▎ 摘　　要

NOVELTY - A coating comprises a liquid material and a powder material. The mass ratio of the liquid material and powder material is 1: (2-2.5). The liquid material includes 50-60 pts. wt. composite emulsion, 2-3 pts. wt. graphene oxide, 1-2 pts. wt. film forming aids, 4-6 pts. wt. dispersant, 0.2-0.4 pt. wt. defoamer, 0.5-1 pt. wt. thickener and 30-40 pts. wt. water. The composite emulsion is formed by mixing a tertiary acrylate emulsion and an acrylic copolymer emulsion in a mass ratio of 1: (1.2-1.8). The powder is made by mixing quartz powder, heavy calcium powder and cement in a mass ratio of (1.2-1.5): (0.4-0.5):1. USE - Coating for improving durability of paper skateboards. ADVANTAGE - The wear-resistant coating improves the mechanical properties and durability of paper skateboard. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of coating, which involves S1, adding graphene oxide and a dispersant to water, and ultrasonically dispersing uniformly to obtain a graphene oxide dispersion, S2, adding the graphene oxide dispersion, defoamer, and thickener described in step S1 to the composite emulsion, stirring electrically, adding fumed silica, and stirring evenly to obtain a material liquid, and S3, adding the powder to the liquid described in step S2 and stirring until the powder is completely dissolved.