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Hollow nanoparticle composite antifogging film and preparation method thereof

A nano-particle and anti-fog film technology, applied in the field of material chemistry, can solve the problems of short service life, affecting transparency, and easy volatility, and achieve superior heat insulation performance, improve anti-fog effect, and improve anti-fog performance.

Active Publication Date: 2014-11-19
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This affects the transparency, brings a lot of inconvenience to life, and even causes a great safety hazard. Therefore, solving the fogging phenomenon on the glass surface has great production and practical value.
[0003] The glass anti-fog coating liquid commonly used at present has the defects of volatile, short service life, and ordinary cleaning procedures can cause anti-fog failure

Method used

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Examples

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preparation example Construction

[0035] Preferred embodiment: a method for preparing an anti-fog coating solution and an anti-fog product, comprising the following steps:

[0036] (1) the sucrose aqueous solution is heated and reacted in a hydrothermal kettle, and the nano-carbon bead solution is obtained after cooling;

[0037] (2) After adding solvent, silicon dioxide precursor and ammonia solution, react at normal temperature, after the reaction is finished, suction filter to obtain nano-silica particles with carbon beads as the nucleus;

[0038] (3) After calcining the nano-silica particles with carbon spheres as the core at high temperature, pure hollow nano-silica particles can be obtained, which are weighed for later use

[0039] (4) After mixing the anti-fog coating solution with acrylate resin, polyethylene glycol, hollow silica nanoparticles and surfactant as the main components, spray, spin or immerse the coating on the coupling agent. Anti-fog coating is formed on the glass surface after treatmen...

Embodiment 1

[0048] This embodiment provides a method for preparing a hollow nanoparticle compounded polymer anti-fog coating solution for transparent glass, which includes the following steps:

[0049] Add 25mL, 0.5M sucrose solution into a hydrothermal kettle, keep it at 160°C for 4 hours, pour it directly into a 250mL beaker, add 80mL of methanol solution, 6mL of concentrated ammonia water (28%) and 3mL of ethyl orthosilicate, and stir at room temperature for 4 When it is small, the particles obtained by suction filtration are calcined in a muffle furnace at 550°C for 4 hours (maintaining a temperature increase rate of 2°C per minute), and pure hollow nano-silica particles can be obtained.

[0050] Add 2.0 g of acrylic resin and 1.7 g of polyethylene glycol PEG400 into 4 g of propylene glycol methyl ether acetate, stir to obtain a mixed solution, add 0.5 g of the previously obtained hollow nano-silica particles into it and stir evenly. Add 0.25 g of polyoxyethylene alkylphenol ether, a ...

Embodiment 2

[0055] This embodiment provides a method for preparing a hollow nanoparticle compounded polymer anti-fog coating solution for transparent glass, which includes the following steps:

[0056] Add 40mL, 0.5M sucrose solution into a hydrothermal kettle, keep it at 180°C for 4 hours, pour it directly into a 250mL beaker, add 80mL of methanol solution, 9mL of concentrated ammonia water (28%) and 5mL of ethyl orthosilicate, and stir at room temperature for 4 When it is small, the particles obtained by suction filtration are calcined in a muffle furnace at 550°C for 4 hours (maintaining a temperature increase rate of 2°C per minute), and pure hollow nano-silica particles can be obtained.

[0057] Add 2.0 g of acrylic resin and 1.7 g of polyethylene glycol PEG400 into 4 g of propylene glycol methyl ether acetate, stir to obtain a mixed solution, add 0.75 g of the previously obtained hollow nano-silica particles into it and stir evenly. Add 0.25 g of nonionic surfactant polyoxyethylene ...

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Abstract

The invention relates to a hollow nanoparticle composite antifogging film and a preparation method thereof. The hollow nanoparticle composite antifogging film comprises hollow nanoparticles and a high-polymer antifogging material, wherein the hollow nanoparticles and high-polymer antifogging material are compounded to form the antifogging film. The method comprises the following steps: (1) preparing the hollow silicon dioxide nanoparticles by a hydrothermal process; (2) mixing the obtained hollow silicon dioxide nanoparticles with an acrylate resin and other components to obtain a composite antifogging coating liquid; (3) forming a hollow nanoparticle composite high-polymer antifogging coating on a glass surface; and (4) curing to form the antifogging film. The coating compounded from the hollow silicon dioxide nanoparticles and hydrophilic high-polymer resin can form a compact and enduring antifogging film on the glass surface, thereby enhancing the antifogging effect. The hollow silicon dioxide nanoparticles have excellent heat insulation property, thereby greatly enhancing antifogging performance of the high-polymer hydrophilic antifogging film.

Description

technical field [0001] The invention relates to the technical field of material chemistry, in particular to the field of hollow nanoparticle composite anti-fog film, in particular to a hollow nanoparticle composite anti-fog film and a preparation method thereof. Background technique [0002] When the glass is in use, there is a temperature difference between the two sides that are separated from each other, so that the water vapor in the air condenses into fog on the surface of the high temperature side. This affects the transparency, brings a lot of inconvenience to life, and even causes great safety hazards, so solving the fogging phenomenon on the glass surface has great production and practical value. [0003] The glass anti-fog coating liquid commonly used at present has the defects of being volatile and short in service life, and ordinary cleaning procedures can cause anti-fog failure Contents of the invention [0004] The object of the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00
Inventor 洪丽熊建民陈大华徐蕤秦玉林
Owner CHERY AUTOMOBILE CO LTD
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