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Waterborne acrylic anti-fog coating and preparation method thereof

A water-based acrylic and anti-fog coating technology, applied in the coating and other directions, can solve the problems of poor adhesion, unable to fully meet the actual application requirements, poor water resistance of surface hydrophilic substances, etc., and achieve good anti-fog performance and water resistance.

Active Publication Date: 2017-01-11
SHENZHEN ANPIN SILICONE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the coating formed by acrylate coating is one of the main varieties of hydrophilic anti-fog coating, but the existing acrylate coating has poor adhesion to the substrate, and usually requires special activation treatment or Increase the undercoating, and at the same time, after a long time of water scouring, the hydrophilic substances on the surface of the coating will be lost due to poor water resistance, resulting in poor continuous anti-fog effect of the coating, which cannot fully meet the actual application requirements

Method used

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  • Waterborne acrylic anti-fog coating and preparation method thereof
  • Waterborne acrylic anti-fog coating and preparation method thereof
  • Waterborne acrylic anti-fog coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The preparation method of surface coating comprises the following steps:

[0062] To prepare the top coat acrylic emulsion:

[0063] Take by weighing 2.5g ammonium persulfate and be dissolved in 40g deionized water to obtain initiator solution;

[0064] Weigh 1.0g sodium lauryl sulfate, 2.0g sodium p-styrene sulfonate and mix with 140g deionized water, add 142.5g n-butyl acrylate, 40g isooctyl acrylate, tri(methacrylic acid) trimethylol Propanyl ester 60g, methacrylic acid 45g, acrylic acid 22.5g, hydroxyethyl methacrylate 99g, N-methylolacrylamide 22.5g and 30g initiator solution, obtain pre-emulsion;

[0065] Weigh 2.5g alkylphenol polyether sulfosuccinic acid monoester sodium salt (MS-1 emulsifier, Jiangsu Haian Petrochemical Plant), 2.5g p-styrene sodium sulfonate and 360g deionized water, mix and heat up to 80°C , add 10g of initiator solution and 60.5g of pre-emulsion, and keep warm for 10min after the emulsion has obvious blue light to obtain seed emulsion;

...

Embodiment 2

[0069] The preparation method of surface coating comprises the following steps:

[0070] To prepare an acrylic emulsion:

[0071] Take by weighing 2.5g ammonium persulfate and be dissolved in 40g deionized water to obtain initiator solution;

[0072] Weigh 1.0g sodium lauryl sulfate, 2.0g sodium p-styrenesulfonate and mix with 170g deionized water, add 137.5g n-butyl acrylate, 30g isooctyl acrylate, tri(methacrylic acid) trimethylol Propanyl ester 45g, C 9 Vinyl tertiary carbonate 30g, methacrylic acid 45g, acrylic acid 22.5g, hydroxyethyl methacrylate 69g, N-methylolacrylamide 22.5g and 30g initiator solution, obtain pre-emulsion;

[0073] Weigh 2.5g alkylphenol polyether sulfosuccinic acid monoester sodium salt (MS-1 emulsifier, Haian Petrochemical Plant, Jiangsu Province), 2.5g p-styrene sodium sulfonate and 390g deionized water, mix and heat up to 80°C , add 10g of initiator solution and 40.3g of pre-emulsion, and keep warm for 10min after the emulsion has obvious blue ...

Embodiment 3

[0077] The preparation method of surface coating comprises the following steps:

[0078] To prepare an acrylic emulsion:

[0079] Take by weighing 2.5g ammonium persulfate and be dissolved in 40g deionized water to obtain initiator solution;

[0080] Weigh 1.0g sodium lauryl sulfate, 2.0g sodium p-styrenesulfonate and mix with 140g deionized water, add 137.5g n-butyl acrylate, 40g isooctyl acrylate, tri(methacrylic acid)trimethylol Propanyl ester 85g, methacrylic acid 25g, acrylic acid 25g, hydroxyethyl methacrylate 91.5g, N-methylolacrylamide 22.5g and 30g initiator solution, obtain pre-emulsion;

[0081] Weigh 1.5g alkylphenol polyether sulfosuccinic acid monoester sodium salt (MS-1 emulsifier, Jiangsu Haian Petrochemical Plant), 1.0g fatty alcohol polyoxyethylene ether sodium sulfate, 2.5g p-styrenesulfonic acid Mix sodium with 360g deionized water and raise the temperature to 80°C, add 10g initiator solution and 62g pre-emulsion solution, wait for the emulsion to show a ...

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Abstract

The invention provides a waterborne acrylic acid antifogging coating and a preparation method thereof. The antifogging coating comprises a prime coating and a top coating, wherein the top coating comprises an acrylic emulsion, a coalescing agent, a flattening agent, a thickener and a defoaming agent, the acrylic emulsion is prepared by carrying out emulsion polymerization on monomer raw materials comprising alkyl acrylate, polyol (methyl) acrylate, acrylic acid, methacrylic acid and a crosslinking monomer, the prime coating comprises an organic-silicone-modified acrylic emulsion, a coalescing agent, a flattening agent, a thickener and a defoaming agent and the organic-silicone-modified acrylic emulsion is prepared by carrying out emulsion polymerization on monomer raw materials comprising methyl methacrylate, styrene, alkyl acrylate, an organic silicone monomer and a crosslinking monomer. The waterborne acrylic acid antifogging coating disclosed by the invention is obtained by combining the prime coating and the top coating, and the antifogging coat prepared from the antifogging coating has the advantages of good adhesion force, water resistance and antifogging property.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based acrylic anti-fog coating and a preparation method thereof. Background technique [0002] During the use of transparent substrates such as glass and transparent resin materials, when there is a certain temperature difference between the two sides of the substrate, and the saturated vapor pressure of the water on the surface of the substrate on the low temperature side is lower than the vapor pressure of the surrounding environment, the water vapor will accumulate on the surface of the substrate And form fog in the form of tiny water droplets, refract and diffuse light, thereby significantly reducing the light transmittance of the substrate, so in some special applications such as car windshields, eyeglasses, etc. Substrates have a wide range of needs. [0003] Coating anti-fog coatings on the surface of substrates to form anti-fog coatings is the main research dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D133/08C08F220/14C08F212/08C08F230/08
Inventor 丁小卫唐建振雷生山祝琳
Owner SHENZHEN ANPIN SILICONE MATERIAL