Aqueous paint with good covering power effect and preparation method thereof

Abstract

The invention discloses aqueous paint with a good covering power effect and a preparation method thereof. The aqueous paint is prepared from the following components in parts by weight: 30-40 parts ofdeionized water, 20-30 parts of aqueous acrylic resin, 5-10 parts of waterborne polyurethane, 30-40 parts of titanium dioxide, 2-4 parts of a pH buffer agent, 2-4 parts of a flatting agent, 3-5 partsof a film forming auxiliary agent, 3-5 parts of a dispersant, 1-2 parts of a wetting agent and 1-2 parts of a defoamer. The preparation method comprises the following steps: (1) adding the titanium dioxide into the deionized water to be dispersed and stirred to form a mixed solution A; (2) successively adding the waterborne acrylic resin, the waterborne polyurethane, the pH buffer agent, the flatting agent, the film forming auxiliary agent, the dispersant and the wetting agent into the mixed solution A and stirring the mixed solution A to obtain a mixed solution B; (3) adding the defoamer into the deionized water, uniformly stirring the mixture, dropwise adding the mixture, and stirring the mixture to obtain a mixed solution C; and (4) filtering the mixed solution C to prepare the aqueouspaint. The aqueous paint is simple in preparation process, can be produced on a large scale, is good in covering power effect, and saves energy and time.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-based paint with good hiding effect and a preparation method thereof. Background technique [0002] Traditional interior paints contain a high amount of solvents, which will volatilize and emit a lot of toxic gases with odor during the drying process and in the following years, such as formaldehyde, ethylene glycol, ethers, esters and other volatile organic solvents. It causes damage to the human body and pollutes the environment at the same time. [0003] With the improvement of people's awareness of environmental protection, the requirements for home decoration paint continue to increase. Water-based paint uses water as a solvent. Compared with traditional paints, it has the advantages of low VOC, environmental protection, non-flammable, non-explosive, and non-yellowing, and is gradually favored by consumers. At the same time, water-based paint has become a research ...

AI Technical Summary

Problems solved by technology

At present, the water-based paints on the market generally have the problem of poor hiding power. In the process of painting, two layers of coverage are required to achieve the effect, resulting in an increase in labor costs during the painting process.