关键词: 氧化石墨烯;分散方法;性能;机理分析

Abstract: Graphene oxide ( GO) has a two-dimensional layered structure with a variety of active oxygen-containing groups on its surface .GO not only features small particle size , large specific surface area , high surface energy and large ratio surface atoms , but also has excellent electrical conductivity , thermal conductivity , mechanical and optical properties .The application of GO in cement based materials has become a hot spot because of its unique structure and excellent properties , which can improve the performance of cement based materials .This paper summarizes the preparation and dispersion methods of GO, concludes the performance influence of GO on the cement based composite materials and mechanism;discusses the problems in the study of cement-based materials and the development trend of GO.

Key words: graphene oxide;dispersion method;performance;mechanism