CN110937820A - Super-wear-resistant anti-fingerprint anti-glare coating and preparation method and application thereof - Google Patents
Super-wear-resistant anti-fingerprint anti-glare coating and preparation method and application thereof Download PDFInfo
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- CN110937820A CN110937820A CN201911307895.2A CN201911307895A CN110937820A CN 110937820 A CN110937820 A CN 110937820A CN 201911307895 A CN201911307895 A CN 201911307895A CN 110937820 A CN110937820 A CN 110937820A
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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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
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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
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
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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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
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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
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/31—Pre-treatment
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Surface Treatment Of Glass (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a super wear-resistant anti-fingerprint anti-glare coating, a preparation method and application thereof, wherein the preparation process comprises the following steps: preheating the cleaned and dried glass, and then bombarding the glass by plasma to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees; and uniformly spraying the AG coating on the surface of the glass, baking and curing, then performing plasma bombardment to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees, spraying the AF coating, and baking to obtain the super-wear-resistant fingerprint-resistant anti-glare coating. According to the invention, a novel AG liquid medicine is sprayed, and meanwhile, a layer of AF liquid medicine is coated on the AG coating, and the AG coating can form a compact cross-linked network with the AF coating while reacting with glass, so that a thin coating with the effects of anti-glare and anti-fingerprint and ultrahigh wear resistance is formed. The coating not only endows the glass surface with excellent performance, but also has silky hand feeling, high production efficiency and yield, and is environment-friendly.
Description
Technical Field
The invention relates to the fields of touch screens, optical glass, building glass and the like, in particular to a super-wear-resistant anti-fingerprint anti-glare coating and a preparation method and application thereof.
Technical Field
With the continuous progress of society, the innovation of science and technology is continuous. The updating of various mobile phones and computers is more frequent, the requirements of people on touching electronic display screens are higher and higher, the screens are required to have excellent performance, the glass surfaces of the screens have good touch feeling, and the experience feeling of users is convenient to improve. The exposed state of the touch panel makes the touch panel easily polluted by fingerprints, skin grease, sweat, cosmetics and the like during use, and the appearance and the use are influenced. Therefore, in order to improve the appearance and the visibility, the demand for a technique for preventing fingerprints from adhering to the surface of a display or a technique for easily removing dirt has been increasing, and it is required to provide a good water-and oil-repellent and dirt-repellent layer on the surface of a touch panel, and to provide a good wear resistance without damaging the surface during wiping. Meanwhile, the anti-glare function is added, screen reflection is reduced, and the experience of the user is further improved.
At present, the traditional anti-glare method etches a substrate through a chemical agent, so that an uneven microstructure is formed on the surface of glass after corrosion, the method has the effect of scattering light, the yield is low, the environmental pollution is serious, the surface glossiness and the roughness of the glass are difficult to obviously adjust by the existing AG liquid medicine spraying, and meanwhile, the AG layer is easy to peel off due to environmental and use factors, so that the wear resistance of the glass is seriously influenced. Secondly, the glass can obtain the anti-dazzle effect by means of sand blasting and polishing, but the treatment mode has the defects of difficult yield control and high cost, and is not suitable for mass production. The effect of the common AG spraying liquid medicine is only about 30 percent of that of the traditional etching, no reaction crosslinking exists between the coating and the glass, the adhesive force is poor, the coating is easy to peel off, the wear resistance is poor, and the hand feeling is also poor. And the effect of the common AG spraying liquid medicine is only about 30 percent of that of the traditional etching, and the coating and the glass have no reaction crosslinking, so that the adhesive force is poor, the coating is easy to peel off, the wear resistance is poor, and the hand feeling is also poor.
Even if the AF coating and the AG coating are coated at the same time, the AF coating cannot react with the AG coating again, and the coating has no adhesive force after being coated, thereby seriously influencing the wear resistance; even if reacted, the resulting products have poor properties.
Disclosure of Invention
The invention aims to provide a super-wear-resistant anti-glare anti-fingerprint coating, and a preparation method and application thereof, so as to solve the problems in the background technology. The coating has high durability and excellent low surface energy, can effectively prevent dirt such as water drops or fingerprints, skin grease, sweat, cosmetics and the like from being attached to the surface of glass, has an anti-fouling and easy-cleaning effect, has an anti-glare effect, is super-wear-resistant, and provides more superior experience for users.
In order to achieve the purpose, the invention provides the following technical scheme:
the preparation method of the super wear-resistant anti-fingerprint anti-glare coating is characterized by comprising the following steps of:
preheating the cleaned and dried glass, and then bombarding the glass by plasma to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees; uniformly spraying the AG coating on the surface of the glass, baking and curing, then performing plasma bombardment to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees, spraying the AF coating, and baking to obtain the super-wear-resistant anti-fingerprint anti-glare coating;
the AG coating is a suspension consisting of 8-11 parts of silica colloidal particles with different particle diameters, 4-8 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 2-4 parts of gamma-glycidoxypropyl trimethoxy silane, 0.01-0.2 part of hydrochloric acid and 76-85 parts of alcohol solvent in parts by mass;
wherein, in the silica gel particles with different particle diameters, the content of the silica gel particles with the particle diameter of 190-210nm is 27-40 parts by mass, the content of the silica gel particles with the particle diameter of 350-380nm is 40-53 parts by mass, and the content of the silica gel particles with the particle diameter of 400-440nm is 20-27 parts by mass;
the AF coating comprises, by mass, 0.4-0.5 parts of a spray coating liquid composed of Z-type perfluoropolyether siloxane (Dajin UD509, Fuji kang GT320, Xinyue KY197 and the like), 45-70 parts of perfluoroethane and 30-55 parts of hydrofluoroether.
In a preferable scheme, the alcohol solvent of the AG coating comprises, by mass, 25-30 parts of methanol, 30-50 parts of ethanol and 25-45 parts of ethylene glycol.
The specific preparation process comprises the following steps:
(a) cleaning glass by a cleaning machine, then putting the glass into a tunnel furnace to dry the water on the surface of the glass, and simultaneously preheating the glass to 50-100 ℃;
(b) bombarding the preheated glass by using plasma to fully activate the surface groups of the glass, and simultaneously enabling the contact angle of water drops on the surface of the glass to be less than or equal to 10 degrees;
(c) the AG coating is quickly and evenly sprayed on the surface of the glass, and the spraying amount is 60-100g/m2Then, the mixture enters a tunnel furnace for baking and curing under the condition of 150-200 ℃ for 15-30 min;
(d) after the glass sprayed with the anti-dazzle coating is cooled to the room temperature of 20-30 ℃, repeating the step (b), and then spraying the AF coating to the surface of the glass, wherein the spraying amount is 70-90g/m2And then the coating enters a tunnel furnace with the temperature of 150-.
In the preparation process, the thickness of the prepared AG film layer is 2-5um, and the thickness of the AF film layer is 20-30 nm.
In the preparation process, the water drop angle of the prepared super wear-resistant fingerprint-resistant anti-glare coating is not less than 110 degrees, the oil drop angle (diiodomethane) is not less than 65 degrees, and the pencil hardness is not less than 7H.
The super wear-resistant anti-fingerprint anti-glare coating is applied as a glass product coating.
The super-wear-resistant fingerprint-resistant anti-glare coating is applied as a mobile phone or computer screen coating.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the AF coating and the AG coating can form a layer of rugged microstructure on the surface of glass through a series of chemical reactions, so that the direct light of light can be reduced, the diffuse reflection can be increased, the reflection influence can be blurred, and the reduction of the reflection degree besides the glare can be prevented.
Compared with the traditional chemical etching means, the method has the advantages of high production efficiency and yield and environmental friendliness.
The coating disclosed by the invention can effectively prevent fingerprints, oil and dust, has very high light transmittance, and can form firm chemical bonds with the glass surface and be tightly combined; and partial chain segments in the components migrate and gather to the surface of the coating due to the action of surface energy, so that the coating is endowed with excellent water-resistant oil-resistant stain-resistant performance.
According to the invention, a crosslinking reaction can also occur among molecular chains, so that the hardness of the coating can be improved, and the wear resistance and durability of the coating are further enhanced.
In combination with the reasons, the coating prepared by the invention has excellent performances of ultra-wear resistance, anti-glare and anti-fingerprint.
The glass substrate needs to be sprayed with two coatings of anti-glare (AG) liquid medicine and super-wear-resistant anti-fingerprint (AF) agent. In the prior art, even if the two coatings are obtained simultaneously, the common sprayed AG liquid medicine is not crosslinked with the glass surface, so that the coating and the glass have poor adhesion, are easy to peel off, and the surface cannot be treated by spraying AF liquid medicine again. The AG spraying liquid medicine can perform dehydration condensation reaction with hydroxyl on the surface of glass to form a compact cross-linking structure, so that the adhesive force between an AG coating and the glass is greatly increased, and after the surface is subjected to secondary plasma treatment, the AG coating prepared by the invention can perform cross-linking reaction with an AF coating again, so that the adhesive force between the coatings and the glass is improved, and the integral friction resistance is also improved.
The anti-glare (AG) liquid medicine and the super-wear-resistant anti-fingerprint (AF) agent which are sprayed on the surface of the glass substrate can both chemically react with the surface of the glass, so that the friction resistance of the glass is greatly improved.
And the silica colloidal particles with different particle sizes in the AG liquid medicine form an uneven rough microstructure on the surface of the glass, so that the anti-dazzle performance is improved to a great extent.
Moreover, the glossiness, the roughness and the haze of the glass can be adjusted according to actual needs, the whole process is convenient and fast, and the production efficiency is high. The excellent performances of the two coatings are cooperated and superposed, and the excellent effects of friction resistance, anti-glare and anti-fingerprint performance and friction resistance are obtained.
Drawings
Fig. 1 is a schematic structural diagram of a super-wear-resistant anti-fingerprint anti-glare coating.
In the figure: 1-AF coating, 2-AG anti-glare coating and 3-glass.
FIG. 2 is a photograph comparing products after treatment according to comparative example 1 and example 1.
Detailed Description
Glass material: kangning GG4
Spraying a machine table:
glass preheating temperature: 75 deg.C
Scheme one (comparative example 1): friction resistance performance test after conventional AG liquid medicine spraying
Spraying AG coating (FSTER company: PD-4001) by conventional method; spraying amount: 87g/m2(ii) a Baking conditions: at 185 deg.C for 25min
Scheme two (example 1): after the AG coating is sprayed, the AF coating is coated again to test the friction resistance
The AG spraying liquid medicine AG-3005 comprises:
9g of silica gel particles with different particle sizes, (wherein the particle size of 190nm is 2.9 g, the particle size of 350nm is 4.1 g, and the particle size of 400nm is 2 g); containing 7g of 3- (2, 3-glycidoxy) propyltrimethoxysilane, 2.5 g of gamma-glycidoxypropyltrimethoxysilane, 0.2g of hydrochloric acid and 81.3 g of an alcoholic solvent (containing 22 g of methanol, 28.8 g of ethanol and 30.5 g of ethylene glycol)
Spraying amount: 84g/m2；
Baking conditions: multiplying at 185 ℃ for 25 min;
spraying AF liquid medicine: AF-3004, containing 0.5 grams of Z-type perfluoropolyethersiloxane and 65 grams of perfluoroethane and 34.5 grams of hydrofluoroether), spray amount: 72g/m2(ii) a Baking conditions: at 150 deg.C for 15min
Items for abrasion resistance test: 3000 times of Bonstar0000# steel wool; friction area: 1cm x 4cm
Test data:
comparative example 2
The same procedure as in example 1 was repeated, except that the AG coating was changed to the following composition: 15g of silica gel particles with different particle sizes, 8g of 3- (2, 3-glycidoxy) propyl trimethoxy silane, 4g of gamma-glycidoxypropyl trimethoxy silane, 0.03g of hydrochloric acid and 72.97g of alcohol solvent to form AG spraying suspension; when the AG suspension liquid with the components is used, the spray gun is easily blocked in the construction process due to the over-high content of the silica gel particles, so that poor spraying is caused, the production efficiency is influenced, and the product yield is low.
Comparative example 3
The same procedure as in example 1 was repeated, except that the AG coating was changed to the following composition:
AG coating: 8g of silica gel particles with different particle diameters, 10g of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 3g of gamma-glycidoxypropyl trimethoxy silane, 1g of hydrochloric acid and 78g of alcohol solvent to form AG spraying suspension; the obtained coating is easy to hydrolyze, the storage stability of the product is seriously influenced, and the spraying equipment can be corroded in the using process due to strong acidity.
Comparative example 4
The same procedure as in example 1 was repeated, except that the AF coating material was changed to the following composition:
the content of the main agent Z-type perfluoropolyether siloxane is changed into 0.6g, 0.7g, 0.8g, 0.9g and 1g respectively, so that the oil stain on the surface of the glass can not be cleaned seriously, the appearance of the glass product is influenced, and the price is greatly increased.
Comparative example 5
The same procedure as in example 1 was repeated, except that the AF coating material was changed to the following composition:
when the content of the main agent Z-type perfluoropolyether siloxane is changed into 0.1g,0.2g and 0.3g, the friction resistance of the coating is poor, so that the surface performance of the glass cannot reach the standard.
Claims (7)
1. The preparation method of the super wear-resistant anti-fingerprint anti-glare coating is characterized by comprising the following steps of: preheating the cleaned and dried glass, and then bombarding the glass by plasma to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees; uniformly spraying the AG coating on the surface of the glass, baking and curing, then performing plasma bombardment to ensure that the contact angle of water drops on the surface of the glass is less than or equal to 10 degrees, spraying the AF coating, and baking to obtain the super-wear-resistant anti-fingerprint anti-glare coating;
the AG coating is a suspension consisting of 8-11 parts of silica colloidal particles with different particle diameters, 4-8 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 2-4 parts of gamma-glycidoxypropyl trimethoxy silane, 0.01-0.2 part of hydrochloric acid and 76-85 parts of alcohol solvent in parts by mass;
wherein, in the silica gel particles with different particle diameters, the content of the silica gel particles with the particle diameter of 190-210nm is 27-40 parts by mass, the content of the silica gel particles with the particle diameter of 350-380nm is 40-53 parts by mass, and the content of the silica gel particles with the particle diameter of 400-440nm is 20-27 parts by mass;
the AF coating comprises, by mass, 0.4-0.5 part of Z-type perfluoropolyether siloxane, 50-65 parts of perfluoroethane and 30-55 parts of hydrofluoroether.
2. The method according to claim 1, wherein the alcohol solvent of the AG paint comprises, by mass, 25 to 30 parts of methanol, 30 to 50 parts of ethanol, and 25 to 45 parts of ethylene glycol.
3. The preparation method according to claim 1 or 2, characterized in that the specific preparation process is as follows:
(a) cleaning glass by a cleaning machine, then putting the glass into a tunnel furnace to dry the water on the surface of the glass, and simultaneously preheating the glass to 50-100 ℃;
(b) bombarding the preheated glass by using plasma to fully activate the surface groups of the glass, and simultaneously enabling the contact angle of water drops on the surface of the glass to be less than or equal to 10 degrees;
(c) the AG coating is quickly and evenly sprayed on the surface of the glass, and the spraying amount is 60-100g/m2Then, the mixture enters a tunnel furnace for baking and curing under the condition of 150-200 ℃ for 15-30 min;
(d) after the glass sprayed with the anti-dazzle coating is cooled to the room temperature of 20-30 ℃, repeating the step (b), and then spraying the AF coating to the surface of the glass, wherein the spraying amount is 70-90g/m2Then the mixture enters a tunnel furnace with the temperature of 150-Fingerprint-resistant anti-glare coating.
4. The super wear-resistant anti-fingerprint anti-glare coating prepared by the preparation method of any one of claims 1 to 3, wherein the AG film layer is 2 to 5um thick, and the AF film layer is 20 to 30nm thick.
5. The super wear-resistant anti-fingerprint anti-glare coating prepared by the preparation method of any one of claims 1 to 3, which is characterized in that the water drop angle of the super wear-resistant anti-fingerprint anti-glare coating is not less than 110 degrees, the oil drop angle (diiodomethane) is not less than 65 degrees, and the pencil hardness is not less than 7H.
6. Use of the ultra-abrasion-resistant anti-fingerprint anti-glare coating prepared by the preparation method according to any one of claims 1 to 3, characterized in that the ultra-abrasion-resistant anti-fingerprint anti-glare coating is used as a coating of a glass product.
7. Use of the ultra-wear-resistant anti-fingerprint anti-glare coating prepared by the preparation method according to any one of claims 1 to 3, wherein the ultra-wear-resistant anti-fingerprint anti-glare coating is used as a screen coating of a mobile phone or a computer.
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Cited By (6)
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| CN111470780A (en) * | 2020-04-10 | 2020-07-31 | 广州视源电子科技股份有限公司 | Preparation method of glass panel, display screen and display device |
| CN111807709A (en) * | 2020-07-22 | 2020-10-23 | 深圳南玻应用技术有限公司 | Anti-dust coated glass, preparation method and application |
| CN113953166A (en) * | 2021-11-11 | 2022-01-21 | 杭州老板电器股份有限公司 | Easy-to-clean coating on metal surface and processing method of easy-to-clean coating |
| CN114105485A (en) * | 2021-12-15 | 2022-03-01 | 宁波威霖住宅设施有限公司 | Easy-to-clean coating process for glass surface |
| CN115849730A (en) * | 2022-12-14 | 2023-03-28 | 耀华(秦皇岛)玻璃技术开发有限公司 | Processing method of anti-glare thin plate glass |
| CN116217088A (en) * | 2023-03-29 | 2023-06-06 | 芜湖长信科技股份有限公司 | Vehicle-mounted curved surface anti-glare AG cover plate and manufacturing process and manufacturing equipment thereof |
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| CN114105485A (en) * | 2021-12-15 | 2022-03-01 | 宁波威霖住宅设施有限公司 | Easy-to-clean coating process for glass surface |
| CN115849730A (en) * | 2022-12-14 | 2023-03-28 | 耀华(秦皇岛)玻璃技术开发有限公司 | Processing method of anti-glare thin plate glass |
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