Graphene modified triazine ultraviolet light absorber and preparation method thereof

The invention provides a graphene modified triazine ultraviolet light absorber and a preparation method thereof, and the preparation method comprises the following steps: taking THF as a solvent, adding cyanuric chloride into THF, stirring and dissolving for later use; the preparation method comprises the following steps: taking a certain amount of graphene oxide, sodium hydroxide and THF to prepare THF slurry, dropwise adding the prepared THF and cyanuric chloride solution into the THF slurry while stirring, heating to 30-40 DEG C, reacting for 2-8 hours, steaming out THF, adding 10 parts of water, filtering, washing a filter cake with deionized water for 2-3 times, and carrying out vacuum drying at 80 DEG C to obtain a product I; taking a certain amount of the product I, adding chlorobenzene into the product I, then adding a certain amount of anhydrous AlCl3 and resorcinol, reacting at 70-80 DEG C for 3-8 hours, adding ice water with the same amount as the solvent, heating and refluxing, separating out o-ch