Antibacterial, antiviral and anti-fog coating sol, goggles and preparation method

Abstract

The invention relates to antibacterial, antiviral and anti-fog coating sol, goggles and a preparation method. The sol comprises inorganic photocatalyst sol, a leveling agent, a binder and a thickener.The inorganic photocatalyst sol is prepared from the following raw materials: a precursor, a complexing agent, an acid catalyst, water, an organic solvent and antibacterial ions. The prepared antibacterial anti-fog goggles have excellent antibacterial and anti-virus functions. Tests show that the antibacterial rate of escherichia coli and staphylococcus aureus can be up to 99% or above; the antiviral activity rate on H1N1 and H3N2 is as high as 99% or above; the anti-fog effect is excellent, the antibacterial anti-fog film layer coated on a prepared lens substrate is mainly made of an inorganic photocatalyst material, which has an antibacterial effect under the action of light and no light, meanwhile, the prepared goggles have high light transmittance, the light transmittance is as high as 95% or above, and the use requirements of medical goggles are met.

Description

technical field [0001] The invention belongs to the field of goggles, and in particular relates to an antibacterial, antiviral and anti-fog coating sol, goggles and a preparation method. Background technique [0002] For people who wear goggles frequently or for a long time, goggle fogging is a very common headache, especially in winter or when there is a large temperature difference between indoor and outdoor, and warmer temperatures caused by perspiration and breathing enter the goggles. When the eyepiece housing. The fogging of the goggles makes the wearer unable to see the objects or expected targets in front clearly, which can easily lead to traffic accidents caused by drivers wearing goggles during driving, and medical accidents caused by medical staff wearing goggles during the operation, resulting in medical accidents caused by wearing goggles. Swimming, mountaineering and other personnel of the eyepiece cause various accidents during use. Therefore, how to carry o...

AI Technical Summary

Problems solved by technology

In addition, since the goggles are in contact with the eyes, the most fragile organ of the human body, bacteria are easy to breed due to the presence of water vapor during the use of the goggles. Once these bacteria settle in the human eye, they generally remain within six weeks. Stable and unchanging state, thus causing serious harm to eyes and human health, so antibacterial is also an urgent problem for goggles

In addition, when medical staff use goggles, viruses can easily enter the inside of the goggles and cause cross-infection among medical staff. Therefore, anti-virus is also an important problem that goggles need to solve

[0003] At present, in order to solve the above problems, most of the lenses are treated by coating multiple functional film layers on the surface of the lens, and the process of anti-fog treatment of the lens is mainly to add pro- Water-based polymer materials, thus forming a layer of hydrophilic organic anti-fog film on the surface of the lens, the problem is that the durability is poor; for the treatment of antibacterial and antiviral film, it is usually added Antibacterial and antiviral agents to achieve antibacterial and antiviral purposes, but the organic antibacterial agents added in common treatment methods have poor durability and poor antibacterial effect persistence, and the inorganic antibacterial agents added will be due to uneven dispersion of inorganic particles. As a result, the transparency of goggles is reduced, which seriously affects the use of goggles; in addition, there is currently no film material that has excellent transparency and can integrate the functions of antibacterial, anti-virus, and anti-fog to make goggles lenses coating

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