▎ 摘　　要

NOVELTY - Preparing 3D printing organic-inorganic composite airgel comprises (i) adding inorganic nanomaterials to polyamic acid solution, stirring and mixing, and carrying out sol-gel treatment to obtain composite ink and (ii) freeze drying composite ink and heat imidizing to obtain final product. USE - The 3D printing organic-inorganic composite airgel is useful in thermal insulation materials, structural support materials, seawater desalination materials and electromagnetic shielding materials (all claimed). ADVANTAGE - The method: solves the problem of poor formability of current airgel materials, problem of complex molding process.