UV antifogging coating for protective mask and preparation method of UV antifogging coating

Abstract

The invention relates to a UV anti-fog coating for a protective mask and a preparation method of the UV anti-fog coating. The anti-fog coating comprises the following components in parts by weight: 20-50 parts of hydrophilic acrylate oligomer; 15 to 45 parts of a hydrophilic reactive diluent; 1-10 parts of a high-functionality reactive diluent; 1-8 parts of a photoinitiator; 19.5 to 40 parts of a solvent; and 0.1-0.5 part of a leveling agent. The preparation method comprises the following steps: mixing the hydrophilic acrylate oligomer, the hydrophilic active diluent, the high-functional-group active diluent, the solvent and the photoinitiator, and then adding the flatting agent to obtain the UV anti-fog coating for the protective mask. Compared with the prior art, the prepared UV-cured super-hydrophilic anti-fog coating can be rapidly cured, the coating stability is good, the content of hydrotropic substances of the raw materials is high, the hydrophilic performance is excellent, the water resistance and the wear resistance are excellent due to the high-functional-group reactive diluent, the industrially-produced UV diluent with polyhydroxy groups is adopted to replace hydrophilic acrylate oligomer, and the cost is low.

Description

technical field

[0001] The invention relates to the technical field of anti-fog coatings, in particular to a UV anti-fog coating for protective masks and a preparation method thereof. Background technique

[0002] Fog is a common natural phenomenon in the meteorological environment. When the water vapor in the air reaches or approaches the dew point temperature, it will condense into tiny liquid droplets to form fog. As a result of the atomization of water droplets on the surface of transparent materials, not only the decrease of light transmittance will affect the vision, but sometimes even cause harm.

[0003] In order to prevent fogging on the surface of transparent materials, various measures have been taken to eliminate the condensation of fog droplets. A more ideal choice is to coat a layer of UV anti-fog coating on the surface of the transparent material to prevent the condensation of foggy water droplets, thereby maintaining the optical transparency of the transpar...

Examples

Embodiment 1

[0031] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0032]

[0033] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

[0034] The protective mask is obtained by the following method with UV anti-fog coating:

[0035] Put the hydrophilic acrylate oligomer, hydrophilic reactive diluent, high-functional reactive diluent, solvent, and photoinitiator into the reactor in turn, stir at 400 rpm for 25 minutes, then reduce the speed to 150 rpm, and then add the leveling agent. Stir for 10 minutes, adjust the viscosity, let it stand for 12 minutes, and filter to obtain the UV anti-fog coating for protecti...

Embodiment 2

[0037] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0038]

[0039] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

Embodiment 3

[0041] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0042]

[0043] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

technical field

[0001] The invention relates to the technical field of anti-fog coatings, in particular to a UV anti-fog coating for protective masks and a preparation method thereof. Background technique

[0002] Fog is a common natural phenomenon in the meteorological environment. When the water vapor in the air reaches or approaches the dew point temperature, it will condense into tiny liquid droplets to form fog. As a result of the atomization of water droplets on the surface of transparent materials, not only the decrease of light transmittance will affect the vision, but sometimes even cause harm.

[0003] In order to prevent fogging on the surface of transparent materials, various measures have been taken to eliminate the condensation of fog droplets. A more ideal choice is to coat a layer of UV anti-fog coating on the surface of the transparent material to prevent the condensation of foggy water droplets, thereby maintaining the optical transparency of the transpar...

Examples

Embodiment 1

[0031] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0032]

[0033] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

[0034] The protective mask is obtained by the following method with UV anti-fog coating:

[0035] Put the hydrophilic acrylate oligomer, hydrophilic reactive diluent, high-functional reactive diluent, solvent, and photoinitiator into the reactor in turn, stir at 400 rpm for 25 minutes, then reduce the speed to 150 rpm, and then add the leveling agent. Stir for 10 minutes, adjust the viscosity, let it stand for 12 minutes, and filter to obtain the UV anti-fog coating for protecti...

Embodiment 2

[0037] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0038]

[0039] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

Embodiment 3

[0041] A kind of UV anti-fog paint for protective mask, its component and mass parts are as follows:

[0042]

[0043] In this embodiment, the hydrophilic acrylate oligomer is selected from polyurethane acrylate oligomer, the hydrophilic reactive diluent is selected from ethoxylated trimethylolpropane triacrylate (15EO-TMPTA), and the reactive diluent The agent is dipentaerythritol hexaacrylate, the photoinitiator is initiator 2959, the solvent is ethyl acetate, and the leveling agent is BYK-333.

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