reached up to -42.5 dB at 13.2 GHz at the coating thickness of only 2.15 mm with a effective bandwidth of 4.5 GHz. The grafting of rGO on NiO/ZnO particles not only induced a high specific surface area, but also benefited synergistic effects for better electromagnetic wave dissipation due to the well-matching of dielectric loss and magnetic loss components caused by their intrinsic properties. |
| 저자 |
QUYEN VU THI1, 손대원2
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| 소속 |
1Hanyang Univ., 2한양대 |
| 키워드 |
reduced graphene oxide; amine-functionalized NiO/ZnO; EMI attenuation
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| E-Mail |
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