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Ultraviolet light cured antifogging coating

A technology of anti-fog coating and ultraviolet light, applied in the direction of coating, etc., can solve the problems of wear resistance, water resistance and anti-fog performance, the inability to achieve anti-fog effect, swelling of the anti-fog coating surface, etc., to achieve good Long-lasting anti-fog performance, excellent anti-fog durability, effect of reducing migration tendency

Active Publication Date: 2013-02-06
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the published literature and patents, the main resin constituting the anti-fog coating usually contains both hydrophilic and hydrophobic units. When the hydrophilicity of the resin increases, the anti-fog performance of the anti-fog coating also increases, but The water resistance becomes poor, and the surface of the anti-fog coating swells after absorbing water, and the hardness decreases
Although increasing the cross-linking degree of the resin can solve the problems of water resistance and hardness, the anti-fog performance often decreases, and it is impossible to achieve an efficient and durable anti-fog effect
The coating components provided by these patents also have problems in terms of abrasion resistance, water resistance and anti-fog performance.

Method used

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  • Ultraviolet light cured antifogging coating
  • Ultraviolet light cured antifogging coating
  • Ultraviolet light cured antifogging coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 Preparation of UV-curable anti-fog coating

[0018] (1) Preparation of anti-fog active resin A

[0019] Specific steps are as follows:

[0020] ① Prepare the ingredients

[0021] The specific dosage is: 40 parts by weight of reactive nonionic surfactant SN-10, 15 parts by weight of acrylic acid, 45 parts by weight of butyl acrylate, the total amount of the three is 100 parts by weight; 50 parts by weight of butyl acetate, 50 parts by weight of propylene glycol methyl ether parts by weight, 1.6 parts by weight of initiator azobisisobutyronitrile; 20 parts by weight of glycidyl methacrylate (the ratio of glycidyl methacrylate to acrylic acid is 20:15=1.33);

[0022] ②Preparation process

[0023] 40 parts by weight of butyl acetate and all propylene glycol methyl ether were mixed and put into the reactor, and the temperature was raised to 90 ° C and began to drip a total of 100 parts by weight of reactive nonionic surfactant SN-10, acrylic acid and butyl acryl...

Embodiment 2

[0032] Example 2 Preparation of UV-curable anti-fog coating

[0033] (1) Preparation of anti-fog active resin B

[0034] Specific steps are as follows:

[0035] ① Prepare the ingredients

[0036] The specific dosage is: 30 parts by weight of reactive nonionic surfactant SN-15, 15 parts by weight of acrylic acid, 55 parts by weight of butyl methacrylate, the total amount of the three is 100 parts by weight; 50 parts by weight of butyl acetate, propylene glycol methyl ether 50 parts by weight, 1.6 parts by weight of initiator azobisisobutyronitrile; 20 parts by weight of glycidyl methacrylate (the ratio of glycidyl methacrylate to acrylic acid is 20:15=1.33);

[0037] ②Preparation process

[0038] The specific preparation steps are the same as those in Example 1 except that the raw materials and the dosage are different, and the anti-fog active resin B is prepared.

[0039] (2) Preparation of UV-curable anti-fog coatings

[0040] ①The coating formula is shown in Table 2.

...

Embodiment 3

[0045] Example 3 Preparation of UV-curable anti-fog coating

[0046] (2) Preparation of anti-fog active resin C

[0047]Specific steps are as follows:

[0048] ① Prepare the ingredients

[0049] The specific dosage is: 25 parts by weight of reactive nonionic surfactant SN-20, 20 parts by weight of methacrylic acid, 55 parts by weight of butyl acrylate, the total amount of the three is 100 parts by weight; 50 parts by weight of butyl acetate, propylene glycol methyl ester 50 parts by weight of ether, 1.6 parts by weight of initiator azobisisobutyronitrile; 22 parts by weight of glycidyl methacrylate (the ratio of glycidyl methacrylate to methacrylic acid is 22:20=1.1);

[0050] ②Preparation process

[0051] The specific preparation steps are the same as those in Example 1, except that the raw materials and the dosage are different, and the anti-fog active resin C is obtained.

[0052] (2) Preparation of UV-curable anti-fog coatings

[0053] ①The coating formula is shown in...

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Abstract

The invention relates to an ultraviolet light cured antifogging coating. The ltraviolet light cured antifogging coating adopts antifogging activated resin which contains activated double bond and can be cured by ultraviolet light as the main film-forming resin, and is prepared by mixing, based on total weight of the antifogging coating, 32-60% of the antifogging activated resin, 10-25% of activated diluent, 1.5-2.5% of photoinitiator, 25-40% of solvent, and 0.1-1% of adjuvant. The antifogging activated resin is prepared by subjecting reactive nonionic surfactant allyloxy nonyl phenoxy propanol polyoxyethylene ether, (methyl) acrylic acid and (methyl) butyl acrylate to free radical polymerization, and grafting and modifying by the polymer via glycidyl methacrylate, wherein the amount ratio of the glycidyl methacrylate to the (methyl) acrylic acid is 1-1.4. The film formed by the coating cured by the ultraviolet light is high in water resistance performance, durable in antifogging effect and high in hardness, and wiping resistance is improved remarkably.

Description

Technical field [0001] The invention relates to an ultraviolet light curing anti-fog coating. 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, it condenses into tiny droplets to form mist. The result of atomization of water droplets on the surface of transparent materials not only reduces the light transmittance and affects vision, but sometimes even causes harm. For example, when the fog droplets condense on agricultural plastic films in greenhouses or solar cell light-transmitting panels, the fog blocks the transmission of sunlight. As a result, the solar energy absorption efficiency is reduced, which is not conducive to the full play of these facilities. In order to prevent the surface of transparent materials from atomizing, people have taken various measures to eliminate the condensation of fog droplets. There are three commonly used methods: ① Heati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D5/00C09D7/12
Inventor 顾斌王木立沈雪锋苟小青
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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