산화그래핀 층수에 따른 폴리스타이렌 표면 코팅 특성 = Coating Properties of Single and Multi-Layer Graphene Oxide on a Polystyrene Surface

다국어 초록 (Multilingual Abstract)

Graphene, a new material with various advantageous properties, has been actively used in various fields in recent years. Applications of graphene oxide are increasing in combination with other materials due to the different properties of graphene oxide, depending on the number of single and multiple layers of graphene. In this study, single-layer graphene oxide and multi-layer graphene oxide are spray coated on polystyrene, and the physicochemical properties of the coated surfaces are characterized using SEM, Raman spectroscopy, AFM, UV-Vis spectrophotometry, and contact angle measurements. In single-layer graphene oxide, particles of 20 ㎛ are observed, whereas a 2D peak is less often observed, and the difference in surface height increases according to the amount of graphene oxide. Adhesion increases with an increase in graphene oxide up to 0.375 mg, but decreases at 0.75 mg. In multi-layer graphene oxide, particles of 5 ㎛ are observed, as well as a 2D peak. According to the amount of graphene oxide, the height difference of the surface increases and the adhesive strength decreases. Both materials are hydrophilic, but single-layer graphene oxide has a hydrophilicity higher than that of multi-layer graphene oxide. We believe that multi-layer graphene oxide and single-layer graphene oxide can be implemented based on the characteristics that make them suitable for application.

참고문헌 (Reference)

1 K. S. Novoselov, 490 : 192-, 2012

2 C. G. Lee, 53 : 31-, 2013

3 L. M. Malard, 473 : 51-, 2009

4 A. Reina, 9 : 30-, 2009

5 A. Ambrosi, 114 : 7150-, 2014

6 양희연, "환원 그래핀 산화물을 코팅한 유리 섬유의 제조 및 특성 평가" 한국고분자학회 43 (43): 952-957, 2019

7 오필록, "폴리염화비닐/산화 그래핀 나노복합체 필름의 제조 및 특성 분석" 한국고분자학회 43 (43): 575-583, 2019

8 김현준, "트라이볼로지 관점에서의 그래핀 분자시뮬레이션 연구동향" 한국트라이볼로지학회 36 (36): 55-63, 2020

9 천영아, "산화그래핀 박막 코팅기술 개발 및 특성평가" 대한기계학회 39 (39): 463-469, 2015

10 염효열, "산화 그래핀과 나노 흑연이 폴리스티렌 나노복합재료의 유변물성 및 전기적 물성에 미치는 영향" 한국고분자학회 38 (38): 502-509, 2014

11 김인수, "다층박막적층법을 이용한 담수화용 그래핀 나노복합체 분리막 개발" 한국막학회 28 (28): 75-82, 2018

12 손장엽, "그래핀의 습윤성 및 제어기술" 한국세라믹학회 23 (23): 166-177, 2020

13 한이레, "Ti (10 nm)-buffered 기판들 위에 저온에서 직접 성장된 무 전사, 대 면적, 고 품질 단층 그래핀 특성" 한국재료학회 30 (30): 142-148, 2020

14 A.N. Kapitonov, "Characterization of Graphene Oxide Suspension for Fluorescence Quenching in DNA-Diagnostics" 한국재료학회 26 (26): 1-7, 2016