Bubble dispersion method for preparing graphene/epoxy resin composite materials

The invention belongs to the technical field of nanocomposite, and particularly relates to a bubble dispersion method for preparing graphene/epoxy resin composite materials. The method includes the steps that gas of proper pressure and flow is guided to a premixed material of graphene/epoxy resin, clustering of graphene is scattered through graphene particles, generated in the bubble generation and floating processes, in a volume expansion tensioning resin base body, and stretching of the graphene particles is promoted. Under the situation that dispersing agents are not used, the graphene is evenly dispersed in epoxy resin through relative motion of bubble wall films in the bubble generation, growing and breaking processes by means of a physical method, the dispersion process is simple in technology and convenient to control, the dispersion effect is good, popularization of the technology is achieved easily, and the graphene/epoxy resin composite materials excellent in performance can be obtained. The method is less in energy consumption, low in cost and free of pollution, factory mass production is achieved easily, and chemical properties of the obtained composite materials is obviously promoted.