Nano antimicrobial internal wall paint containing illite-montmorillonite clay and preparation method thereof

Abstract

The invention discloses a nano antimicrobial internal wall paint containing illite-montmorillonite clay and a preparation method thereof, belonging to the field of phyllosilicate clay minerals. The nano antimicrobial internal wall paint is composed of an illite-montmorillonite clay nano slurry and a water-based internal wall latex paint, wherein the illite-montmorillonite clay nano slurry accounts for 10-20 wt% of the total nano antimicrobial internal wall paint. The preparation method comprises the following steps: (1) crushing natural illite-montmorillonite clay mineral, and adding water to obtain a slurry; (2) regulating the pH value of the slurry, and dispersing; (3) carrying out screening, iron removal and bleaching on the slurry; (4) grinding the bleached slurry by a high-energy density stirring grinder to obtain a nano slurry; and (5) mixing the nano slurry with the water-based internal wall latex paint, and sufficiently stirring uniformly to obtain the nano antimicrobial internal wall paint containing illite-montmorillonite clay. The nano antimicrobial internal wall paint has excellent anti-mildew and antimicrobial effects, and can obviously lower formaldehyde, methylbenzene, dimethylbenzene and other toxic harmful substances in the paint.

Description

technical field [0001] The present invention relates to a nano-antibacterial interior wall paint containing Emon clay and a preparation method thereof, in particular to a method of adding nano-Imon clay as an antibacterial agent to water-based interior wall latex paint to improve the antibacterial effect of the water-based interior wall latex paint , which belongs to the new application field of layered silicate clay minerals. Background technique [0002] Antibacterial coating refers to the addition of antibacterial agents to the coating to make the coating have antibacterial properties. Antibacterial coatings, when used at home, can effectively reduce the bacterial density of living rooms, furniture surfaces, and household appliances; when used in public places, they can reduce the bacterial concentration of public places such as bus handles and seats in waiting rooms, and reduce cross-infection and the possibility of contact infection; when used in food processing plants...

AI Technical Summary

Problems solved by technology

[0007] Water-based coatings use water as the dispersion medium, which is susceptible to microbial contamination and damage. During the production and storage of coatings, it is easy to cause unstable product quality, discoloration, odor, pH changes, and even swelling; after the coating is dried and formed into a film, Discoloration, softness, loss of adhesion, loss of gloss, cracking, bubbles, etc. will occur, thus making the coating lose its protective effect

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