▎ 摘　　要

NOVELTY - Performing ultraviolet protection involves mixing a suspension of graphene oxide with a colloidal solution of nano cellulose, controlling the addition amount of the two, so that the solid content of the solution after mixing is 5-10 wt.%, where graphene oxide accounts for 0.05-0.1 wt.% of the solid content of the solution. The mixed solution is subjected to homogenization and agitation treatment, and then defoamed by standing to obtain a uniformly dispersed protective film liquid. The obtained protective film liquid is pour into the mold, let stand at room temperature until the water is evaporated, and then dry it, and obtain a protective film after the water is completely removed. The protective film is directly wrap or cover the protective film on the surface of the object to protect. USE - Method for performing ultraviolet protection. ADVANTAGE - The method enables to perform ultraviolet protection, which has simple material, convenient to prepare and use, and high transmittance, and transparency and visibility of packaging material field.