Antibacterial coating and antibacterial water-based paint for the application of antibacterial agents as green building materials

Abstract

This invention discloses an antibacterial agent comprising a plurality of nano-silver particles, a plurality of artificial clay (Laponite) sheets, and an aqueous base liquid, wherein each artificial clay sheet adsorbs a plurality of nano-silver particles, and the artificial clay sheets adsorbing a plurality of nano-silver particles are dispersed in the aqueous base liquid.

Claims

1. An antimicrobial coating for applying an antimicrobial agent to the surface of an object as a green building material, the antimicrobial coating comprising: Multiple nano-silver particles; multiple sheets of artificial clay (Laponite), each of which adsorbs multiple nano-silver particles; When a piece of the artificial clay sheet is a single-layer sheet structure, multiple nano-silver particles are adsorbed on the outer surface of the artificial clay sheet; when a piece of the artificial clay sheet is a multi-layer sheet structure with gaps, multiple nano-silver particles are adsorbed on the outer surface of the artificial clay sheet and the surfaces between its layers; wherein the ratio of the multiple nano-silver particles to the multiple artificial clay sheets is 1:10 to 1:

40.

2. The antimicrobial coating as described in claim 1 for applying an antimicrobial agent to the surface of an object as a green building material, wherein the nano-silver particles have a particle size of 6 to 10 nm.

3. The antimicrobial coating as described in claim 1 for applying an antimicrobial agent to the surface of an object as a green building material, wherein the object is a board or a wall.

4. An antibacterial waterborne coating for uniformly dispersing an antibacterial agent in a waterborne coating for use as a green building material, comprising: This water-based coating; The antibacterial agent comprises: a plurality of silver nanoparticles; a plurality of latonite sheets, each latonite sheet having adsorbed a plurality of silver nanoparticles; and an aqueous base solution in which the latonite sheets having adsorbed a plurality of silver nanoparticles are dispersed; when a latonite sheet is a single-layer sheet structure, the plurality of silver nanoparticles are adsorbed on the outer surface of the latonite sheet; when a latonite sheet is a multi-layer sheet structure with gaps, the plurality of silver nanoparticles are adsorbed on the outer surface of the latonite sheet and the surfaces between its layers; the ratio of the plurality of silver nanoparticles to the plurality of latonite sheets is 1:10 to 1:40; wherein the latonite sheets having adsorbed a plurality of silver nanoparticles account for 0.8 to 1.2 wt%, and the aqueous base solution accounts for 98.8 to 99.2 wt%.

5. The antibacterial waterborne coating as described in claim 4, wherein the antibacterial agent is uniformly dispersed in the waterborne coating for use as a green building material, wherein the antibacterial agent accounts for 10-30 wt% and the waterborne coating accounts for 70-90 wt%.

6. The antibacterial waterborne coating as described in claim 4 for uniformly dispersing an antibacterial agent in a waterborne coating for use as a green building material, wherein the nano-silver particles have a particle size of 6-10 nm.

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