▎ 摘　　要

NOVELTY - Chassis coating, comprises 30-60 pts. wt. modified asphalt, 15-20 pts. wt. filler, 3-5 pts. wt. emulsifier, 50-90 pts. wt. water, 20-50 pts. wt. acrylic emulsion, 0.5-1 pts. wt. film forming agent, where the modified asphalt is prepared by adding graphene oxide into matrix asphalt in a molten state, mixing and stirring to obtain a mixed solution A, adding the basic oxide flame retardant and dispersing agent into the mixed solution A, mixing and stirring to obtain mixed solution B, dispersing the mixed solution B to obtain modified asphalt. The weight ratio of the graphene oxide to the matrix asphalt to the basic oxide flame retardant is 1 (5-7) to 0.5-1. USE - Used as chassis coating containing modified asphalt. ADVANTAGE - The coating: is not easy to melt and drop when heated; has high soften point and excellent flame retardant effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the chassis coating, comprising (i) heating the modified asphalt to a molten state, (ii) adding the emulsifier and acrylic emulsion into water and uniformly stirring to form a mixed solution C, and (iii) adding the molten modified asphalt, filler and film forming agent into the mixed solution C, stirring and shearing to obtain the product.