Coating as well as preparation method and application thereof

The invention provides a coating as well as a preparation method and application thereof. The coating comprises a resin dispersion liquid, a transition metal oxide catalyst and a solvent, and the resin dispersion liquid comprises at least one of a polyamide-imide resin dispersion liquid, a polyether sulfone resin dispersion liquid, a polyphenylene sulfide resin dispersion liquid, a polyether-ether-ketone resin dispersion liquid and a polyether-ether-ketone-ketone resin dispersion liquid. According to the present invention, the transition metal oxide catalyst is prepared into the coating material, and after the coating material forms the coating layer, the catalytic oxidation effect of the catalyst can be effectively utilized to achieve the effect of degrading the grease produced during the cooking process and the formaldehyde and other harmful substances in the air. The invention also provides a preparation method and application of the coating. 本发明提供了一种涂料及其制备方法和应用。根据本发明的涂料，组分包括树脂分散液、过渡金属氧化物催化剂和溶剂，所述树脂分散液包括聚酰