▎ 摘　　要

NOVELTY - Processing of thermal insulation composite film involves: taking dispersant, anti-freezing propylene glycol and half the amount of defoamer BYK-019(RTM: solution of polyether modified polydimethylsiloxane), adding deionized water, dispersing at 600-800 rpm for 3-5 minutes, adding modified styrene-acrylic acid antibacterial emulsion, rutile titanium dioxide and silicon dioxide aerogel, dispersing at 2500-3000 rpm for 30-40 minutes, adding modified hollow glass beads, propylene glycol butyl ether as film-forming aid and other half of defoamer, dispersing 600-800 rpm for 10-20 minutes, adding carboxymethyl cellulose, stirring for 10-20 minutes, and filtering to obtain a solution; and evenly spin-coating on a surface of a base film to obtain a base film coated with solution, introducing into a vertical upward magnetic field with a magnetic field strength of 200-240 mT, naturally drying, heat-preserving, rinsing with deionized water, and drying. USE - Processing of thermal insulation composite film (claimed) used for outdoor building including high-rise building, residential building and movable building, for preventing adhesion of stains, bacteria and mold. ADVANTAGE - The method provides composite film, which has increased thermal insulation effect by adding modified hollow glass beads to the styrene-acrylic acid emulsion, excellent hydrophobicity due to the use of modified styrene-acrylic acid emulsion and antibacterial monomer, and improved anti-mold performance due to the use of graphene oxide-silver-iron(II,III) oxide having magnetic response properties and antibacterial functions, and prevents the adhesion of stains, bacteria and mold.