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A preparation method of gel-modified anti-fog film material

A film material and modification technology, applied in the field of preparation of gel-modified anti-fog film materials, can solve the problems of poor mechanical properties and durability of anti-fog film materials, improve the hydrophobic and anti-fog performance of the film, and achieve excellent compatibility. properties, excellent hydrophobicity

Active Publication Date: 2020-06-05
安徽天路新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problems of poor mechanical properties and durability of existing anti-fog film materials, a preparation method of gel-modified anti-fog film materials is provided

Method used

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  • A preparation method of gel-modified anti-fog film material

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example 1

[0018] According to the mass ratio of 1:10, chitosan was added to the mass fraction of 0.5% hydrochloric acid, stirred and mixed to obtain a mixed solution, and carbon nanotubes were added to the mixed solution according to a mass ratio of 1:5, and ultrasonically dispersed at 200W for 10 minutes. The dispersion was obtained, and the mass fraction of 1% sodium glycerophosphate solution was added dropwise to the dispersion according to the mass ratio of 1:15, and the dropping rate was controlled at 2mL / min. The disodium-sodium dihydrogen phosphate buffer solution adjusted the pH to 6.5 to obtain the modified solution and heated it in a water bath at 35°C for 2h, let it cool down to room temperature and placed it at 45°C for 20h to obtain the modified gel solution, In parts by weight, weigh 25 parts of methyl acrylate, 65 parts of modified gel solution, 10 parts of styrene and 1 part of potassium persulfate in a three-necked flask, stir and mix, and heat in a water bath at 75°C fo...

example 2

[0020] According to the mass ratio of 1:10, chitosan was added to the mass fraction of 0.5% hydrochloric acid, stirred and mixed to obtain a mixed solution, and carbon nanotubes were added to the mixed solution according to a mass ratio of 1:5, and ultrasonically dispersed at 300W for 15 minutes. The dispersion was obtained, and the mass fraction of 1% sodium glycerophosphate solution was added dropwise to the dispersion according to the mass ratio of 1:15, and the dropping rate was controlled at 3mL / min. The disodium-sodium dihydrogen phosphate buffer solution adjusted the pH to 6.5 to obtain a modified solution, which was heated in a water bath at 37°C for 3 hours, left to cool to room temperature, and left to stand at 50°C for 24 hours to obtain a modified gel solution. In parts by weight, weigh 30 parts of methyl acrylate, 70 parts of modified gel solution, 15 parts of styrene and 2 parts of potassium persulfate in a three-necked flask, stir and mix, and heat in a water bat...

example 3

[0022] According to the mass ratio of 1:10, chitosan was added to the mass fraction of 0.5% hydrochloric acid, stirred and mixed to obtain a mixed solution, and carbon nanotubes were added to the mixed solution according to the mass ratio of 1:5, and ultrasonically dispersed at 250W for 12min. The dispersion was obtained, and the mass fraction of 1% sodium glycerophosphate solution was added dropwise to the dispersion according to the mass ratio of 1:15, and the dropping rate was controlled at 2mL / min. The disodium-sodium dihydrogen phosphate buffer solution adjusted the pH to 6.5 to obtain a modified solution, which was heated in a water bath at 36°C for 2 hours, allowed to cool down to room temperature, and placed at 47°C for 22 hours to obtain a modified gel solution. In parts by weight, weigh 27 parts of methyl acrylate, 67 parts of modified gel solution, 12 parts of styrene and 2 parts of potassium persulfate in a three-necked flask, stir and mix, and heat in a water bath ...

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Abstract

The invention relates to a preparation method of a gel modified anti-mist film material, and belongs to the technical field of anti-mist film materials. According to the invention, a temperature-sensitive gel is used for modification, and due to the high-efficiency response of the temperature-sensitive gel material to the temperature environment, the temperature change of film leads to irregular and uneven appearance on the surface of the film after the surface of the material is coated with mist. The agglomeration and support of water drops on the surface of the film are effectively reduced through the effective change of the surface of the material, so that the anti-mist performance of the anti-mist film material is effectively increased. In addition, the temperature-sensitive gel material and hydrophobic monomers are polymerized for preparing modified particles, and the inner molecules of the temperature-sensitive gel material are grafted with the polymerized hydrophobic monomers, so that the modified particles have excellent hydrophobic performance. Simultaneously, the high-molecular polymer formed by polymerization has excellent compatibility with the film material, so that the mechanical properties and the durability of the film material are effectively improved while the anti-mist property of the film is improved.

Description

technical field [0001] The invention relates to a preparation method of a gel-modified anti-fog film material, belonging to the technical field of anti-fog film materials. Background technique [0002] Agricultural production has high requirements for greenhouse films. On the one hand, it needs to have high light transmittance, and on the other hand, its surface needs to be smooth enough to allow light to irradiate the crops evenly to improve the efficiency of photosynthesis. Agricultural shed films are usually made of hydrophobic materials. When the surface temperature of the film is lower than the dew point of water vapor, the water vapor in the air will condense on the inner surface of the film when the water vapor reaches saturation or supersaturation, and small water droplets will be precipitated to atomize the film. On the one hand, due to the scattering and refraction of water droplets, the light transmittance of the film decreases, reducing the photosynthetic efficie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L51/02C08K3/04C08J5/18C08F251/00C08F220/14C08F212/08
CPCC08F251/00C08J5/18C08J2323/06C08J2451/02C08K3/041C08F220/14
Inventor 胡果青蒋益
Owner 安徽天路新材料股份有限公司
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