Preparation method of functionalized graphene oxide in-situ reinforced PVB material and product

The invention discloses a functional graphene oxide modified PVB (polyvinyl butyral) material. A preparation method of the functional graphene oxide modified PVB material comprises the following steps: 1) stirring and mixing polyvinyl alcohol, deionized water and an antioxidant; (2) sequentially adding an emulsifier and functionalized graphene oxide into the system, homogenizing and emulsifying at 15-25 DEG C for 1-1.5 hours, sequentially adding n-butyraldehyde and hydrochloric acid, controlling the temperature of the system to be 10-20 DEG C, and maintaining the temperature for 1-2 hours; (3) heating the system to 60-70 DEG C at a constant speed, keeping the temperature for 1-2 hours, adding sodium hydroxide to adjust the pH value to 4, keeping the temperature for 1-2 hours, washing with water, adding sodium hydroxide to adjust the pH value to 13, magnetically stirring for 2-8 hours, washing with water to be neutral, and centrifugally drying; and re-dissolving the dried sample into the ethanol solvent, stirr