Production method of superhydrophobic antifog glass

An anti-fog glass and super-hydrophobic technology, applied in the field of materials, can solve the problems of adsorption of dust and other impurities, and achieve the effect of enhanced hydrophobicity, improved dispersibility, and increased contact angle

Inactive Publication Date: 2019-05-10
邹玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention: Aiming at the problem that the hydrophilic surface of existing hydrophilic anti-fog products

Method used

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  • Production method of superhydrophobic antifog glass

Examples

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example 1

[0037] In terms of parts by weight, weigh 15 parts of cyclohexane, 0.1 part of ethylenediamine, 20 parts of tetraethyl orthosilicate, and 150 parts of deionized water, add cyclohexane into deionized water, and set the Stir at a speed of 200r / min for 5min, keep warm to obtain a cyclohexane solution, add ethylenediamine and ethyl orthosilicate to the cyclohexane solution, stir at 300r / min for 10min in a water bath at 50°C, and add dropwise a mass fraction of 1% hydrochloric acid to adjust the pH to 4, react at a constant temperature for 22 hours to obtain a gel, place the gel at 80°C for 22 hours in a vacuum, grind it to obtain nano-silica particles with a particle size of 20nm, and then weigh them in parts by weight 5 parts of hexamethyldisilazane, 20 parts of n-hexane, 10 parts of nano-silica particles, add hexamethyldisilazane into n-hexane, stir at 150r / min for 10min at room temperature to obtain hexamethyldisilazane The n-hexane solution of disilazane, adding nano-silica pa...

example 2

[0039] In parts by weight, weigh 17 parts of cyclohexane, 0.2 parts of ethylenediamine, 23 parts of tetraethyl orthosilicate, and 175 parts of deionized water, add cyclohexane into deionized water, and set Stir at a speed of 225r / min for 7min, keep warm to obtain a cyclohexane solution, add ethylenediamine and ethyl orthosilicate to the cyclohexane solution, stir at 350r / min for 13min in a water bath at 55°C, and add dropwise a mass fraction of 1% hydrochloric acid to adjust the pH to 4.5, and react at a constant temperature for 23 hours to obtain a gel. The gel was vacuum-dried at 85°C for 23 hours, and ground to obtain nano-silica particles with a particle size of 25nm, which were weighed in parts by weight 7 parts of hexamethyldisilazane, 25 parts of n-hexane, 15 parts of nano-silica particles, hexamethyldisilazane was added to n-hexane, and stirred at 175r / min for 13min at room temperature to obtain hexamethyldisilazane The n-hexane solution of disilazane, add nano-silica ...

example 3

[0041] In parts by weight, weigh 20 parts of cyclohexane, 0.3 parts of ethylenediamine, 25 parts of tetraethyl orthosilicate, and 200 parts of deionized water, add cyclohexane into deionized water, and put Stir at a speed of 250r / min for 10min, keep warm to obtain a cyclohexane solution, add ethylenediamine and ethyl orthosilicate to the cyclohexane solution, stir at 400r / min for 15min in a water bath at 60°C, and add dropwise a mass fraction of 1% hydrochloric acid to adjust the pH to 5, react at a constant temperature for 24 hours to obtain a gel, place the gel at 90°C for 24 hours in a vacuum, and grind to obtain nano-silica particles with a particle size of 30nm, which are then weighed in parts by weight 10 parts of hexamethyldisilazane, 30 parts of n-hexane, 20 parts of nano-silica particles, hexamethyldisilazane was added to n-hexane, and stirred at 200r / min for 15min at room temperature to obtain hexamethyldisilazane The n-hexane solution of disilazane, adding nano-sili...

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Abstract

The invention relates to a production method of a superhydrophobic antifog glass and belongs to the technical field of materials. The superhydrophobic antifog glass is produced with hydrophobic nano silica particles; the surface of a glass material is coated with a layer of hydrophobic nano silica particles, so that surface wet state of the glass material is improved, small waterdrops formed of condensed vapor slip off under their gravity action, the surface pollutants are easily brought away by the waterdrops, and good self-cleaning effect is achieved. Trimethoxy(1H,1H,2H,2H-heptadecafluorodecyl)silane and 3-aminopropyltriethoxysilane are added herein to produce superhydrophobic antifog glass; since a superhydrophobic coating on the antifog glass contains F and Si atoms; F is an element of greatest electronegativity in the periodic table of elements, has very small atom radius and forms a very short F-Si bond having great bond energy; the surrounding of carbon chains of a fluorine atom polymer is in tight arrangement, so that the fluorine-bearing polymer has excellent weatherability, surface self-cleaning property, high temperature resistance, chemicals resistance and the like.

Description

technical field [0001] The invention relates to a preparation method of superhydrophobic anti-fog glass, which belongs to the field of material technology. Background technique [0002] Glass material is a traditional material that has been widely used, and has a large number of applications in the fields of automobiles, construction, optical lenses, bathroom mirrors, and protective glasses. Due to the existence of high humidity or large temperature difference, a layer of fog is often formed on the surface of the glass, which affects the line of sight, brings a lot of inconvenience and even leads to disasters. [0003] At present, people have done a lot of research on anti-fog technology, and the common methods are as follows: electrothermal method. At present, a commonly used method of defogging, such as automobile glass, is to use electric heating wire to heat up and increase the temperature of the glass to defog. , but this method requires extra energy consumption, high ...

Claims

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Application Information

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IPC IPC(8): C03C17/00
Inventor 邹玉
Owner 邹玉
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