A kind of water-based paint ink that has added dendritic polymer dispersant

Abstract

The invention relates to dendritic polymer dispersant-added waterborne coating ink and belongs to the field of coatings. The waterborne coating ink comprises the following components in parts by weight: 1-3 parts of dendritic polymer, 80-150 parts of waterborne resin, 8-12 parts of toner and 11-22 parts of a solvent. The waterborne coating ink has the beneficial effects that 1, the industrial production is achieved, the process is simple and the batch promotion can be achieved; 2, the property of the coating can be increased, the process effect is improved and such mechanical properties of the coating as adhesive force, flexibility, hardness, wear resistance and the like cannot be decreased; 3, the waterborne coating ink can be universal for dispersion of azo and quinacridone organic pigments, compared to conventional dispersants, the dendritic dispersant disclosed by the invention has significant advantages of final evaluation indicators, namely, viscosity and fineness over the conventional dispersants, the addition is less than those of the conventional dispersants, the overall advantages are prominent and purposes that the cost is saved and the process effects is improved can be achieved.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a water-based coating ink added with a dendritic polymer dispersant. Background technique [0002] In the field of coatings, the dispersion of organic pigments has always been a problem. Common polymer dispersants have a large amount of use, resulting in high costs, and the dispersion effect is not good enough, the uniformity and stability are poor, and the dispersion is uniform, so they cannot be widely used for different organic pigments. Dispersion, resulting in high production costs, unsatisfactory weather resistance and aging resistance after construction. [0003] In the production of paint and ink, pigment dispersion is an important link. Dispersants can promote the production process to obtain uniform and stable coatings. Pigment dispersants are effective additives that can effectively achieve uniform dispersion of pigment particles during the grinding process and can be placed st...

AI Technical Summary

Problems solved by technology

[0005] At present, the common traditional low-molecular-weight dispersants have a relatively narrow application range, especially for the field of water-based coating inks. After dispersion, the coating stability is poor, the results of common indicators are poor, and the dosage is large, resulting in high process costs.

Most of the high-molecular-weight dispersants on the market are block-type polymer dispersants, which can solve the application defects of low-molecular-weight dispersants. Dendritic organic pigment dispersants have been reported in the literature, but many active groups are not the best for organic pigments. Good group, and the synthesis process is complicated, it is difficult to widely popularize