Drop-proof photocureable UV coating and preparation method thereof

The invention relates to the technical field of UV coatings, in particular to a drop-proof photocureable UV coating and a preparation method thereof. The drop-proof photocureable UV coating comprises the following raw materials in parts by weight: 15-20 parts of aliphatic bifunctional polyurethane acrylate, 12-18 parts of aliphatic trifunctional polyurethane acrylate, 20-25 parts of aliphatic tetrafunctional polyurethane acrylate, 8-12 parts of aliphatic hexafunctional polyurethane acrylate, 2.3-3.5 parts of a photoinitiator, 0.3-0.5 part of a leveling agent, 2-7 parts of a delustering agent, 5-10 parts of n-butyl acetate and 5-10 parts of MEK (methyl ethyl ketone). According to the drop-proof photocureable UV coating, polyurethane acrylates of various different functional groups serve as raw materials for compounding, the defects that a paint film has high probability of cracking due to unbalanced hardness and tenacity of a conventional UV coating in which polyurethane acrylate of the same functional group i