▎ 摘　　要

NOVELTY - Weather-resistant coating comprises component A and component B. The component A comprises 20-50 pts. wt. aliphatic diisocyanate, 10-30 pts. wt. aliphatic diisocyanate trimer, 10-40 pts. wt. polyether diol, 15-40 pts. wt. polyether triol and 0.1-20 pts. wt. graphene oxide. The component B comprises 15-40 pts. wt. polyether diamine, 20-50 pts. wt. polyether triamine, 15-30 pts. wt. cycloaliphatic diamine and 0.1-20 pts. wt. carboxylated carbon nanotubes. The mass ratio of the A component and the B component is 1: 0.1-10, and the isocyanate index is 1.05-1.10. USE - The coating is useful for ballistic protection of the building outer wall and outdoor vehicle, preferably an armored car, transport vehicle and tank (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the coating, comprising (i) quickly adding the aliphatic diisocyanate to a three-necked flask containing magnetons, and adding graphene oxide to the flask, and controlling the temperature in the flask to 60-100 degrees C, displacing nitrogen to air, and sealing the ultrasonic dispersion for 0.5-6 hours, changing to magnetic stirring, and continues to pass in nitrogen for 6-30 hours, absorbing the aliphatic diisocyanate trimer, continuously passing nitrogen, and stirring uniformly at constant temperature, adding polyether diol and polyether triol to the reaction kettle, heating to 40-90 degrees C, stirring under vacuum for 1-5 hours, removing water, passing nitrogen to cool to 30 degrees C, the temperature is increased to 50-90 degrees C, and maintained for 0.5-7 hours to ensure that the reaction is complete, and sealing nitrogen and protecting, and (ii) adding the cycloaliphatic diamine to a conical flask filled with magnetons, and adding carboxylated carbon nanotubes c-MWCNTs, sealing and dispersing by ultrasonic at room temperature for 0.2-3 hours, transferring the ultrasonically dispersed to a vacuum mixer, and adding polyether diamine and polyether triamine, and stirring under vacuum for 0.5-5 hours to remove water, and mixing the formulated components A and B.