Glass frosting liquid as well as preparation method and application thereof in preparation of frosted glass

Abstract

The invention discloses glass frosting liquid as well as a preparation method and application thereof in preparation of frosted glass, and belongs to the technical field of glass surface treatment. The frosted glass liquid comprises frosted powder and concentrated hydrochloric acid, and the mass volume ratio of the frosted powder to the concentrated hydrochloric acid is 10: 3. The frosting powder comprises a component A and a component B in a mass ratio of 3: 7, wherein the component A comprises the following raw materials: a fluorine-containing compound, inorganic sulfate, organic acid salt and sulfamic acid; and the component B is ammonium bifluoride. The fluorine-containing compound is one or more of ammonium bifluoride, sodium hexafluoroaluminate or calcium fluoride; the inorganic sulfate is ammonium sulfate and barium sulfate; the organic acid salt is one or more of sodium gluconate or sodium dodecyl sulfate. The prepared frosted glass has the characteristics of high surface roughness and uniform distribution, meanwhile, good light transmission performance is kept, the surface appearance of the frosted glass can be accurately controlled by adjusting process parameters, and the frosted glass can meet diversified requirements of different application fields such as building decoration, optical devices and electronic products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass surface treatment, in particular to a glass frosting liquid, a preparation method thereof and application thereof in frosting glass preparation. BACKGROUND

[0002] Frosted glass, also known as ground glass or haze glass, is a type of glass that has a semi-transparent, hazy appearance achieved through chemical or physical treatment. The complex mechanism of chemical frosted glass reveals the interaction between chemistry and art. The main chemical components of glass are silicon oxide compounds and metal oxides. The SiO2 content of existing clear glass is more than 70%, followed by Na2O, CaO and other compounds. Chemical frosting, mainly using ammonium bifluoride NH4·HF2, dissolves part of the silicon oxide on the surface layer of the glass, destroys the complex surface network structure of the silicon oxide compound on the surface, and leaves a textured surface. The residual metal alkali oxide further reacts with hydrofluoric acid to generate fluoride and silicon fluoride, etc., which destroys the original smoothness of the glass and the flatness and smoothness of the glass surface. This transformation causes the effect of diffused light, resulting in a scattering effect on the glass surface, changing the original transparency. This is commonly known as "glass frosting". High-roughness glass frosting converts the polished surface of glass into a micron-level grainy textured surface through chemical etching, thereby enhancing the glass frosting process. The process principle is relatively complex, and is the result of the combined action of ionization balance, chemical reaction, dissolution and recrystallization, and ion replacement.

[0003] This type of glass has a wide range of applications in architectural decoration, furniture, electronic products, etc. Its main advantages are that it can provide privacy protection, allow light transmission, and has a unique aesthetic effect. Therefore, it is widely used in the fields of architecture, furniture, bathroom, electronic display screens, etc. In architecture, frosted glass is commonly used for office partitions, bathroom doors, windows and skylights, etc. In furniture, frosted glass is used for table tops, cabinet doors, etc. In electronic products, frosted glass is used on display screens to reduce glare and reflection. Traditional methods of producing frosted glass mainly include mechanical sandblasting, acid etching and spraying, etc. However, these methods have some shortcomings, such as low production efficiency, complex process, serious environmental pollution, etc. Therefore, it is of great significance to develop an efficient and environmentally friendly method for producing frosted glass.

[0004] Frosted glass as a new type of building decoration material has been widely used in Europe, America and other developed countries since the early 20th century. With the progress of science and technology and the improvement of environmental protection requirements, there is a higher demand for the light transmission effect of frosted glass, and the roughness of frosted glass directly affects the quality and uniformity of the frosted light transmission effect, so various types of frosted glass are produced. New frosted glass manufacturing technologies are emerging, mainly focusing on the following aspects: 1. Environmentally friendly chemical treatment: research and development of low-toxicity, low-pollution chemical etching solution to reduce environmental pollution and waste liquid treatment cost. For example, using organic acid instead of traditional hydrofluoric acid for glass surface treatment. 2. Physical and chemical combined treatment: combining physical treatment with chemical treatment to improve surface roughness, and then performing chemical etching to obtain more uniform frosted effect. 3. Application of nanotechnology: using nanomaterials to modify the glass surface, forming a nanostructure on the glass surface by self-assembly or sol-gel method to achieve frosted effect. However, the current methods have problems such as complex production, high production cost or easy environmental pollution, and the uniformity of the frosted effect on the glass surface is low. SUMMARY

[0005] The purpose of the present application is to provide a glass frosted liquid, its preparation method and application in the preparation of frosted glass. By optimizing the ratio of frosted glass powder and the preparation process parameters, the roughness and light transmission performance of the frosted glass are significantly improved, while the uniformity and stability of the surface roughness are ensured. The deficiencies of traditional frosted glass in light transmission and surface texture are solved, and the preparation process is simple, which improves the glass surface treatment speed and further improves the production efficiency. Moreover, the prepared frosted glass liquid is an environmentally friendly chemical treatment liquid, which can reduce environmental pollution and waste liquid treatment cost.

[0006] To achieve the above purpose, the present application provides a glass frosted liquid, which comprises frosted powder and concentrated hydrochloric acid solvent, wherein the mass-volume ratio of the frosted powder to the concentrated hydrochloric acid solvent is 10:3, and the mass fraction of the concentrated hydrochloric acid solvent is 36%.

[0007] The frosted powder comprises component A and component B, and the mass ratio of component A to component B is 3:7; wherein component A comprises the following raw materials: fluorine-containing compound, inorganic sulfate, organic acid salt and sulfamic acid; component B is ammonium bifluoride.

[0008] Preferably, the fluorine-containing compound is one or more of ammonium bifluoride, sodium hexafluoroaluminate or calcium fluoride; the inorganic sulfate is ammonium sulfate and barium sulfate; the organic acid salt is one or more of sodium gluconate or sodium dodecyl sulfonate.

[0009] Preferably, the mass of component A is 120g, and the mass of component B is 280g.

[0010] The application further provides a preparation method of the glass frosting liquid, wherein the raw materials of component A are mixed and placed in a beaker, concentrated hydrochloric acid is first added and mixed, then component B is added into the beaker, concentrated hydrochloric acid is continuously added and mixed, the beaker is placed in a water bath to be heated and stirred to be dissolved, and after the heating is stopped, the stirring is carried out at room temperature to obtain the glass frosting liquid.

[0011] Preferably, the temperature of the water bath is 40℃, the time of heating and stirring is 40min, and the time of stirring at room temperature is 20-30h.

[0012] The application further provides the application of the glass frosting liquid, and the glass frosting liquid is used for preparing frosted glass.

[0013] Preferably, the glass substrate is pretreated, then the glass substrate is placed in the frosted glass liquid to be frosted and etched to obtain the frosted glass.

[0014] Preferably, the glass substrate has a first surface and a second surface opposite to the first surface, an adhesive tape is adhered to the second surface of the glass substrate, the glass substrate is immersed and washed with concentrated hydrochloric acid and ethanol in sequence, then the glass substrate is repeatedly washed with deionized water and anhydrous ethanol and dried, and the pretreated glass substrate is obtained.

[0015] Preferably, the pretreated glass substrate is suspended above the frosted glass liquid, and the time is started to be counted, the first surface of the glass substrate is frosted and etched in the frosted glass liquid by slowly lifting up and down, the glass substrate is placed under running water to be washed for multiple times to remove the residual frosted glass liquid on the surface, then the surface moisture is absorbed by non-woven fabric, and the treated frosted glass is obtained after natural drying.

[0016] Preferably, the temperature of the frosted glass liquid is 15-25℃, and the time of frosted and etched treatment is 2.5-3min.

[0017] The unique surface treatment method provided by the application has the following advantages compared with the traditional coating or plating process: firstly, the crystal structure formed has excellent stability and is not easy to fall off; secondly, the crystals are uniformly distributed on the glass surface, and the surface roughness is effectively controlled; and finally, the surface quality is ensured while the light transmission performance of the glass is well maintained. The surface treatment technology with stability, uniformity and optical performance can be widely applied to multiple industrial fields.

[0018] The technical solutions of the application are further described in detail below by means of the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 SEM image of the 807 frosted glass prepared by the frosted liquid of Example 2;

[0020] Figure 2 SEM image of 807 fritted glass for the fritting liquid formulation of Example 4;

[0021] Figure 3 SEM image of 807 fritted glass for the fritting liquid formulation of Example 6;

[0022] Figure 4 SEM image of 807 fritted glass for the fritting liquid formulation of Example 9;

[0023] Figure 5 Graph of the effect of fritting temperature on etching degree;

[0024] Figure 6 SEM image of 807 fritted glass for the fritting liquid formulation of Example 15, fritting temperature 25℃ (air conditioner control);

[0025] Figure 7 SEM image of 807 fritted glass for the fritting liquid formulation of Example 15, fritting temperature 30℃ (air conditioner control);

[0026] Figure 8 SEM image of 807 fritted glass for the fritting liquid formulation of Example 15, fritting temperature 25℃ (water bath control);

[0027] Figure 9 SEM image of 807 fritted glass for the fritting liquid formulation of Example 15, fritting temperature 25℃ (air conditioner control) and different etching times. DETAILED DESCRIPTION

[0028] The present application provides a 807 fritted glass fritting powder, a glass fritting liquid, a preparation method thereof and a fritted glass. The technical solution is as follows:

[0029] The fritting powder provided by the present application is accurately weighed according to mass percentage, and the total amount is 100%, which contains component A and component B, and the mass ratio of component A to component B is 3:7. Specifically, component A includes ammonium sulfate, barium sulfate, ammonium bifluoride, sulfamic acid, sodium gluconate, sodium hexafluoroaluminate, calcium fluoride, and sodium dodecyl sulfonate; component B is ammonium bifluoride.

[0030] In the present application, component A takes ammonium bifluoride 14.04g, calcium fluoride 0-0.60g, sodium hexafluoroaluminate 0.48g, ammonium sulfate 39.12g, barium sulfate 65.22-66.12g, sodium gluconate 0.24-0.51g, sulfamic acid 0-0.18g, and sodium dodecyl sulfonate 0-0.36g; component B takes ammonium bifluoride 280g.

[0031] The application further provides a preparation method of the frosted glass liquid, the frosted glass liquid comprising the frosted powder and a solvent, and the solvent being concentrated hydrochloric acid with a mass concentration of 36%. The preparation method comprises the following steps: taking 400 g of the frosted powder sample, firstly mixing 120 g of raw materials of component A in a 500 ml plastic beaker, then adding 60 ml of the concentrated hydrochloric acid, and then adding 280 g of component B into the beaker, and continuously adding 60 ml of the concentrated hydrochloric acid, placing the plastic beaker in a 40℃ water bath, stopping heating after 40 min of stirring and dissolving, and continuously stirring at room temperature for 20-30 h to obtain the frosted glass liquid.

[0032] The application further provides a preparation method of the frosted glass, the preparation method comprising the following steps:

[0033] (1) pretreating the glass substrate

[0034] The glass substrate has a first surface and a second surface opposite to the first surface, an adhesive tape is adhered to the second surface of the glass substrate, the glass substrate is immersed and washed by using concentrated hydrochloric acid and ethanol in sequence, and then the glass substrate is repeatedly washed by using deionized water and anhydrous ethanol and dried to obtain the pretreated glass substrate.

[0035] (2) performing frosted etching treatment on the first surface of the glass substrate

[0036] The pretreated glass substrate is suspended above the frosted glass liquid, and the frosted etching treatment is performed on the first surface of the glass substrate by slowly lifting and lowering the glass substrate in the frosted liquid at 15-25℃ for 2.5-3 min, the glass substrate is washed under running water to remove the residual frosted liquid on the surface, then the surface water is absorbed by using non-woven fabric, and the frosted glass is obtained after natural drying.

[0037] The technical solutions of the application are further described below by means of the accompanying drawings and examples. It should be understood that the examples are only used for illustrating the application and are not used for limiting the scope of the application, and any changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principle of the application are equivalent replacement manners and are included in the protection scope of the application. In addition, it should be understood that after reading the content of the application, those skilled in the art can make various changes and modifications to the application, and these equivalent forms also fall within the scope defined by the appended claims of the application and belong to the protection scope of the application.

[0038] The term "embodiment" is mentioned in this text means that the specific features, structures or properties described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association between other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0039] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0040] Unless otherwise specified, the reagents, instruments, equipment and performance test methods used in the present application are the reagents, instruments, equipment and methods commonly used by those skilled in the art.

[0041] Embodiment

[0042] The embodiment provides a preparation method of glass frosting liquid, and specifically comprises the following steps: selecting different amounts of ammonium hydrogen fluoride, calcium fluoride, sodium hexafluoroaluminate, ammonium sulfate, barium sulfate, sodium gluconate, sulfamic acid and sodium dodecyl sulfonate as component A, placing them in a 500ml plastic beaker, first adding 60ml of 36% concentrated hydrochloric acid, then adding 280g of ammonium hydrogen fluoride as component B into the beaker, continuing to add 60ml of 36% concentrated hydrochloric acid, placing the above plastic beaker in a 40°C water bath, stirring and dissolving for 40min, then stopping heating, and continuing to stir at room temperature for 20hh to obtain the glass frosting liquid.

[0043] The embodiment also provides a preparation method of frosted glass, and specifically comprises the following steps:

[0044] (1) Pretreatment of glass substrate

[0045] Take 55mm*55mm*3mm size glass substrate, the glass substrate has a first surface and a second surface opposite to the first surface, use 60mm width of adhesive tape to stick on the second surface of the glass substrate, set a protective layer, facilitate the subsequent processing cleaning and frosting operation; then pretreat the glass substrate, use 36% mass fraction of concentrated hydrochloric acid to soak the glass substrate for 3min, then use ethanol to soak the pickled glass substrate for 3min. Then use deionized water to rinse repeatedly, use non-woven fabric to wipe the water on the glass surface, finally use anhydrous ethanol to rinse the glass, after rinsing, place it on the non-woven fabric to dry, then add a layer of long adhesive tape on the surface of the glass substrate as a handle for pulling treatment, that is, the pretreated glass substrate is obtained.

[0046] (2) frosting etching treatment on the first surface of the glass substrate

[0047] Hang the treated glass substrate above the prepared frosting glass liquid, start timing, slowly pull up and down the treated glass substrate in the glass frosting liquid at different temperatures, repeat this step, then stop pulling, rinse the glass substrate under running water for several times to remove the residual frosting liquid on the surface, then use non-woven fabric to absorb the water on the surface, dry naturally to obtain the treated frosting glass.

[0048] The composition of the glass frosting powder and the glass frosting liquid, the preparation conditions and the frosting etching treatment conditions of the frosting glass are shown in Tables 1-3.

[0049] Table 1

[0050]

[0051]

[0052] Table 2

[0053]

[0054]

[0055] Table 3

[0056]

[0057] Note that “--” means that this kind of raw material is not added in the frosting glass powder.

[0058] Use SJ-210 type surface roughness tester to test the etching degree of the frosting glass obtained in Examples 1-15, record the etching degree of the frosting glass surface. Perform three repeated experiments, calculate the average value of the etching degree of the frosting glass surface. The test results of the surface etching degree of the frosting glass obtained in Examples 1-15 are shown in Table 4.

[0059] Table 4

[0060]

[0061]

[0062] From the analysis of the experimental data of Examples 1-3, it can be found that the addition amount of calcium fluoride has a significant impact on the etching effect of frosted glass. In Example 1 without the addition of calcium fluoride, the etching degree of frosted glass is only 0.436 μm; when 0.36 g of calcium fluoride is added (Example 2, SEM image as shown in Figure 1 ), the etching degree is significantly improved to 1.169 μm, with an increase of 168%; further increasing the content of calcium fluoride (Example 3) makes the etching degree fall to 0.742 μm, but still increases by 70% compared with Example 1. This change trend shows that the appropriate addition of calcium fluoride can significantly improve the frosting effect, and the mechanism is: (1) the reaction of fluoride ions produced by the ionization of calcium fluoride in the solution with silicates in the glass accelerates the surface etching; (2) the introduction of calcium ions changes the electrochemical properties of the solution, promoting the nucleation of crystals; (3) the addition of calcium fluoride optimizes the pH value of the frosting solution, improving the reaction activity. Based on the experimental results and theoretical analysis, it is determined that 0.36 g is the best addition amount of calcium fluoride, which can not only ensure good etching effect, but also meet the diversified needs of frosting degree in different application fields.

[0063] In Examples 4-5, the content of sodium dodecyl sulfate is adjusted, and according to the etching degree test results of the obtained frosted glass, it is found that when the content of sodium dodecyl sulfate is increased from 0 g to 0.24 g, the roughness of the frosted glass also gradually increases from 0.436 μm to 1.350 μm, and the SEM image is as shown in Figure 2 . And increasing the content of sodium dodecyl sulfate can also improve the smoothness of the frosted glass, because sodium dodecyl sulfate can act as a surfactant, adding it to the glass frosting solution can reduce the surface tension and promote the uniform progress of the etching reaction. But it is found that when the content of magnesium fluorosilicate is greater than 0.36 g, the frosted glass will appear mottling and etching degree weakening phenomenon, which may be due to the excessive surfactant changing the chemical equilibrium of the solution. Therefore, considering the surface quality and process stability, the content of sodium dodecyl sulfate is not further increased.

[0064] Example 6 Figure 3The sodium gluconate content was further increased compared to Example 7, reaching 0.36 g and 0.51 g respectively. The resulting frosted glass etching depth increased to 1.417 μm and 0.937 μm. However, the frosted glass obtained in Example 7 was noticeably rough and uneven, with significant differences in the etching depth measured on each side. This indicates that increasing the sodium gluconate content did not have a significant positive correlation with the etching depth.

[0065] Comparative analysis of Examples 8 and 9 clearly shows the significant effect of the amount of aminosulfonic acid added on the etching degree of the frosted glass. When the amount of aminosulfonic acid added increases from 0g to 0.18g, the etching degree of the frosted glass significantly increases to 1.657μm. The SEM image of the frosted glass obtained in Example 9 is shown below. Figure 4 As shown, this change highlights the crucial role of aminosulfonic acid in the frosting process. The improved etching effect of aminosulfonic acid may stem from the H+ produced by the ionization of aminosulfonic acid in solution. + Ions can promote the hydrolysis of fluorosilicates, increase the concentration of active fluoride ions, and the buffering effect of aminosulfonic acid helps maintain the stability of the reaction system, ensuring the uniformity of the etching process. It is noteworthy that even small changes in the aminosulfonic acid content can cause significant changes in the etching degree, fully demonstrating its sensitivity in frosting systems. In practical applications, the amount of aminosulfonic acid added needs to be precisely controlled to achieve the best frosting effect.

[0066] In Examples 10-15, the frosted glass melt was processed at temperatures of 15°C, 20°C, and 25°C, respectively. The surface etching rate measurement results of the frosted glass obtained at different temperatures are shown in Table 5. Figure 5 As shown in the scanning electron microscope, Figure 6 The average surface etching degree increased from 0.531 μm at 10℃, to 0.806 μm at 15℃, to 1.222 μm at 20℃, and finally to 2.030 μm at 25℃. That is, the etching degree of the frosted glass gradually increased with increasing temperature, and the increase was significant. This indicates that increasing the etching temperature significantly promotes the frosted glass treatment effect. This is because the increased temperature accelerates the chemical reaction rate between fluorosilicate and the glass surface, promotes the diffusion and migration of reaction ions, which is beneficial to the uniform nucleation and growth of polyhedral crystals, while also improving the wettability of the frosting solution and regulating the reaction equilibrium. Furthermore, high temperature can dissolve reaction byproducts, reducing their hindrance to the reaction. However, when the temperature increases to 30℃, as... Figure 5 As shown, the roughness actually decreased to 1.920 μm. The reason for this is that due to the excessively high temperature, uniform crystals began to form on the glass surface, thus reducing the roughness, as indicated by scanning electron microscopy. Figure 7Therefore, the temperature increase needs to be controlled within a reasonable range. Excessively high temperatures may cause the reaction to be too fast, affecting the uniformity and stability of the crystal structure, and increasing energy consumption and process control difficulty. Therefore, it is necessary to set a reasonable temperature range.

[0067] Table 5

[0068]

[0069]

[0070] Furthermore, using air conditioning to control the actual operating temperature of the frosting solution, although there is a 4-5℃ difference between the air conditioning temperature and the actual operating temperature, does not affect the etching of the frosted glass surface and will not cause surface decals. If a water bath is used to directly control the frosting operating temperature, surface decals will occur, such as... Figure 8 As shown. This is because there are two common temperature control methods in the laboratory: one is to control the temperature of the entire external experimental environment through an air conditioning system, and the other is to directly control the temperature of the reaction system through a constant temperature water bath or thermostat. Air heat transfer in an air conditioning system is a temperature control method suitable for large workshops. Since raising the temperature of the frosting liquid through air heat transfer will not cause any temperature fluctuations. Air heat transfer is a steady-state heat transfer, which means that the temperature of each point in the heat transfer system changes only with location and does not change with time. This means that if the temperature of a certain point in the system is measured at a certain moment and measured again at different moments later, the temperature value obtained will be the same. Air heat transfer has a constant heat transfer rate: under steady-state heat transfer conditions, the heat transfer rate through each part of the system is constant. This means that the rate of heat transfer in the system will not change with time, thus maintaining the thermal equilibrium state of the system. However, water bath temperature control may fluctuate due to evaporation, heat transfer, etc. This leads to mottled appearance on the frosted glass surface. The frosted glass sample prepared by this invention has transparent filaments and spots in cold winters, while the frosted product has a rougher appearance in hot summers. Therefore, air conditioning can be used in winter to simulate a summer indoor environment and achieve a frosted effect. Through experiments at different temperatures, it was found that the frosting effect is most ideal when the frosting liquid temperature is around 25℃.

[0071] In Examples 12-15, the etching temperature was 25°C, and the etching times were 2, 3, and 4 minutes. The surface etching rate measurement results of the resulting frosted glass showed that the etching degree of the frosted glass gradually increased with increasing time (see Table 6). The frosted roughness can also be obtained from SEM comparison (see...). Figure 9 The texture obtained by etching at 2 minutes is relatively fine, while the texture obtained by etching at 3 and 4 minutes is relatively coarser.

[0072] Table 6

[0073]

[0074] Through experiments, it is found that the frosting time of the glass product is 1 minute and 30 seconds to 5 minutes at room temperature, the frosting effect is relatively stable, and the appearance can satisfy people, so the operation is easy to master. In order to shorten the production cycle, reduce the use amount of the frosting agent, and reduce the production cost, it is considered that the frosting time is preferably 2 minutes and 30 seconds to 3 minutes.

[0075] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can still be modified or replaced by equivalents, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A glass frosting liquid, characterized by: The glass frosting liquid comprises frosting powder and concentrated hydrochloric acid solvent, wherein the mass-volume ratio of the frosting powder to the concentrated hydrochloric acid solvent is 10:3, and the mass fraction of the concentrated hydrochloric acid solvent is 36%. The frosting powder comprises component A and component B, and the mass ratio of the component A to the component B is 3:7; wherein the component A comprises the following raw materials: fluorine-containing compound, inorganic sulfate, organic acid salt and sulfamic acid; and the component B is ammonium bifluoride.

2. A glass frosting solution according to claim 1, characterized in that: The fluorine-containing compound is one or more of ammonium bifluoride, sodium hexafluoroaluminate or calcium fluoride; the inorganic sulfate is ammonium sulfate and barium sulfate; and the organic acid salt is one or more of sodium gluconate or sodium dodecylsulfate.

3. The glass frosting solution of claim 1, wherein: The mass of the component A is 120 g, and the mass of the component B is 280 g.

4. A method of preparing a glass frosting solution according to any one of claims 1 to 3, characterized in that: The raw materials of the component A are mixed in a beaker, concentrated hydrochloric acid is added first, then the component B is added into the beaker, and concentrated hydrochloric acid is continuously added, the beaker is placed in a water bath for heating and stirring to dissolve, and the glass frosting liquid is obtained after stopping heating and stirring at room temperature.

5. The method for preparing a glass frosting solution according to claim 4, characterized in that: The temperature of the water bath is 40℃, the time for heating and stirring is 40 min, and the time for stirring at room temperature is 20-30 h.

6. Use of a glass frosting solution according to any one of claims 1 to 3, characterized in that: The glass frosting liquid is used for preparing frosting glass.

7. Use of a glass frosting liquid according to claim 6, characterized in that: The glass substrate is pretreated, and then is placed in the frosting glass liquid for frosting etching treatment to obtain frosting glass.

8. Use of a glass frosting liquid according to claim 7, characterized in that: The glass substrate has a first surface and a second surface opposite to the first surface, an adhesive tape is adhered to the second surface of the glass substrate, the glass substrate is immersed and washed with concentrated hydrochloric acid and ethanol in sequence, and then is repeatedly washed with deionized water and anhydrous ethanol and dried, to obtain the pretreated glass substrate.

9. The use of a glass frosting solution according to claim 7, characterized in that: The pretreated glass substrate is suspended above the frosting glass liquid, and the time is started to count, the first surface of the glass substrate is subjected to frosting etching treatment by slowly lifting and lowering the glass substrate in the frosting liquid, the glass substrate is washed under running water after lifting and lowering to remove the residual frosting liquid on the surface, then the surface moisture is absorbed by non-woven fabric, and the treated frosting glass is obtained after natural drying.

10. Use of a glass frosting liquid according to claim 9, characterized in that: The temperature of the frosting glass liquid is 15-25℃, and the time for frosting etching treatment is 2.5-3 min.

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