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Anti-fog film material and preparation method thereof

An anti-fog film, ethylene glycol dimethacrylate technology, applied in the field of anti-fog film materials and its preparation, can solve the problem of poor performance stability of anti-fog film, anti-fog effect and wear resistance need to be further improved and other issues, to improve the overall performance and performance stability, good anti-fog effect, and improve the effect of anti-fog performance

Active Publication Date: 2021-11-26
浙江葆润应用材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance stability of the anti-fog film is not good, and the anti-fog effect and wear resistance need to be further improved

Method used

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  • Anti-fog film material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing an anti-fog film material, comprising the steps of:

[0029] Step S1, allyl succinimidyl carbonate, ethylene glycol dimethacrylate, polyethylene glycol monoallyl ether, N-vinyl carbazole, vinyl β-cyclodextrin quaternary ammonium Salt, 2,3,5,6-tetrafluoroterephthalic acid, isocyanate-terminated polyurethane prepolymer, initiator, catalyst, and nano-titanium dioxide are added to the organic solvent, stirred evenly, and coated on the polytetrafluoroethylene board Or on a glass plate, placed in an inert gas atmosphere, dried at 85°C to constant weight, and then peeled off to obtain a polymer film;

[0030] Step S2, adding the polymer film made in step S1 to a mixed solution of methylvinylsilane and N-(4-cyano-3-trifluoromethylphenyl)methacrylamide, soaking for 2 After hours, take it out and place it in a blast oven at 80°C to dry to constant weight, and then carry out radiation grafting through radiation equipment at room temperature and nitrogen atm...

Embodiment 2

[0037] A method for preparing an anti-fog film material, comprising the steps of:

[0038]Step S1, allyl succinimidyl carbonate, ethylene glycol dimethacrylate, polyethylene glycol monoallyl ether, N-vinyl carbazole, vinyl β-cyclodextrin quaternary ammonium Salt, 2,3,5,6-tetrafluoroterephthalic acid, isocyanate-terminated polyurethane prepolymer, initiator, catalyst, and nano-titanium dioxide are added to the organic solvent, stirred evenly, and coated on the polytetrafluoroethylene board Or on a glass plate, placed in an inert gas atmosphere, dried at 87°C to constant weight, and then peeled off to obtain a polymer film;

[0039] Step S2, adding the polymer film made in step S1 to the mixed solution of methyl vinyl silfluorene and N-(4-cyano-3-trifluoromethylphenyl)methacrylamide, soaking for 2.5 After hours, take it out and place it in a blast oven at 83°C to dry to constant weight, and then carry out radiation grafting by radiation equipment at room temperature and nitroge...

Embodiment 3

[0046] A method for preparing an anti-fog film material, comprising the steps of:

[0047] Step S1, allyl succinimidyl carbonate, ethylene glycol dimethacrylate, polyethylene glycol monoallyl ether, N-vinyl carbazole, vinyl β-cyclodextrin quaternary ammonium Salt, 2,3,5,6-tetrafluoroterephthalic acid, isocyanate-terminated polyurethane prepolymer, initiator, catalyst, and nano-titanium dioxide are added to the organic solvent, stirred evenly, and coated on the polytetrafluoroethylene board Or on a glass plate, placed in an inert gas atmosphere, dried at 90°C to constant weight, and then peeled off the film to obtain a polymer film;

[0048] Step S2, adding the polymer film made in step S1 into a mixed solution of methylvinylsilane and N-(4-cyano-3-trifluoromethylphenyl)methacrylamide, soaking for 3 After hours, take it out and place it in a blast oven at 88°C to dry to constant weight, and then carry out radiation grafting through radiation equipment at room temperature and n...

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Abstract

The invention discloses an antifogging film material and a preparation method thereof. The method comprises the following steps: S1, adding allyl succinimido carbonate, ethylene glycol dimethacrylate, polyethylene glycol monoallyl ether, N-vinyl carbazole, vinyl beta-cyclodextrin quaternary ammonium salt, 2,3,5,6-tetrafluoroterephthalic acid, an isocyanate-terminated polyurethane prepolymer, an initiator, a catalyst and nano titanium dioxide into an organic solvent, and stirring the components to obtain a mixture, uniformly stirring the mixture and coating the mixture on a polyfluortetraethylene plate or a glass plate; s2, placing the substrate in an inert gas atmosphere, drying to constant weight at 85-95 DEG C, and then removing the film to obtain a polymer film; s3, performing radiation grafting to prepare the anti-fog film material. The anti-fog film material disclosed by the invention is remarkable in anti-fog effect, good in oil and dust pollution resistance and excellent in thermal stability, wear resistance, mechanical property, durability and performance stability.

Description

technical field [0001] The invention relates to the technical field of anti-fog film materials, in particular to an anti-fog film material and a preparation method thereof. Background technique [0002] Transparent substrates (such as glasses, car window glass, bathroom mirrors, building interior and exterior window glass, agricultural greenhouses, etc.) Fogging often occurs in places with high humidity and poor humidity, which reduces the light transmittance and reflectivity of the substrate, affects the line of sight, brings inconvenience to people's lives, and even causes danger, causing a lot of manpower and material losses. Therefore, how to overcome the fogging of water vapor on the surface of transparent substrates and prevent the occurrence of fogging has become a hot spot for current researchers. [0003] At present, the common method to prevent fogging phenomenon is the use of anti-fog film. Anti-fog film is a functional film that prevents water vapor from formin...

Claims

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Application Information

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IPC IPC(8): C08J7/18C08J5/18C08L51/08C08L51/02C08K3/22
CPCC08J7/18C08J5/18C08J2351/08C08J2451/08C08J2451/02C08K2003/2241
Inventor 施晓丽丁凯王新才
Owner 浙江葆润应用材料有限公司
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