A kind of silver-loaded nano-titanium dioxide bactericidal anti-mildew diatom mud and preparation method thereof

Abstract

The invention belongs to the field of diatom mud paint, and discloses silver-loaded nano titanium dioxide anti-mildew diatom mud and a preparation method thereof. The method is in particular as follows: first, silver-loaded nano titanium dioxide is made into 10-30wt% of prefabricated slurry, and the diatom mud is prepared from the 10-30wt% of prefabricated slurry, 20-35wt% of deionized water, 0.8-3wt% of an antifreezer, 2-5wt% of a nano silicon oxide solution, 0.2-1.0wt% of a thickening agent, 0.5-3wt% of bentonite, 3-15wt% of titanium dioxide, 5-20wt% of ash calcium, 25-40wt% of diatomite, 0.1-0.8wt% of a retarder and 0.1-2wt% of an ash calcium stabilizer. A coating which is obtained by forming a film from the diatom mud can capture oxygen free radicals decomposed from rotten substances and alkane molecules producing other peculiar smell, has a very strong killing effect on a variety of bacteria, and is anti-microbial and anti-mildew, the diatom mud needs no on-site mixing, product uniformity is improved, and dust pollution to the environment caused by on-site construction mixing can be avoided; a silver-loaded nano material has high surface activity, and is composited with the diatomite with physical adsorption effect, and surface anti-microbial and anti-mildew capability and indoor air purification efficiency of the diatom mud can be significantly improved.

Description

technical field [0001] The invention belongs to the field of diatom mud coatings, in particular to a silver-loaded nano-titanium dioxide sterilizing and anti-mold diatom mud and a preparation method thereof. Background technique [0002] As an indoor coating, diatom mud is favored by people because its construction, smearing and pattern making are superior to existing decorative coatings, it has super adsorption capacity, and it can also absorb harmful gases in the air. wide. [0003] Now the main component of diatom mud on the market is diatomite compounded with fillers, additives, binders, etc. The finished product is in the form of powder, which has a certain effect of adsorbing harmful gases, but the surface of the product has no Sterilization and purification function, directly adding silver-loaded nanomaterials to powder products can increase its sterilization and purification functionality, because nanomaterials have small particle size, increased specific surface ar...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to disperse evenly when silver-loaded nanomaterials are directly added to powdered diatom mud, resulting in a greatly reduced utilization rate of the added nanomaterials, unable to exert their true efficiency, and difficult to achieve a satisfactory bactericidal effect

Powder diatom mud also has disadvantages such as dust pollution caused by on-site mixing, small range of color choices, finished products after mixing cannot be stored, and are easy to harden and deteriorate.

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