Preparation method of titanium silver-based antimildew and antibacterial emulsion paint interior wall paint

Abstract

The invention relates to a preparation method of paint and aims to provide a preparation method of titanium silver-based antimildew and antibacterial emulsion paint interior wall paint. The method comprises the following steps: titanium dioxide nano-crystalline sol rich in hydroxyl and stannous salt solution are fully mixed, reflux reaction is carried out on the mixed solution on the condition ofwater bath, and the product is centrifugally separated, washed and then peptized into deionized water; soluble silver salt solution and reducing agent are added into the sol with stirring, stirring is carried out on the system to promote the full reaction of the system, and then the product is centrifugally washed and then peptized into deionized water to obtain silver-carrying nano titanium dioxide antimildew and antibacterial sol; the sol is added into emulsion paint with stirring to obtain the titanium silver-based antimildew and antibacterial emulsion paint interior wall paint. The invention has the outstanding advantages of non-toxic and harmlessness, no secondary pollution, obvious antibacterial effect, recyclable use, simple preparation process, and easy operation.

Description

technical field [0001] The invention relates to a preparation method of a coating, in particular to a preparation method of a titanium-based silver-based anti-mildew and antibacterial latex paint interior wall coating. Background technique [0002] Interior wall paint is an important decoration material. The architectural paint varieties in industrially developed countries abroad are mainly latex paint, and its output generally accounts for 50% of the total output. Among them, the United States mainly develops pure acrylic latex paint and vinyl acetate latex paint, Japan mainly uses styrene-acrylic latex paint, and Western European countries mainly use vinyl acetate or vinyl tertiary carbonate modified vinyl acetate latex paint. In my country's architectural interior wall coatings, low-grade polyvinyl alcohol coatings still account for a large proportion, accounting for about 40% of the total output of coatings; due to their poor quality, the output will gradually decline in...

AI Technical Summary

Problems solved by technology

[0003] However, common anti-mildew and anti-bacterial latex paint products have low inhibitory effect on some bacteria, and it is necessary to increase the amount of anti-mold and anti-bacterial agents to obtain the desired effect, resulting in an increase in the cost of interior wall coatings; Mold and antibacterial agent products are mostly large particles, which will cause sedimentation when dispersed in the paint, and must be re-stirred when used, but it is still difficult to ensure uniform dispersion, so its anti-mildew and anti-bacterial effects are unstable

However, for some new nano antifungal and antibacterial agents, there are problems of easy aggregation and poor long-term dispersion stability.

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