Inorganic antibacterial formaldehyde-removing paint and preparation method thereof

Abstract

The invention relates to an inorganic antibacterial formaldehyde-removing paint. The antibacterial formaldehyde-removing paint is prepared by using an emulsion as a binding agent and an inorganic antibacterial functional material nanometer zinc oxide as a functional material. The inorganic antibacterial formaldehyde-removing paint comprises the following components: water, emulsion, nanometer zinc oxide, titanium dioxide, calcined clay, calcium carbonate, talcum powder, a wetting agent, a dispersant, an anti-foaming agent, a film-forming agent, an antifreezer and a thickener. Compared with traditional regular organic antiseptic and anti-mildew agents, the inorganic nanometer zinc oxide antibacterial and antiviral paint has the functions of safeness, no toxicity, long-term antisepsis and formaldehyde removal.

Description

technical field [0001] The invention relates to a preparation method of an inorganic antibacterial and aldehyde-removing coating. Background technique [0002] At present, water-based latex paints generally use organic fungicides and antifungal agents, the ingredients of which are isothiazolones, formaldehyde-releasing, benzoimidazoles, substituted aromatics, organic bromine, and dithiocarbamate, etc. . The sterilization and anti-mold of this kind of bactericide and anti-mold agent is to inactivate the germs and mold through its own toxicity, so as to achieve the purpose of anti-bacteria and anti-mold. These fungicides and antifungal agents are strongly irritating to the skin, potentially harmful to water organisms, sensitive to pH, not resistant to high temperatures, and because they are organic compounds, they will slowly decompose during use and become invalid. Organic preservatives will be lost in the paint film after being rinsed by rainwater, losing their antiseptic ...

AI Technical Summary

Problems solved by technology

The commonly used inorganic antibacterial materials on the market are nano-silver, complexes of nano-silver, and nano-titanium dioxide. Nano-silver sterilizes bacteria because of the surface effect, quantum size and quantum tunneling effect of nano-silver, which makes nano-silver have super activity and permeability. Moreover, the surface characteristics of nanoscale metallic silver can form ligands with electron-withdrawing groups such as sulfhydryl groups and amine groups of bacterial proteins, but this type of antibacterial material is prone to oxidation and failure

Although the nano-silver complex solves the problem of easy oxidation, it is generally sprayed on the paint film, which increases the cost of construction

The antibacterial effect of nano-titanium dioxide is mainly achieved through its ultraviolet light catalysis, but it also needs to be sprayed on the paint film to achieve this effect, which will undoubtedly increase the construction cost

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