▎ 摘　　要

NOVELTY - Preparation of paint, involves adding graphite and water to beaker, stirring to obtain graphene oxide solution, adding chitosan and water to beaker, stirring to obtain chitosan solution, adding graphene oxide solution, ethylene diamine and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride to reactor, condensing, cooling reactor, adding chitosan solution to cooled mixture, reacting, filtering, washing filtrate, freeze-drying to obtain aerogel, crushing aerogel, adding filler, pigment and water to crushed powder, stirring, mixing with aqueous emulsion and defoamer, and dispersing. USE - Preparation of paint for interior. ADVANTAGE - The method enables preparation of paint with high efficiency. The paint effectively adsorbs and removes formaldehyde. DETAILED DESCRIPTION - Preparation of paint, involves adding 0.5-1 g graphite and 200-500 mL deionized water to beaker, ultrasonically processing for 10-30 minutes to obtain graphene oxide aqueous solution, adding 5-10 g chitosan and 50-100 mL deionized water to beaker, stirring mechanically at 100-300 rpm for 1-2 hours to obtain chitosan aqueous solution, adding 200-500 mL graphene oxide solution, 300-500 mL ethylene diamine and 0.05-0.1 g 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride to reactor, condensing at 90-100 degrees C for 3-5 hours, cooling reactor to 20-30 degrees C, adding 50-100 mL chitosan aqueous solution to cooled mixture, reacting for 3-5 hours, filtering, washing filtrate 2-3 times, freeze-drying at (-50)-10 degrees C for 24-48 hours to obtain chitosan-modified graphene aerogel, placing chitosan-modified graphene aerogel in high-speed mill, crushing for 10-25 minutes, adding 10-15 g filler, 10-15 g titanium dioxide, 10-20 g pigment and deionized water to crushed powder, stirring at 300-500 rpm for 10-30 minutes, mixing with 35-50 g aqueous emulsion, 1-5 g chitosan modified graphene aerogel and 0.1-1 g defoamer, blending for 30-50 minutes and dispersing evenly.