Photocuring anti-doodling coating with self-healing function and preparation method and application thereof

The invention discloses a photocuring anti-doodling coating with a self-healing function and a preparation method and application thereof. The photocuring anti-doodling coating is mainly prepared by blending ultraviolet-curable polyurethane resin, a reactive diluent, hydrophobic modified nanoparticles, a photoinitiator and an auxiliary agent; the photocuring anti-doodling coating is prepared from the following components in parts by weight: 10 to 70 parts of UV-curable polyurethane resin, 10 to 40 parts of reactive diluent, 5 to 30 parts of modified nano particles, 0.5 to 10 parts of photoinitiator and 0.1 to 10 parts of additive. A coating layer formed after the coating is coated is good in surface uniformity and smoothness and low in surface energy, and doodling substances and dirt are difficult to permeate into the coating film; meanwhile, after the surface of the coating is physically abraded, hydrophobic substances in the coating can migrate to the surface under damp and hot conditions to automatically r