▎ 摘　　要

NOVELTY - Furniture coating comprises 35-45 pts. wt. aqueous-based polyurethane resin, 15-25 pts. wt. modified carbon nanotubes, 5-10 pts. wt. graphene synergistic agent, 3-6 pts. wt. wetting agent, 1-3 pts. wt. film-forming auxiliary agent, 1-2 pts. wt. dispersant and 40-50 pts. wt. deionized water. The preparation of modified carbon nanotubes comprises (1) placing the carbon nanotubes in a proton irradiation box for irradiation treatment, completing the to obtain irradiated carbon nanotubes, (2) adding 20-30 pts. wt. irradiated carbon nanotubes to 45-55 pts. wt. ethanol solvent first, adding 1-3 pts. wt. lanthanum sulfate solution, stirring, stopping stirring and (3) adding 5-10 pts. wt. β-cyclodextrin and 0.2-0.7 pts. wt. potassium persulfate to the product of step (2), increasing the temperature, continuing stirring, washing and drying to obtain modified carbon nanotubes. USE - Used as furniture coating comprising e.g. aqueous-based polyurethane resin. ADVANTAGE - The furniture coating has fast drying and high weather resistance. DETAILED DESCRIPTION - Furniture coating comprises 35-45 pts. wt. aqueous-based polyurethane resin, 15-25 pts. wt. modified carbon nanotubes, 5-10 pts. wt. graphene synergistic agent, 3-6 pts. wt. wetting agent, 1-3 pts. wt. film-forming auxiliary agent, 1-2 pts. wt. dispersant and 40-50 pts. wt. deionized water. The preparation of modified carbon nanotubes comprises (1) placing the carbon nanotubes in a proton irradiation box for irradiation treatment, completing the to obtain irradiated carbon nanotubes, (2) adding 20-30 pts. wt. irradiated carbon nanotubes to 45-55 pts. wt. ethanol solvent first, adding 1-3 pts. wt. lanthanum sulfate solution, stirring to 55-65℃ at a speed of 300-350revolutions/minute for 30-40 minutes, stopping stirring and (3) adding 5-10 pts. wt. β-cyclodextrin and 0.2-0.7 pts. wt. potassium persulfate to the product of step (2), increasing the temperature to 65-75℃, continuing stirring at a speed of 650-750revolutions/minute for 1-2 hours, washing and drying to obtain modified carbon nanotubes. The preparation of graphene synergistic agent comprises (m) firstly adding graphene to nitric acid solution of 3-5 times, stirring to 65-75℃ at a speed of 350-450revolutions/minute for 20-30 minutes, completing the stirring, washing with water, drying to obtain pre-modified grapheme, (n) mixing, stirring 5-10 pts. wt. γ-(methacryloxyl) propyltrimethoxysilane (silane coupling agent KH570), 1-3 pts. wt. diisooctyl phosphate and 10-15 pts. wt. deionized water, adding 0.1-0.5 pts. wt. yttrium trioxide, stirring at 60-70℃ to obtain modified liquid and (o) sending the pre-modified graphene (5-9 times) to modified liquid obtained in step (n), ultrasonically dispersing, washing with water and drying to obtain a graphene synergistic agent. An INDEPENDENT CLAIM is also included for preparing furniture coating comprising (a) taking raw material, (b) adding aqueous-based polyurethane resin, modified carbon nanotubes, wetting agent, dispersant, and deionized water into a mixer, stirring, mixing at a speed of 550-650revolutions/minute for 55-65 minutes, completing the mixing, obtaining the first product, (c) adding graphene synergistic agent and film-forming auxiliary agent to the first product, continuing stirring, mixing at a speed of 300-400revolutions/minute for 20-30 minutes to obtain the second product and (d) maintaining the temperature of the second product at 45- 45℃ for 1-2 hours to obtain a furniture coating.