CN110563341A - High-alumina glass frosting liquid and preparation method thereof - Google Patents
High-alumina glass frosting liquid and preparation method thereof Download PDFInfo
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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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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Abstract
The invention discloses a high-alumina glass frosting liquid and a preparation method thereof, wherein the high-alumina glass frosting liquid comprises the following components in parts by weight: 30-45 parts of ammonium bifluoride, 5-15 parts of citric acid, 2-5 parts of barium sulfate, 4-10 parts of starch, 2-6 parts of bentonite, 10-20 parts of ferric trichloride, 5-15 parts of potassium fluoride, 6-13 parts of potassium nitrate, 2-6 parts of hydrofluoric acid and 10-30 parts of water. The frosting liquid has low manufacturing cost and high production yield, and the prepared anti-dazzle glass has the characteristics of high glossiness, low flash point, low roughness and good anti-dazzle effect.
Description
Technical Field
The invention belongs to the technical field of glass surface processing, and particularly relates to a high-alumina glass frosting liquid and a preparation method thereof.
Background
The AG (Anti-glass) glass is also called Anti-glare glass, and the Anti-glare glass has lower reflectance compared with common glass by specially treating the surface of the glass, reduces the reflection of the screen and ensures that a display picture is clearer and more vivid. The manufacture of AG glass generally is divided into three processes: spraying, coating and etching. The AG glass is sprayed by an evaporation coating mode, and a layer of chemical substances is coated on the surface of the glass to form concave-convex particles so as to achieve an anti-dazzle effect; the coated AG glass is prepared by depositing a film on the surface of glass to form a substance capable of resisting light reflection on the surface; etching AG glass is a process of etching the surface of glass by chemical etching to form a surface having uneven surface. Compared with spraying and coating AG glass, the etched AG glass has the characteristics of wear resistance, good stability and the like, and is widely accepted by the market.
The etching AG is generally performed by using a frosting solution or powder and a frosting paste to achieve a chemical etching effect. The principle is basically the same, the chemical corrosion is carried out on the surface of the glass through the generated hydrofluoric acid, so that insoluble matters are produced on the surface of the glass and are attached to the surface of the glass, and the uneven rough surface is obtained through the non-uniform etching process. And finally, removing attachments on the surface of the glass by chemical polishing to obtain the AG glass. The frosting liquid is prepared with inorganic fluoride, acid or acid compound, stuffing, assistant, etc. In the prior art, patents with patent publication numbers CN101215097A, CN1154951A, and CN1400184A all use components with strong volatility of hydrochloric acid, the stability of the etching solution is poor, and the industrial production process has large variation, resulting in low production yield. In patent application documents CN101654330A and CN103030301A, the raw materials used in the above-mentioned arabic resins are expensive, and therefore, the cost for producing the frosting solution is high.
In addition, the AG glass in the market is mainly soda-lime glass. Compared with soda-lime glass, high-alumina glass has the advantages of good chemical stability, high mechanical strength and the like, and the demand of the high-alumina glass in the field of display cover plates is gradually increased due to Al in the high-alumina glass2O3the content is more than 12 percent, the hardness is higher, the frosting liquid which can be used for the soda-lime glass is not suitable for the high-alumina glass, the etching stability is poor, and the production yield cannot be guaranteed.
Disclosure of Invention
The invention provides the high-alumina glass frosting liquid and the preparation method thereof, the manufacturing cost is low, the production yield is high, and the prepared anti-dazzle glass has the characteristics of high glossiness, low flash point, low roughness and good anti-dazzle effect.
The invention provides a high-alumina glass frosting liquid which comprises the following components in parts by weight: 30-45 parts of ammonium bifluoride, 5-15 parts of citric acid, 2-5 parts of barium sulfate, 4-10 parts of starch, 2-6 parts of bentonite, 10-20 parts of ferric trichloride, 5-15 parts of potassium fluoride, 6-13 parts of potassium nitrate, 2-6 parts of hydrofluoric acid and 10-30 parts of water.
In a further optimized scheme, 32 parts of ammonium bifluoride, 9 parts of citric acid, 5 parts of barium sulfate, 5 parts of starch, 3 parts of bentonite, 13 parts of ferric trichloride, 8 parts of potassium fluoride, 9 parts of potassium nitrate, 5 parts of hydrofluoric acid and 13 parts of water.
Further, sodium cellulose is added into the raw materials, and accounts for 0.5 percent of the total amount of the raw materials, so that the viscosity of the solution is improved.
Further, 30% of the amount of the ammonium bifluoride is replaced by a mixture of ammonium fluoride and ammonium fluorosilicate, wherein the weight ratio of the ammonium fluoride to the ammonium fluorosilicate is 5: 1. By the replacement, the cost can be reduced appropriately.
The invention also relates to a preparation method of the high-alumina glass frosting solution, which comprises the following steps:
Weighing the raw materials according to the proportion, uniformly stirring water, ammonium bifluoride, citric acid, ferric trichloride, potassium fluoride, potassium nitrate, hydrofluoric acid and barium sulfate, adding starch and bentonite, uniformly stirring, and aging to obtain the high-alumina glass frosting solution.
Furthermore, the aging temperature is 35-45 ℃, and the aging time is more than 48 h.
The invention has the following beneficial effects:
the frosting solution is a multi-component mixed solution, after weak hydrofluoric acid formed in the mixed solution reacts with glass to generate fluosilicic acid, the fluosilicic acid is combined with potassium ions, iron ions, ammonium ions and the like in the frosting solution to form small and uniform fluosilicate, and the fluosilicate blocks the corrosion of the hydrofluoric acid on the glass on the surface of the high-alumina glass, so that a frosted surface is formed on the surface of the high-alumina glass by non-uniform etching.
The frosting surface formed by the frosting liquid has the characteristics of low roughness, no flash point, high haze and adjustable glossiness through simple chemical polishing, and can be applied to the high-standard display industry. Different from the problem that other frosting powder can not reach no flash point. Because the addition amount of the bentonite needs to be controlled, the bentonite cannot be added too much, otherwise, the frosting effect is influenced. The large addition amount can cause the poor fluidity of the frosting solution, and cause the bad effects of uneven frosting on the surface of the glass, large difference of the integral glossiness and the like.
The frosting liquid can solve the problems of high hardness and difficult etching of high-alumina glass through a finely prepared double salt system. The low roughness and flash point requirements are achieved by utilizing an etching environment formed by a strongly oxidizing monovalent potassium salt and a trivalent iron salt.
When the frosting solution is prepared, in order to ensure the stability and the mixing effect of a frosting solution preparation system, the adding sequence needs to be controlled, the easily soluble raw materials are added firstly, then the difficultly miscible raw materials are added, and the frosting solution is obtained by further aging after fully mixing and is used for frosting treatment of the high-alumina glass.
The yield of the common high-aluminum frosting powder is about 60 percent generally, the comprehensive yield of the frosting powder provided by the invention can reach over 75 percent and the performance is better, and the frosting powder provided by the invention can control etching defects (such as crystal points, stripes, dark stripes and the like) in the etching and forming processes and can etch large-size glass. The glossiness of the AG glass formed by etching can reach more than 100, and the roughness can be reduced to below 0.070 μm.
Detailed Description
The invention will be further elucidated with reference to the following examples.
Example 1:
the high-alumina glass frosting liquid comprises the following components in parts by weight: 10kg of ammonium bifluoride, 2.5kg of citric acid, 1.5kg of barium sulfate, 1.4kg of starch, 1.6kg of bentonite, 4.2kg of ferric trichloride, 2.9kg of potassium fluoride, 2.2kg of potassium nitrate, 1.8kg of hydrofluoric acid and 4.2kg of water.
The specific preparation method comprises the following steps:
Weighing the raw materials according to the proportion, uniformly stirring water, ammonium bifluoride, citric acid, ferric trichloride, potassium fluoride, potassium nitrate, hydrofluoric acid and barium sulfate, adding starch and bentonite, uniformly stirring, and aging at the aging temperature of 35-45 ℃ for more than 48h to obtain the high-alumina glass frosting solution.
The prepared high-alumina glass frosting solution is used for high-alumina glass anti-glare etching, the same group of frosting solution is adopted for high-alumina glass anti-glare etching for multiple times, and specific parameters and results are shown in the following table 1.
TABLE 1
Example 2:
the high-alumina glass frosting liquid comprises the following components in parts by weight: 9.5kg of ammonium bifluoride, 1.6kg of citric acid, 0.7kg of barium sulfate, 1.3kg of starch, 0.8kg of bentonite, 3.2kg of ferric trichloride, 1.6kg of potassium fluoride, 2.0kg of potassium nitrate, 0.8kg of hydrofluoric acid and 3.5kg of water.
The preparation method is the same as example 1.
Weighing the raw materials according to the proportion, uniformly stirring water, ammonium bifluoride, citric acid, ferric trichloride, potassium fluoride, potassium nitrate, hydrofluoric acid and barium sulfate, adding starch and bentonite, uniformly stirring, and aging at the aging temperature of 35-45 ℃ for more than 48h to obtain the high-alumina glass frosting solution.
the prepared high-alumina glass frosting solution is used for high-alumina glass anti-glare etching, the same group of frosting solution is adopted for high-alumina glass anti-glare etching for multiple times, and specific parameters and results are shown in the following table 2.
TABLE 2
Example 3:
The high-alumina glass frosting liquid comprises the following components in parts by weight: 13kg of ammonium bifluoride, 4.2kg of citric acid, 1.55kg of barium sulfate, 2.8kg of starch, 1.8kg of bentonite, 5kg of ferric trichloride, 4kg of potassium fluoride, 3.6kg of potassium nitrate, 1.8kg of hydrofluoric acid and 7kg of water.
The preparation method is the same as example 1.
Weighing the raw materials according to the proportion, uniformly stirring water, ammonium bifluoride, citric acid, ferric trichloride, potassium fluoride, potassium nitrate, hydrofluoric acid and barium sulfate, adding starch and bentonite, uniformly stirring, and aging at the aging temperature of 35-45 ℃ for more than 48h to obtain the high-alumina glass frosting solution.
The prepared high-alumina glass frosting solution is used for high-alumina glass anti-glare etching, the same group of frosting solution is adopted for high-alumina glass anti-glare etching for multiple times, and specific parameters and results are shown in the following table 3.
TABLE 3
Claims (6)
1. The high-alumina glass frosting liquid is characterized by comprising the following components in parts by weight: 30-45 parts of ammonium bifluoride, 5-15 parts of citric acid, 2-5 parts of barium sulfate, 4-10 parts of starch, 2-6 parts of bentonite, 10-20 parts of ferric trichloride, 5-15 parts of potassium fluoride, 6-13 parts of potassium nitrate, 2-6 parts of hydrofluoric acid and 10-30 parts of water.
2. The high alumina glass frosting solution according to claim 1, wherein: 32 parts of ammonium bifluoride, 9 parts of citric acid, 5 parts of barium sulfate, 5 parts of starch, 3 parts of bentonite, 13 parts of ferric trichloride, 8 parts of potassium fluoride, 9 parts of potassium nitrate, 5 parts of hydrofluoric acid and 13 parts of water.
3. the high alumina glass frosting solution according to claim 1, wherein: sodium cellulose is also added into the raw materials, and accounts for 0.5 percent of the total amount of the raw materials.
4. the high alumina glass frosting solution according to claim 1, wherein: 30% of the amount of the ammonium bifluoride is replaced by a mixture of ammonium fluoride and ammonium fluorosilicate, wherein the weight ratio of the ammonium fluoride to the ammonium fluorosilicate is 5: 1.
5. The method for preparing the high alumina glass frosting solution according to any one of claims 1 to 4, characterized by comprising the following steps:
Weighing the raw materials according to the proportion, uniformly stirring water, ammonium bifluoride, citric acid, ferric trichloride, calcium fluoride, potassium nitrate, hydrofluoric acid and barium sulfate, adding starch and bentonite, uniformly stirring, and aging to obtain the high-alumina glass frosting solution.
6. The method of claim 5, wherein: the aging temperature is 35-45 ℃, and the aging time is more than 48 h.
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Cited By (23)
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| CN110845147A (en) * | 2019-12-26 | 2020-02-28 | 佛山晶美莱科技有限公司 | Frosting liquid |
| CN111233339A (en) * | 2020-03-21 | 2020-06-05 | 郑州恒昊光学科技有限公司 | Glass etching solution, high-alumina-silica glass etching method and high-alumina-silica glass with texture on surface |
| CN111410433A (en) * | 2020-04-16 | 2020-07-14 | 郑州恒昊光学科技有限公司 | Method for manufacturing flash point effect of rear cover glass of mobile phone |
| 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 |
| CN111756896A (en) * | 2020-06-02 | 2020-10-09 | Oppo广东移动通信有限公司 | Glass shell assembly, manufacturing method thereof and electronic equipment |
| CN111908800A (en) * | 2020-08-20 | 2020-11-10 | 海南中航特玻科技有限公司 | Water-soluble anti-dazzle high-alumina glass etching solid reagent and high-alumina glass etching process |
| CN112062476A (en) * | 2020-08-17 | 2020-12-11 | 苏州铱诺化学材料有限公司 | Vertical glass anti-dazzling treatment system and treatment process |
| CN112110655A (en) * | 2020-09-02 | 2020-12-22 | 杭州万程科技有限公司 | Production process and detection method of cover plate glass for touch panel |
| CN112456809A (en) * | 2020-12-21 | 2021-03-09 | 蓝思科技（长沙）有限公司 | Composition for glass etching and etching process |
| CN112521021A (en) * | 2020-12-08 | 2021-03-19 | 广东山之风环保科技有限公司 | Sodium-calcium glass frosting liquid and preparation method thereof |
| CN112521022A (en) * | 2020-12-08 | 2021-03-19 | 广东山之风环保科技有限公司 | Aluminum-silicon glass frosting liquid and application thereof |
| CN113213770A (en) * | 2021-05-30 | 2021-08-06 | 宜昌南玻显示器件有限公司 | Local AG glass processing method |
| CN113480183A (en) * | 2021-06-28 | 2021-10-08 | 江西沃格光电股份有限公司 | High-alumina glass frosting powder, frosting method of high-alumina glass, frosted glass and application |
| CN113651540A (en) * | 2021-08-16 | 2021-11-16 | 江西沃格光电股份有限公司 | Frosting composition, frosting liquid and preparation method thereof, and frosting soda-lime glass and preparation method thereof |
| CN113880447A (en) * | 2021-10-29 | 2022-01-04 | 宜昌南玻显示器件有限公司 | Low-flash-point AG glass surface treatment composition and application thereof |
| CN114031304A (en) * | 2021-11-27 | 2022-02-11 | Oppo广东移动通信有限公司 | High-alumina glass etching liquid, anti-dazzle high-alumina glass, shell assembly and electronic equipment |
| CN114751648A (en) * | 2022-04-01 | 2022-07-15 | 惠州市百时达化工有限公司 | Frosting liquid medicine for high-alumina-silica glass etching surface lattice directional arrangement and process |
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| CN115536284A (en) * | 2021-06-30 | 2022-12-30 | 安徽金龙浩光电科技有限公司 | Preparation process of AG glass with pearl sand effect |
| CN115557707A (en) * | 2022-10-21 | 2023-01-03 | 江西沃格光电股份有限公司 | Frosting powder composition, frosting liquid, preparation method, frosting method and application |
| CN115594408A (en) * | 2022-09-27 | 2023-01-13 | 广州亦盛环保科技有限公司（Cn） | High-flash-sand-effect liquid medicine and preparation method of flash-sand-effect glass |
| CN116081955A (en) * | 2022-12-30 | 2023-05-09 | 咸宁南玻光电玻璃有限公司 | Frosting composition, frosting liquid, flash sand effect high-alumina glass, and preparation method and application thereof |
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Application publication date: 20191213 |