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Preparation method of self-cleaning coating and self-cleaning glass

A self-cleaning and coating technology, used in polyether coatings, coatings, etc., can solve problems such as being unsuitable for large-scale processing

Active Publication Date: 2013-12-25
佛山中科邦达无机功能材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process uses spin coating technology, which is not suitable for large-scale processing

Method used

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  • Preparation method of self-cleaning coating and self-cleaning glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation process of the self-cleaning coating and the self-cleaning curtain wall glass of this embodiment mainly includes the following steps:

[0030] 1) Preparation of SiO 2 Sol: use anhydrous methanol as solvent and ammonia as catalyst to prepare SiO 2 Sol; SiO 2 The concentration is 0.1-0.5mol / L, the specific steps are as follows:

[0031] 1-1) Take 40ml of anhydrous methanol and add it to a clean beaker, then add 4ml of tetraethyl orthosilicate to it and mix well, seal the mouth of the beaker while stirring, and use it as liquid A, and the stirring time is 0.5h;

[0032] 1-2) Take 80ml of anhydrous methanol and add it to a clean beaker, then add 2ml of concentrated ammonia water to it, mix and stir evenly, seal the mouth of the beaker while stirring, and use it as liquid B, and the stirring time is 0.5h;

[0033] 1-3) Add liquid B dropwise into liquid A with a separatory funnel, and mix while stirring. After the mixing is completed, seal it well and stir ...

Embodiment 2

[0041] The preparation process of the self-cleaning coating and the self-cleaning curtain wall glass of this embodiment mainly includes the following steps:

[0042] 1) Preparation of SiO 2 Sol: use anhydrous methanol as solvent and ammonia as catalyst to prepare SiO 2 Sol; SiO 2 The concentration is 0.1-0.5mol / L. Specific steps are as follows:

[0043] 1-1) Take 60ml of anhydrous methanol and add it to a clean beaker, then add 4ml tetraethyl orthosilicate to it and mix well, seal the mouth of the beaker while stirring, and use it as liquid A, and the stirring time is 0.5h;

[0044] 1-2) Take 120ml of anhydrous methanol and add it to a clean beaker, then add 2ml of concentrated ammonia water to it, mix and stir evenly, seal the mouth of the beaker while stirring, and use it as liquid B, and the stirring time is 0.5h;

[0045] 1-3) Add liquid B dropwise into liquid A with a separatory funnel, and mix while stirring. After the mixing is completed, seal it well and stir at ro...

Embodiment 3

[0052] The preparation process of the self-cleaning coating and the self-cleaning curtain wall glass of this embodiment mainly includes the following steps:

[0053] 1) Preparation of SiO 2 Sol: use anhydrous methanol as solvent and hydrochloric acid as catalyst to prepare SiO 2 Sol; SiO 2 The concentration is 0.05-0.25mol / L; the specific steps are as follows:

[0054] 1-1) Take 60ml of anhydrous methanol and add it to a clean beaker, then add 4ml tetraethyl orthosilicate to it and mix well, seal the mouth of the beaker while stirring, and use it as liquid A, and the stirring time is 0.5h;

[0055] 1-2) Take 120ml of anhydrous methanol and add it to a clean beaker, then add 2ml of concentrated ammonia water to it, mix and stir evenly, seal the mouth of the beaker while stirring, and use it as liquid B, and the stirring time is 0.5h;

[0056] 1-3) Add liquid B dropwise into liquid A with a separatory funnel, and mix while stirring. After the mixing is completed, seal it well...

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Abstract

The invention relates to a preparation method of a self-cleaning coating and a self-cleaning glass. The preparation method includes: firstly preparing a SiO2 sol; then mixing the SiO2 sol with polyethylene glycol, ammonium perchlorate and n-butanol evenly to obtain the self-cleaning coating; and spraying the self-cleaning coating on the surface of a clean glass, then carrying out curing treatment, or performing toughening treatment according to a toughened glass process, thus obtaining the self-cleaning curtain wall glass. The self-cleaning film layer formed in the invention is a porous SiO2 structure, is firmly combined with a glass substrate and has excellent weather resistance. The prepared self-cleaning glass surface has a superhydrophilic effect, so that surface dirt can be effectively removed. With good weather resistance, the self-cleaning glass can be used in the curtain wall glass filed.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a preparation method of self-cleaning paint and self-cleaning glass. Background technique [0002] Glass curtain wall is a kind of beautiful and novel building wall decoration method, and it is a remarkable feature of the era of modern high-rise buildings. In recent years, with the progress of society and the improvement of people's living standards, glass curtain walls have been widely used at home and abroad, and the amount of use is increasing. However, there is a problem of poor stain resistance during the use of glass curtain walls. The natural beauty of the glass curtain wall, which is clean and transparent, is not resistant to pollution, especially in the northern regions where there is a lot of dust in the atmosphere, serious air pollution, drought and little rain. The reflection is uncontrollable, causing the light environment to be messy and d...

Claims

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Application Information

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IPC IPC(8): C09D171/08C03C17/23
Inventor 王丹李智文胡柱东陈铭波江文俊梁衍忠江坚
Owner 佛山中科邦达无机功能材料有限公司
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