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Heat-insulating antifogging film for automobile front windshields, and preparation method thereof

A front windshield and anti-fog film technology, applied in the field of automobile anti-fog materials, can solve the problems of reduced anti-fog performance and reduced absorption effect

Inactive Publication Date: 2020-04-21
安徽麦邮通网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention absorbs and desorbs water vapor through the water-absorbent resin film layer, avoids fogging of the glass, and has long-term anti-fog performance. Although the invention can absorb water vapor through the water-absorbent resin film layer, its absorption of water vapor is certain , when it reaches saturation, its absorption effect on water vapor will inevitably decrease, and the anti-fog performance will decrease.

Method used

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  • Heat-insulating antifogging film for automobile front windshields, and preparation method thereof
  • Heat-insulating antifogging film for automobile front windshields, and preparation method thereof
  • Heat-insulating antifogging film for automobile front windshields, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A heat-insulating anti-fog film for an automobile front windshield, which is prepared from the following components in parts by weight: 44 parts of ethyl acrylate, 15 parts of butyl acrylate, 31 parts of methyl methacrylate, N-methylol 8 parts of acrylamide, 9 parts of LDPE-g-MAA, 0.4 parts of azobisisobutyronitrile, 0.1 part of ammonia water with a mass concentration of 5%, 12 parts of tridecafluorooctyltriethoxysilane, triglycerol mono 1 part of stearate, 2 parts of glyceryl monostearate, 2 parts of nano-lanthanum oxide, 13 parts of hollow nano-silica, 44 parts of ethanol, and 85 parts of water.

[0031] The preparation method of the heat-insulating anti-fog film for the above-mentioned automobile front windshield is as follows:

[0032]Add ethyl acrylate, butyl acrylate, methyl methacrylate, and N-methylol acrylamide to the reaction flask in turn, under nitrogen protection, stir at room temperature for 12 minutes, then add azobisisobutyronitrile, and heat up to 66°C ...

Embodiment 2

[0034] A heat-insulating anti-fog film for an automobile front windshield, which is prepared from the following components in parts by weight: 40 parts of ethyl acrylate, 12 parts of butyl acrylate, 32 parts of methyl methacrylate, N-methylol 8 parts of acrylamide, 6 parts of LDPE-g-MAA, 0.1 part of azobisisobutyronitrile, 0.3 parts of ammonia water with a mass concentration of 8%, 12 parts of tridecafluorooctyltriethoxysilane, triglycerol mono 3 parts of stearate, 3 parts of glyceryl monostearate, 4 parts of nano cerium oxide, 12 parts of hollow nano silicon dioxide, 45 parts of isopropanol, and 90 parts of water.

[0035] The preparation method of the heat-insulating anti-fog film for the above-mentioned automobile front windshield is as follows:

[0036] Add ethyl acrylate, butyl acrylate, methyl methacrylate, and N-methylol acrylamide to the reaction flask in sequence, under nitrogen protection, stir at room temperature for 15 minutes, then add azobisisobutyronitrile, and ...

Embodiment 3

[0038] A heat-insulating and anti-fog film for an automobile front windshield, which is prepared from the following components in parts by weight: 44 parts of ethyl acrylate, 15 parts of butyl acrylate, 30 parts of methyl methacrylate, N-methylol 8 parts of acrylamide, 6 parts of LDPE-g-MAA, 0.2 parts of azobisisobutyronitrile, 0.2 parts of ammonia water with a mass concentration of 6%, 8 parts of tridecafluorooctyltriethoxysilane, triglycerol mono 1 part of stearate, 2 parts of glyceryl monostearate, 4 parts of nano samarium oxide, 12 parts of hollow nano silicon dioxide, 42 parts of methanol, and 90 parts of water.

[0039] The preparation method of the heat-insulating anti-fog film for the above-mentioned automobile front windshield is as follows:

[0040] Add ethyl acrylate, butyl acrylate, methyl methacrylate, and N-methylol acrylamide to the reaction flask in sequence, under nitrogen protection, stir at room temperature for 15 minutes, then add azobisisobutyronitrile, an...

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Abstract

The invention provides a heat-insulating antifogging film for automobile front windshields, and a preparation method thereof, and relates to the field of automobile antifogging materials. The heat-insulating antifogging film is prepared from, by weight, 40 to 50 parts of ethyl acrylate, 12 to 18 parts of butyl acrylate, 28 to 32 parts of methyl methacrylate, 5 to 10 parts of N,N-methylolacrylamide, 5 to 10 parts of LDPE-g-MAA, 0.1 to 0.5 part of azodiisobutyronitrile, 0.1 to 0.5 part of a pH regulator, 5 to 15 parts of tridecafluorooctyltriethoxysilane, 1 to 3 parts of tripolyglycerol monostearate, 1 to 3 parts of glyceryl monostearate, 2 to 4 parts of nano-rare earth oxide, 10 to 16 parts of hollow nano-silica, 40 to 45 parts of an alcohol solvent and 80 to 100 parts of water. The heat-insulating antifogging film is excellent in antifogging effect and excellent in heat-insulating property and mechanical properties, and can play a role in heat insulation and fog prevention of automobile front windshields.

Description

technical field [0001] The invention relates to the field of anti-fog materials for automobiles, in particular to a heat-insulating anti-fog film for an automobile front windshield and a preparation method thereof. Background technique [0002] In the cold winter or rainy season, the water vapor in the cab or the hot air in the car will condense into dewdrops on the cold glass surface, which will greatly reduce the light transmittance of the glass, affect the line of sight, bring great inconvenience to life, and even cause Dangerous; especially in winter, if the car window is not wiped, the driver cannot drive normally at all, and must stop the car and wipe the fog with a rag before continuing to drive. The atomization phenomenon also causes a lot of waste of resources, such as rust and corrosion of steel. [0003] At present, the research on glass anti-fog technology is in the stage of active development. With the development of the automobile industry, all countries have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L51/06C08K13/06C08K9/06C08K7/26C08K5/103C08K3/22C08J5/18C08F220/18C08F220/14C08F220/58
CPCC08F220/18C08J5/18C08J2333/24C08J2451/06C08K5/103C08K7/26C08K9/06C08K13/06C08K2003/221C08K2003/2213C08K2201/014
Inventor 陈庆
Owner 安徽麦邮通网络科技有限公司