CN116282945A - Preparation method of super-hydrophilic anti-fog coating on glass surface - Google Patents
Preparation method of super-hydrophilic anti-fog coating on glass surface Download PDFInfo
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- CN116282945A CN116282945A CN202310014459.6A CN202310014459A CN116282945A CN 116282945 A CN116282945 A CN 116282945A CN 202310014459 A CN202310014459 A CN 202310014459A CN 116282945 A CN116282945 A CN 116282945A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
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Abstract
The invention discloses a preparation method of a super-hydrophilic anti-fog coating on a glass surface, relates to the technical field of glass anti-fog, and aims at the problem that the existing coating can be gradually damaged and disappear along with time, and the preparation method comprises the following steps: preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver; cleaning the glass surface to be coated, and wiping the glass surface; clamping and placing the glass by using clamping jaws, and heating the front and back of the glass to complete the whole temperature rise of the glass; and placing the clamped and heated glass into a solution tank for preparing the colloidal solution for soaking through a lifting mechanism. The super-hydrophilic anti-fog coating prepared by the method has strong adhesion with glass, and can be protected by additionally coating the protective layer on the outer layer of the super-hydrophilic anti-fog coating, so that the wear resistance of the super-hydrophilic anti-fog coating is improved, and the performance of the super-hydrophilic anti-fog coating is not damaged after other solvents are cleaned.
Description
Technical Field
The invention relates to the technical field of glass antifogging, in particular to a preparation method of a super-hydrophilic antifogging coating on a glass surface.
Background
The super-hydrophilic coating surface can enable water vapor and water drops to spread on the substrate surface rapidly when the contact angle of the water drops with the solid surface is smaller than 5 degrees, so that a uniform water film is formed, diffuse reflection of light is eliminated, and an anti-fog effect is achieved. The super-hydrophilic surface is used as a typical special wetting surface and has good anti-fog and self-cleaning functions, a super-hydrophilic mold can be formed on the surface of glass, electron hole pairs can be generated by the super-hydrophilic mold under the irradiation of sunlight, super-oxygen free radicals and hydroxyl free radicals can be generated under the action of the sunlight and the external environment, and the free radicals can be oxidized and attached on the surface of the glass and finally washed away by rainwater, so that the self-cleaning function is realized. Therefore, the super-hydrophilic surface technology has wide application in industrial production and actual life.
The preparation method of the super-hydrophilic anti-fog coating on the surface of the traditional glass is too simple, the anti-fog coating on the surface of the glass is thinner, and the coating can be gradually damaged and disappear along with time in the long-time use process, so that the anti-fog effect is lost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of a super-hydrophilic anti-fog coating on the surface of glass, overcomes the defects of the prior art, and effectively solves the problem that the coating in the prior art is gradually damaged and disappears along with time.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the preparation method of the super-hydrophilic anti-fog coating on the surface of the glass comprises the following steps:
(1) Preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver;
(2) Cleaning the glass surface to be coated, and wiping the glass surface;
(3) Clamping and placing the glass by using clamping jaws, and heating the front and back of the glass to complete the whole temperature rise of the glass;
(4) Placing the clamped and heated glass into a solution tank for soaking for a period of time by a lifting mechanism, and lifting the glass by the lifting mechanism for placing and cooling;
(5) And after the colloid solution on the surface of the glass is cooled, polishing and polishing the two sides of the glass through a polishing mechanism, and spraying protective layers on the plating layers on the two sides of the glass again to obtain the super-hydrophilic anti-fog coating.
Preferably, the preparation method of the catalytic solution comprises the following steps: adding titanate into ethanol solvent, stirring, adding silicon dioxide and silver oxide, and fully stirring for reaction to obtain catalytic solution.
Preferably, the cleaning method is to soak and clean the glass by an alkaline degreasing agent to remove an oil film on the surface of the glass and keep the surface of the glass clean.
Preferably, the clamping jaw clamps and fixes the side edge of the glass, so that the clamping jaw is prevented from shielding the surface of the glass.
Preferably, the polishing mechanism polishes and removes the redundant coating colloid cooled on the two sides of the glass, so that the thickness of the coating on the two sides is kept between 50nm and 150 nm.
Preferably, the protective layer is coating liquid, and a layer of hydrophobic protective film with the thickness of 10-20nm is coated on the surface of the glass.
The beneficial effects of the invention are as follows:
the super-hydrophilic anti-fog coating prepared by the method has strong adhesion with glass, and can be protected by additionally coating the protective layer on the outer layer of the super-hydrophilic anti-fog coating, so that the wear resistance of the super-hydrophilic anti-fog coating is improved, and the performance of the super-hydrophilic anti-fog coating is not damaged after other solvents are cleaned.
Drawings
FIG. 1 is a schematic diagram of a clamping jaw clamping glass structure of a preparation method of a super-hydrophilic anti-fog coating on a glass surface;
FIG. 2 is a schematic diagram of a glass heating device for the preparation method of the super-hydrophilic anti-fog coating on the glass surface;
FIG. 3 is a schematic diagram of a glass heating operation structure of a preparation method of a super-hydrophilic anti-fog coating on a glass surface;
fig. 4 is a schematic structural diagram of a polishing mechanism of a preparation method of a super-hydrophilic anti-fog coating on a glass surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1:
referring to fig. 1-4, a method for preparing a super-hydrophilic anti-fog coating on a glass surface comprises the following steps:
(1) Preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver, wherein the preparation method of the photocatalytic solution comprises the following steps: adding titanate into ethanol solvent, stirring, adding silicon dioxide and silver oxide, and fully stirring for reaction to obtain catalytic solution;
(2) Cleaning the glass surface to be coated, and wiping the glass surface, wherein the cleaning method comprises the steps of soaking and cleaning the glass by an alkaline degreasing agent to remove an oil film on the glass surface and keep the glass surface clean;
(3) Clamping and placing the glass by using clamping jaws, heating the front and back of the glass, heating the whole glass to 50 ℃, and clamping and fixing the side edges of the glass by using the clamping jaws so as to avoid the surface of the glass from being shielded by the clamping jaws;
(4) Placing the clamped and heated glass into a solution tank for soaking in which a colloid solution is prepared through a lifting mechanism, and lifting the glass by the lifting mechanism for placing and cooling after soaking for 60 min;
(5) After the colloid solution on the surface of the glass is cooled, polishing the two sides of the glass through a polishing mechanism, and spraying protective layers on the plating layers on the two sides of the glass again to obtain the super-hydrophilic anti-fog coating, wherein the polishing mechanism polishes and removes the redundant coating colloid on the two sides of the glass after cooling, so that the thickness of the coating on the two sides is kept between 50nm and 100nm, the protective layers are coating liquid, and a layer of hydrophobic protective film with the thickness of 10nm is plated on the surface of the glass.
Example 2:
referring to fig. 1-4, a method for preparing a super-hydrophilic anti-fog coating on a glass surface comprises the following steps:
(1) Preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver, wherein the preparation method of the photocatalytic solution comprises the following steps: adding titanate into ethanol solvent, stirring, adding silicon dioxide and silver oxide, and fully stirring for reaction to obtain catalytic solution;
(2) Cleaning the glass surface to be coated, and wiping the glass surface, wherein the cleaning method comprises the steps of soaking and cleaning the glass by an alkaline degreasing agent to remove an oil film on the glass surface and keep the glass surface clean;
(3) Clamping and placing the glass by using clamping jaws, heating the front and back of the glass, heating the whole glass to 100 ℃, and clamping and fixing the side edges of the glass by using the clamping jaws so as to avoid the surface of the glass from being shielded by the clamping jaws;
(4) Placing the clamped and heated glass into a solution tank for soaking for 30min by a lifting mechanism, and lifting the glass by the lifting mechanism for placing and cooling;
(5) After the colloid solution on the surface of the glass is cooled, polishing the two sides of the glass through a polishing mechanism, and spraying protective layers on the plating layers on the two sides of the glass again to obtain the super-hydrophilic anti-fog coating, wherein the polishing mechanism polishes and removes the redundant coating colloid on the two sides of the glass after cooling, so that the thickness of the coating on the two sides is kept at 100-150nm, the protective layers are coating liquid, and a layer of hydrophobic protective film with the thickness of 20nm is plated on the surface of the glass.
Example 3:
referring to fig. 1-4, a method for preparing a super-hydrophilic anti-fog coating on a glass surface comprises the following steps:
(1) Preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver, wherein the preparation method of the photocatalytic solution comprises the following steps: adding titanate into ethanol solvent, stirring, adding silicon dioxide and silver oxide, and fully stirring for reaction to obtain catalytic solution;
(2) Cleaning the glass surface to be coated, and wiping the glass surface, wherein the cleaning method comprises the steps of soaking and cleaning the glass by an alkaline degreasing agent to remove an oil film on the glass surface and keep the glass surface clean;
(3) Clamping and placing the glass by using clamping jaws, heating the front and back of the glass, heating the whole glass to 150 ℃, and clamping and fixing the side edges of the glass by using the clamping jaws so as to avoid the surface of the glass from being shielded by the clamping jaws;
(4) Placing the clamped and heated glass into a solution tank for soaking for 15min by a lifting mechanism, and lifting the glass by the lifting mechanism for placing and cooling;
(5) After the colloid solution on the surface of the glass is cooled, polishing the two sides of the glass through a polishing mechanism, and spraying protective layers on the plating layers on the two sides of the glass again to obtain the super-hydrophilic anti-fog coating, wherein the polishing mechanism polishes and removes the redundant coating colloid on the two sides of the glass after cooling, so that the thickness of the coating on the two sides is kept at 50-125nm, the protective layers are coating liquid, and a layer of hydrophobic protective film with the thickness of 15nm is plated on the surface of the glass.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The preparation method of the super-hydrophilic anti-fog coating on the surface of the glass is characterized by comprising the following steps of:
(1) Preparing a porous titanium dioxide photocatalytic solution doped with silicon dioxide and silver;
(2) Cleaning the glass surface to be coated, and wiping the glass surface;
(3) Clamping and placing the glass by using clamping jaws, and heating the front and back of the glass to complete the whole temperature rise of the glass;
(4) Placing the clamped and heated glass into a solution tank for soaking for a period of time by a lifting mechanism, and lifting the glass by the lifting mechanism for placing and cooling;
(5) And after the colloid solution on the surface of the glass is cooled, polishing and polishing the two sides of the glass through a polishing mechanism, and spraying protective layers on the plating layers on the two sides of the glass again to obtain the super-hydrophilic anti-fog coating.
2. The method for preparing the super-hydrophilic anti-fog coating on the glass surface according to claim 1, wherein the method for preparing the catalytic solution in (1) is as follows: adding titanate into ethanol solvent, stirring, adding silicon dioxide and silver oxide, and fully stirring for reaction to obtain catalytic solution.
3. The method for preparing a super-hydrophilic anti-fog coating on a glass surface according to claim 1, wherein the cleaning method in (2) is to soak and clean the glass by an alkaline degreasing agent, remove an oil film on the glass surface and keep the glass surface clean.
4. The method for preparing the super-hydrophilic anti-fog coating on the surface of glass according to claim 1, wherein the clamping jaw clamps and fixes the side edge of the glass, so that the clamping jaw is prevented from shielding the surface of the glass.
5. The method for preparing the super-hydrophilic anti-fog coating on the surface of glass according to claim 1, wherein the polishing mechanism polishes and removes the redundant coating colloid cooled on the two sides of the glass, so that the thickness of the coating on the two sides is kept between 50nm and 150 nm.
6. The method for preparing the super-hydrophilic anti-fog coating on the surface of glass according to claim 1, wherein the protective layer is a coating liquid, and a layer of hydrophobic protective film with the thickness of 10-20nm is coated on the surface of the glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310014459.6A CN116282945A (en) | 2023-01-05 | 2023-01-05 | Preparation method of super-hydrophilic anti-fog coating on glass surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310014459.6A CN116282945A (en) | 2023-01-05 | 2023-01-05 | Preparation method of super-hydrophilic anti-fog coating on glass surface |
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| Publication Number | Publication Date |
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| CN116282945A true CN116282945A (en) | 2023-06-23 |
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| CN202310014459.6A Pending CN116282945A (en) | 2023-01-05 | 2023-01-05 | Preparation method of super-hydrophilic anti-fog coating on glass surface |
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| CN (1) | CN116282945A (en) |
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- 2023-01-05 CN CN202310014459.6A patent/CN116282945A/en active Pending
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