High-hardness single-component water-based paint and preparation method thereof

The invention relates to water-based industrial paint, in particular to high-hardness single-component water-based paint and a preparation method thereof. The high-hardness single-component water-based paint is prepared from water-based resin, water-based emulsion, a drier, conventional auxiliaries, a neutralizer, a pigment, a filler, deionized water, a thickener and a solvent, the high-hardness single-component water-based paint is prepared by mixing the proper modified acrylic resin and the water-based acrylic emulsion with the high TG value and matching the mixture with the proper pigment,filler and assistant, so that the film forming property is ensured, the film forming speed can be improved, and the drying speed is increased; the prepared finished paint has the characteristics of high hardness improvement speed, good salt spray resistance, no harm to a human body, good environmental protection performance and the like, and the hardness can be improved to H level; the preparationprocess is simple, easy t