A preparation method of anti-glare nano anti-microbial composite functional coating

Abstract

The invention provides a preparation method of an anti-glare nano anti-microbial composite functional coating: first, the improved sol-gel method is used to prepare silica particles enriched with hemispherical strontium oxide on the surface; An organic solvent is used to coat and disperse the hemispherical strontium oxide-rich silica particles on the surface. Then, the swollen PMMA polymer particles are used to uniformly wrap the strontium oxide-rich silica particles as light-scattering particles, and then prepare a sheet of silicon-doped alumina / graphene powder and make an ethanol slurry. Scattering particles, silicon-doped alumina / graphene slurry, special resin, adhesion promoter, and graphene composite anti-virus powder are mixed with ultrasound to make anti-glare nano-anti-microbial composite functional coating liquid. The coating solution is coated on PET film or glass to prepare a coating, which has anti-glare, anti-microbial, strong wear resistance, high bending strength and fracture toughness, and has wide application prospects.

Description

technical field

[0001] The invention belongs to the technical field of preparation of nano functional coatings, in particular to a preparation method of an anti-glare nano anti-microbial composite functional coating. Background technique

[0002] Glare mainly refers to a human visual condition. Under such visual conditions, the human body will feel uncomfortable, which will also reduce the resolution of the human eye. The most direct cause is the brightness of the human visual environment. Uneven distribution, simply put, is stronger contrast. In our life, there are bare light sources in schools, offices, private houses, etc. The bare light source has high brightness, which interferes with people's life and work to a certain extent. Especially in places where the intensity of work is high, such as industrial plants, many workers will experience glare and other phenomena, which will directly affect the labor efficiency of workers and human visual health to a certain extent, ...

Examples

Embodiment 1

[0030] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 10g of ethylenediaminetetraacetic acid, 5g of citric acid, and 1g of strontium citrate to 221g of water and stir evenly, add 663g of ethanol, then slowly add 100g of TEOS, drop Add concentrated ammonia water to adjust the pH value to 7, react at 30°C to form a gel, stir and mix with 100g of n-butanol, azeotropically distill at 92°C to remove the water, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 400° C. for 2 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0031] Dispersion modification of silica particles enriched in hemispherical strontium oxide: Take 2g of grinding resin EFKA-1101, 1g of wetting and dispersing agent ECO-2300, add them to 100g of ethanol solvent, stir evenly, add 10g of hemispherical strontium oxide enriched For silica particles, use an explosion-proof closed non-circula...

Embodiment 2

[0036] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 14g ethylenediaminetetraacetic acid, 7g citric acid and 1.5g strontium acetate to 207g water and stir evenly, add 620g ethanol, then slowly add 150g TEOS, drop Add concentrated ammonia water to adjust the pH value to 8, react at 40°C to form a gel, stir and mix with 150g of n-butanol, azeotropically distill at 92°C to remove the water therein, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 430° C. for 3 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0037] Dispersion modification of hemispherical strontium oxide enriched silica particles: Take 2.4g of grinding resin EFKA-1120, 1.2g of wetting and dispersing agent byk110, add to 100g of propylene glycol methyl ether acetate solvent, stir well, add 10g of hemispherical The silicon dioxide particles enriched with strontium oxide are dispersed i...

Embodiment 3

[0042] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 18g of ethylenediaminetetraacetic acid, 9g of citric acid, and 2g of strontium oxalate to 194g of water and stir evenly, add 583g of ethanol, then slowly add 180g of TEOS, drop Adjust the pH value to 8.5 with concentrated ammonia water, react at 45°C to form a gel, stir and mix with 180g of n-butanol, azeotropically distill at 92°C to remove the water, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 480° C. for 4 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0043] Dispersion modification of hemispherical strontium oxide enriched silica particles: Take 2.8g of grinding resin EFKA-1120, 1.4g of wetting and dispersing agent ECO-2300, add to 100g of propylene glycol methyl ether solvent, stir well, add 10g of hemispherical The silicon dioxide particles enriched with strontium oxide are disperse...

technical field

[0001] The invention belongs to the technical field of preparation of nano functional coatings, in particular to a preparation method of an anti-glare nano anti-microbial composite functional coating. Background technique

[0002] Glare mainly refers to a human visual condition. Under such visual conditions, the human body will feel uncomfortable, which will also reduce the resolution of the human eye. The most direct cause is the brightness of the human visual environment. Uneven distribution, simply put, is stronger contrast. In our life, there are bare light sources in schools, offices, private houses, etc. The bare light source has high brightness, which interferes with people's life and work to a certain extent. Especially in places where the intensity of work is high, such as industrial plants, many workers will experience glare and other phenomena, which will directly affect the labor efficiency of workers and human visual health to a certain extent, ...

Examples

Embodiment 1

[0030] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 10g of ethylenediaminetetraacetic acid, 5g of citric acid, and 1g of strontium citrate to 221g of water and stir evenly, add 663g of ethanol, then slowly add 100g of TEOS, drop Add concentrated ammonia water to adjust the pH value to 7, react at 30°C to form a gel, stir and mix with 100g of n-butanol, azeotropically distill at 92°C to remove the water, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 400° C. for 2 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0031] Dispersion modification of silica particles enriched in hemispherical strontium oxide: Take 2g of grinding resin EFKA-1101, 1g of wetting and dispersing agent ECO-2300, add them to 100g of ethanol solvent, stir evenly, add 10g of hemispherical strontium oxide enriched For silica particles, use an explosion-proof closed non-circula...

Embodiment 2

[0036] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 14g ethylenediaminetetraacetic acid, 7g citric acid and 1.5g strontium acetate to 207g water and stir evenly, add 620g ethanol, then slowly add 150g TEOS, drop Add concentrated ammonia water to adjust the pH value to 8, react at 40°C to form a gel, stir and mix with 150g of n-butanol, azeotropically distill at 92°C to remove the water therein, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 430° C. for 3 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0037] Dispersion modification of hemispherical strontium oxide enriched silica particles: Take 2.4g of grinding resin EFKA-1120, 1.2g of wetting and dispersing agent byk110, add to 100g of propylene glycol methyl ether acetate solvent, stir well, add 10g of hemispherical The silicon dioxide particles enriched with strontium oxide are dispersed i...

Embodiment 3

[0042] First prepare the silica particles with hemispherical strontium oxide enriched on the surface: add 18g of ethylenediaminetetraacetic acid, 9g of citric acid, and 2g of strontium oxalate to 194g of water and stir evenly, add 583g of ethanol, then slowly add 180g of TEOS, drop Adjust the pH value to 8.5 with concentrated ammonia water, react at 45°C to form a gel, stir and mix with 180g of n-butanol, azeotropically distill at 92°C to remove the water, and continue to reflux to distill out n-butanol. The obtained precursor powder was treated at 480° C. for 4 h to obtain the desired hemispherical strontium oxide-enriched silica particles.

[0043] Dispersion modification of hemispherical strontium oxide enriched silica particles: Take 2.8g of grinding resin EFKA-1120, 1.4g of wetting and dispersing agent ECO-2300, add to 100g of propylene glycol methyl ether solvent, stir well, add 10g of hemispherical The silicon dioxide particles enriched with strontium oxide are disperse...

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