Water-based two-component polyurethane matte coating as well as preparation method and application thereof

The invention provides a water-based two-component polyurethane matte coating as well as a preparation method and application thereof. The water-based two-component polyurethane matte coating comprises a component A and a component B. The component A is prepared from the following raw materials in parts by weight: 60-90 parts of hydroxyl acrylate emulsion, 5-20 parts of deionized water, 0-30 parts of powder, 0.5-2.5 parts of a wetting dispersant, 0.2-2 parts of a thickening agent, 0.2-1 part of a defoaming agent, 0.5-1.5 parts of a preservative, and 0.2-2 parts of a coalescing agent; the component B is prepared from the following raw material in parts by weight: 0.1 to 5 parts of Covestro 307 water-based curing agent. The polyurethane matt coating disclosed by the invention can have a matt effect without additionally adding matting powder, the water resistance, permeability and stability of the coating can be greatly improved, and the polyurethane matt coating is suitable for the field of coatings. 本发明提供一种水性双