▎ 摘　　要

NOVELTY - Preparation of carbon nanotube-modified aqueous polyurethane adhesive coating involves mixing carbon nanotubes, graphene sheet, triphenylamine, 3,4,5-trifluorophenylboronic acid and protonic acid, drying to obtain carboxylated carbon nanotube-modified graphene sheet, preparing polyurethane prepolymer by reacting polytetramethylene ether glycol, isophorone diisocyanate with dibutyltin dilaurate catalyst, adding 2-sulfobenzoic anhydride, graphene sheet, chain extender, acetone, D-panthenol, 2,4,6-hydroxybenzoic acid, triethylamine and benzamide and reacting. USE - Preparation of carbon nanotube-modified aqueous polyurethane adhesive coating for walls, furniture, appliances, plastic, glass, paper and textiles. ADVANTAGE - The method enables environmentally-friendly and economical preparation of carbon nanotube-modified aqueous polyurethane adhesive coating. DETAILED DESCRIPTION - Preparation of carbon nanotube-modified aqueous polyurethane adhesive coating involves mixing certain amount of carbon nanotubes, graphene sheet, triphenylamine, 3,4,5-trifluorophenylboronic acid and protonic acid, reacting at 60-80 degrees C, ultrasonically-processing at power of 400 Watts and frequency of 80 kHz for 2-5 hours, diluting with 350 ml deionized water, suction-filtering, repeatedly washing with deionized water, dying at 80 degrees C to obtain carboxylated carbon nanotube-modified graphene sheet, preparing polyurethane prepolymer by mixing polytetramethylene ether glycol and isophorone diisocyanate in a weight ratio of 1:1-4:1, adding dibutyltin dilaurate catalyst and then reacting at 60-80 degrees C for 2-3 hours, adding 2-sulfobenzoic anhydride and carboxylated carbon nanotube-modified graphene sheet and then reacting at 90 degrees C for 2 hours to obtain polyurethane prepolymer, adding 1.5-3.5 wt.% chain extender and 18-30 wt.% acetone, reacting at 65-75 degrees C for 1.8-3.2 hours, adding 0.5-1.2 wt.% D-panthenol and 0.8-2 wt.% 2,4,6-hydroxybenzoic acid, reacting at 75-85 degrees C for 0.5-2 hours, adding 12-15 wt.% triethylamine and 1 wt.% benzamide and reacting for 30-50 minutes.