Dispersion Characteristics of Surface-Modified Graphene Nanoplate in Organic Solvent for Development of Graphene / Epoxy Paint to Protect Concrete

콘크리트 보호용 그래핀/에폭시 도료개발을 위해 표면개질한 그래핀 나노플레이트의 유기용매 분산특성

This study aims to develop high durability graphene / epoxy paint for durability improvement of construction structure. For the development of graphene / epoxy coatings, first, graphene must remain stable in the polymer. Second, the integrity of graphene and polymer should be ensured. Accordingly, in order to obtain dispersibility, surface modification of graphene nanoplate(GnP) with CH and COOH functional groups and its dispersibility in organic solvents were investigated. Also, Fourier Transform Infrared Spectroscopy(FT-IR) analysis and Atomic Force Microscope(AFM) analysis were performed to confirm whether the functional groups were synthesized by surface modification. As a result, FT-IR and AFM analysis did not confirm the surface modification, but GnP was found to be stable when dispersed in an organic solvent.