▎ 摘　　要

NOVELTY - Modified polyurethane coating comprises 3-6 pts. wt. defoamer, 3-6 pts. wt. leveling agent and 80-120 pts. wt. modified polyurethane emulsion. USE - Used as modified polyurethane coating. ADVANTAGE - The coating: avoids the problem of poor mechanical properties of polyurethane coatings; expands the application range of graphene oxide; and improves the mechanical strength and thermal stability of polyurethane coatings as a whole. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the modified polyurethane coating, comprising adding defoamer, leveling agent and the modified polyurethane emulsion into deionized water, and uniformly ultrasonically dispersing to obtain modified polyurethane coating.