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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 윤근병
- 발행연도
- 2018
- 저작권
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초록· 키워드
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Graphene have excellent mechanical and thermal properties. Research on the production of polymer/graphene nanocomposite using graphene is actively being carried out. Generally, in order to disperse graphene, graphene oxide is prepared through oxidation which is a chemical exfoliation method. And to improve the dispersibility of the graphene, various methods of modifying the surface of the GO have been studied. This improves compatibility with polymers. However, GO have many oxygen functional groups, there is a problem that the characteristics of graphene are declined. To compliment this, reduction the modified graphene oxide through solvothermal reduction. Also, there are various methods to disperse graphene, such as melt blend, solution blend, in situ polymerization and reactor mixing into polymers.
In this research, Octadecylamine(ODA) was modified on the surface of GO and rGO-ODA was obtained by reduction of GO-ODA. The obtained rGO-ODA was put into a reactor in which polymerization of ethylene-propylene copolymer is completed and dispersed by a reactor mixing method. Diverse graphene amounts of EP/rGO-ODA nanocomposites were prepared by varying the amount of loaded rGO-ODA.
The structure of rGO-ODA was confirmed by FT-IR, Raman spectroscopy and XRD analysis. The thermal stability of rGO and rGO-ODA was compared using TGA.
The mechanical properties of EP nanocomposites were measured by UTM. Modulus increased without decreasing elongation up to 2wt% graphene content. The modulus of 2wt% EP/rGO-ODA increased by 40%.
As a result, it is considered that the reactor mixing is an effective method by dispersing graphene modified an alkyl group in ethylene-propylene copolymer.
In this research, Octadecylamine(ODA) was modified on the surface of GO and rGO-ODA was obtained by reduction of GO-ODA. The obtained rGO-ODA was put into a reactor in which polymerization of ethylene-propylene copolymer is completed and dispersed by a reactor mixing method. Diverse graphene amounts of EP/rGO-ODA nanocomposites were prepared by varying the amount of loaded rGO-ODA.
The structure of rGO-ODA was confirmed by FT-IR, Raman spectroscopy and XRD analysis. The thermal stability of rGO and rGO-ODA was compared using TGA.
The mechanical properties of EP nanocomposites were measured by UTM. Modulus increased without decreasing elongation up to 2wt% graphene content. The modulus of 2wt% EP/rGO-ODA increased by 40%.
As a result, it is considered that the reactor mixing is an effective method by dispersing graphene modified an alkyl group in ethylene-propylene copolymer.
목차
Ⅰ. 서론 1Ⅱ. 실험 41. 시약 42. rGO-ODA의 제조 52.1 그래핀 옥시드의 제조 52.2 GO-ODA의 합성 52.3 rGO-ODA의 제조 53. 에틸렌-프로필렌 공중합체/개질 그래핀 옥시드 나노복합체 제조 83.1 에틸렌-프로필렌 공중합 83.2 반응기 혼합 방식에 의한 EP/rGO-ODA 나노복합체 제조 84. 분석 11Ⅲ. 결과 및 고찰 131. 개질된 그래핀 유도체 합성 132. Reactor mixing을 통한 EP/rGO-ODA 나노복합체 특성 212.1 열적 특성 212.2 기계적 물성 282.3 형태학적 특성 34Ⅳ. 결론 37Ⅴ. 참고문헌 39Ⅵ. 초록 (영문) 46
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