▎ 摘　　要

NOVELTY - A self-assembled laminated infrared film material is obtained by laminating a layered double hydroxide nanosheet and single layer of graphene oxide alternately. The number of layers in self-assembled laminated infrared film material is 2-40. The self-assembled laminated infrared film material has thickness of 2-200 nm. USE - Self-assembled laminated infrared film material (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of self-assembled laminated infrared film material, which involves adding carboxylic acid solution of metallic ion (M1) and carboxylic acid solution of metallic ion (M2) to reactor and reacting for 4-10 hours under nitrogen atmosphere, adding inorganic alkaline aqueous solution, hydrothermal crystallizing for 48-72 hours, cooling, filtering, washing deionized water, dispersing layered double hydroxide by deionized water, immersing substrate in mixed solution of methanol and concentrated hydrochloric acid and adding concentrated sulfuric acid and heating modified substrate at room temperature for 5-15 minutes to obtain layered double hydroxide assembling substrate, adding aqueous solution of inorganic alkali to layered double hydroxide assembling substrate and assembling film materials.