High-toughness and anti-dazzle sodium-calcium nano microcrystalline glass as well as preparation method and application thereof

Abstract

The invention relates to the technical field of microcrystalline glass, and discloses high-toughness and anti-dazzle sodium-calcium nano microcrystalline glass, a preparation method and application, the nano microcrystalline glass is composed of a glass raw material, a nucleating agent and a crystallization agent; the preparation method comprises the following steps: (1) grinding and uniformly mixing the glass raw materials in proportion to obtain a mixture; (2) heating the mixture until the mixture is molten to obtain a glass melt; (3) pouring the glass melt into a preheated mold for molding, and cooling and annealing to obtain base glass; (4) adding a nucleating agent and a crystallizing agent into the base glass; and (5) carrying out one-step heat treatment on the basic glass to obtain the sodium-calcium nano microcrystalline glass. And (6) carrying out surface coating treatment on the sodium-calcium nano microcrystalline glass to obtain the high-toughness and anti-glare sodium-calcium nano microcrystalline glass. The microcrystalline glass prepared by the invention is compact in structure and high in toughness, has the characteristic of high anti-glare performance, and can be used as a microcrystalline glass material of a flat glass cover plate of a mobile phone.

Description

Technical Field

[0001] The present invention relates to the technical field of microcrystalline glass, and in particular to a high-toughness, anti-glare soda-lime nano-microcrystalline glass, a preparation method and an application thereof. Background Art

[0002] Nanocrystalline glass plays a vital role in modern industrial and consumer electronics. It not only offers excellent scratch and impact resistance but also extends product lifespan. Glass-ceramics are a material created by crystallizing conventional glass to create a crystalline phase within the glass. Because the nanocrystals are typically tens of nanometers in size, significantly smaller than the wavelength of visible light, they exhibit high transmittance. Consequently, nanocrystalline glass has attracted increasing attention and research interest in recent years. Currently, glass-ceramics prepared from glass blanks exhibit high grain size stability and uniform distribution, effectively eliminating common defects such as pores. These properties contribute to the superior performance and reliability of nanocrystalline glass compared to ceramics.

[0003] Generally speaking, the formation of the crystalline phase depends on the composition of the base glass and the heat treatment process. Existing nano-microcrystalline glass requires a higher crystallization temperature and a longer crystallization time, and often adopts a two-step heat treatment method, which increases production energy consumption. In addition, the crystalline phase content is relatively low, which affects the toughness, flexural strength and other mechanical properties of the microcrystalline glass.

[0004] Anti-glare glass is a diffuse reflective matte structure manufactured using surface etching technology. It combines the high hardness of glass with excellent optical properties and can meet the various needs of high-hardness applications. The etching process can form a uniform micro-texture on the glass surface, which not only improves the surface's wear resistance, but also reduces light reflection and enhances anti-glare performance. Existing anti-glare glass is mostly based on ordinary soda-lime glass. Although it has high hardness and good impact resistance, it lacks toughness. In the subsequent anti-glare etching process, the strength will be further reduced, making it difficult to meet the needs of high-end scenarios. How to achieve a synergistic improvement in high toughness and anti-glare performance is an urgent problem to be solved. Summary of the Invention

[0005] In response to the above problems, the technical problem to be solved by the present invention is to provide a high-toughness, anti-glare sodium-lime nano-ceramic glass, a preparation method and an application. The obtained microcrystalline glass has a dense structure, high toughness and high anti-glare characteristics.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0007] A method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass comprises the following steps:

[0008] (1) Grind and mix the glass raw materials SiO2, Al2O3, CaO, MgO, and Na2O in proportion to obtain a mixture;

[0009] (2) heating the mixture to 1500-1600°C for melting for 2-3 hours, then cooling it to 1300-1400°C for 1-2 hours to obtain a glass melt;

[0010] (3) Pour the glass melt into a preheated mold for molding, and cool the molded glass to 550°C-600°C for annealing for 1-2 hours, and then naturally cool it to room temperature to obtain the base glass;

[0011] (4) Adding nucleating agent P2O5 and crystallizing agent MgF2 to the base glass to adjust the crystal phase ratio;

[0012] (5) The base glass was heated from room temperature to 640°C to 800°C at a heating rate of 5°C / min, kept at this temperature for 2.5 hours to allow the glass to fully crystallize, and finally cooled to room temperature to obtain soda-lime nano-ceramic glass;

[0013] (6) The sodium-lime nano-microcrystalline glass is screen-printed with protective oil, polished, and then cleaned and sprayed. After spraying, it is chemically etched and then chemically polished. Subsequently, nano-silica solution is sprayed on the glass surface to allow a secondary chemical reaction. Finally, it is baked and dried in an oven at 160°C for 30 minutes to obtain high-toughness, anti-glare sodium-lime nano-microcrystalline glass.

[0014] As a further improvement of the present invention, in step (1), the components of the glass raw material include, by mole percentage, 70–74% SiO2, 0–3% Al2O3, 6–12% CaO, 0–6% MgO, and 12–16% Na2O.

[0015] As a further improvement of the present invention, in step (2), the cooling rate is 5°C / min.

[0016] As a further improvement of the present invention, in step (4), the amount of the nucleating agent used is 1 mol% of the total molar amount of the glass raw materials; the amount of the crystallizing agent used is 10 wt% of the total mass of the glass raw materials.

[0017] As a further improvement of the present invention, in step (5), the grain size of the nano-ceramic glass is 50-100 nm.

[0018] As a further improvement of the present invention, in step (6), the cleaning spray is to use an alkaline cleaning agent or alcohol spray cleaning to remove oil stains on the glass surface.

[0019] As a further improvement of the present invention, in step (6), the chemical etching is first performed using an ammonium bifluoride solution to form micron-scale etching points in different directions on the glass surface, and then immersed in pure water three times to wash away the ammonium bifluoride solution on the surface, and finally blown dry with nitrogen.

[0020] As a further improvement of the present invention, in step (6), the chemical polishing is performed by fixing the glass on an acid-resistant bracket and immersing it in a hydrofluoric acid polishing tank or spraying it on a flat plate line for chemical polishing.

[0021] Soda-lime nano-ceramics glass was prepared as described above.

[0022] Application of soda-lime nano-glass-ceramics in mobile phone flat glass cover.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the coordinated action of various components in the glass base material, the present invention uses P2O5 as a nucleating agent and MgF2 as a crystallizing agent, resulting in a low amount of residual bubbles in the glass-ceramics. A one-step heat treatment process at a temperature of 640°C-800°C is used to achieve uniform distribution of nanocrystals in the soda-lime glass, resulting in small grain size and a relatively high crystalline phase content. The nanocrystals have a flexural strength (4pb) of >600 MPa, demonstrating excellent bending resistance.

[0025] 2. The present invention adopts a one-step heat treatment. The principle of one-step glass crystallization is to precisely control the temperature-time curve of a single heat treatment process, so that the glass can simultaneously and efficiently complete the two stages of nucleation and crystal growth within a specific temperature range, allowing the crystal nuclei to grow synchronously into fine microcrystals. By utilizing the coordinated regulation of nucleation and growth temperatures, a rapid and uniform transformation from the glass phase to the microcrystalline phase is achieved in a single heating, thereby obtaining glass with a dense structure and high toughness. Compared with the two-step method, the method does not require two heating-holding-cooling cycles, thus avoiding the interfacial stress caused by the temperature switching of the two-step method, reducing microcracks and porosity. At the same time, the grain size uniformity is better than that of the two-step method, with a grain deviation of less than 10%, while the grain deviation of the two-step method is generally 15%-20%.

[0026] 3. In the preparation process of the present invention, the base glass is first prepared, and then the nucleating agent P2O5 and the crystallizing agent MgF2 are added. Compared with the process of adding the nucleating agent and the crystallizing agent during the mixing process, the high-temperature volatilization / decomposition of the nucleating agent is reduced, which is conducive to maintaining surface activity and improving functionalization;

[0027] 4. The present invention adopts surface coating technology. First, protective oil is screen-printed on the glass surface to form a coating. Then, a polishing process is performed to remove ink residue on the glass surface. After cleaning and spraying, a diffuse reflective matte structure is produced on the surface of the nano-crystal glass by chemical etching. Finally, chemical polishing is performed. The chemical polishing process is first performed in a hydrofluoric acid polishing tank, and then nano-silica solution is sprayed to allow the glass surface to undergo a secondary chemical reaction. Since the surface of nano-silica is rich in silanol bonds, it will chemically react with the silanol bonds on the clean glass surface at 160°C to condense and form Silicon-oxygen bonding allows the nano-silica film to adhere firmly to the glass surface. At the same time, the nano-silica itself can also condense to form a protective film. Since the surface is a layer of accumulated nano-silica protective film, its surface hardness is almost the same as that of glass. Therefore, through the surface coating process, the original reflective surface of the micro-ceramic glass is transformed into a matte diffuse reflective surface, which can blur the reflection and prevent glare, reduce the reflectivity, and reduce light and shadow. At the same time, it maintains the high-toughness characteristics of micro-crystalline glass to obtain high-toughness, anti-glare nano-ceramic glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a SEM micromorphology image of the soda-lime glass-ceramics of Example 1 of the present invention; DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described below with reference to the examples.

[0030] Example 1

[0031] The glass raw materials are prepared according to the following molar percentages: SiO₂ 72%, Al₂O₃ 2%, CaO 9%, MgO 3%, and Na₂O 14%. The glass raw materials are preferably analytically pure, with a particle size preferably in the micrometer range. The total mass of the glass raw materials is 120.28 g (2 mol total), with 2.84 g of the nucleating agent P₂O₅ and 12.03 g of the crystallizing agent MgF₂ used.

[0032] A method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass comprises the following steps:

[0033] (1) Mixing: Grind and mix the glass raw materials SiO2, Al2O3, CaO, MgO, and Na2O in proportion to obtain a mixture;

[0034] (2) Melting: Pour the mixture into a crucible, place it in a silicon carbon rod electric furnace, heat it to 1550℃ and melt it for 3 hours, then cool it to 1350℃ at a cooling rate of 5℃ / min and keep it at that temperature for 2 hours to obtain a glass melt;

[0035] (3) Molding and annealing: Pour the glass melt into a preheated mold for molding, and cool the molded glass to 550°C and anneal it in a muffle furnace for 2 hours, then cool it naturally to room temperature to obtain the base glass;

[0036] (4) Adding nucleating agents and crystallizing agents: Add P2O5 nucleating agents and MgF2 crystallizing agents to the base glass to adjust the crystal phase ratio. The nucleating agents and crystallizing agents work together to induce spinodal phase separation, reduce the crystallization activation energy, and achieve better crystallization of the raw materials.

[0037] (5) Heat treatment: The base glass was heated from room temperature to 640°C at a heating rate of 5°C / min, kept at this temperature for 2.5 h to allow the glass to fully crystallize, and finally cooled to room temperature to obtain soda-lime nano-ceramics glass;

[0038] (6) Surface coating treatment: The nano-ceramic glass base material is screen-printed with protective oil, polished, and then cleaned and sprayed. After spraying, it is chemically etched and then chemically polished. Then, nano-silicon dioxide solution (mass concentration 8%, pH value 3, particle size 20-50nm) is sprayed to allow the glass surface to undergo a secondary chemical reaction. The spraying time is 90s, and finally it is baked and dried in an oven at 160℃ for 30min to obtain high-toughness, anti-glare sodium-calcium nano-ceramic glass;

[0039] Cleaning spray uses alkaline cleaning agent (5% mass concentration NaOH solution) to remove oil stains on the glass surface to obtain higher surface cleanliness.

[0040] Chemical etching uses ammonium bifluoride solution (mass concentration 10%) to corrode the glass surface at an etching temperature of 35°C, forming micron-sized etching points in different directions on the glass surface. The glass is then immersed in pure water three times to wash away the ammonium bifluoride solution on the surface, and finally blown dry with nitrogen.

[0041] Chemical polishing is to fix the glass on an acid-resistant bracket and immerse it in a hydrofluoric acid polishing tank for chemical polishing.

[0042] Figure 1 The SEM image of the soda-lime glass-ceramics prepared in Example 1 shows that the precipitated crystals have reached nanoscale size and are relatively evenly distributed, with a grain size of 50-100 nm.

[0043] Example 2

[0044] The glass raw materials are prepared according to the following molar percentages: SiO₂ 72%, Al₂O₃ 2%, CaO 9%, MgO 0–6%, and Na₂O 14%. The glass raw materials are preferably analytically pure, with a particle size preferably in the micrometer range. The total mass of the glass raw materials is 120.28 g (2 mol total). The amount of the nucleating agent P₂O₅ is 2.84 g, and the amount of the crystallizing agent MgF₂ is 12.03 g.

[0045] A method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass comprises the following steps:

[0046] (1) Mixing: Grind and mix the glass raw materials SiO2, Al2O3, CaO, MgO, and Na2O in proportion to obtain a mixture;

[0047] (2) Melting: Pour the mixture into a crucible, place it in a silicon carbon rod electric furnace, heat it to 1500℃ and melt it for 3 hours, then cool it to 1300℃ at a cooling rate of 5℃ / min and keep it at that temperature for 2 hours to obtain a glass melt;

[0048] (3) Molding and annealing: Pour the glass melt into a preheated mold for molding, and cool the molded glass to 550°C and anneal it in a muffle furnace for 2 hours, then cool it naturally to room temperature to obtain the base glass;

[0049] (4) Adding nucleating agents and crystallizing agents: Add P2O5 nucleating agents and MgF2 crystallizing agents to the base glass to adjust the crystal phase ratio. The nucleating agents and crystallizing agents work together to induce spinodal phase separation, reduce the crystallization activation energy, and achieve better crystallization of the raw materials.

[0050] (5) Heat treatment: The base glass was heated from room temperature to 640°C at a heating rate of 5°C / min, kept at this temperature for 2.5 h to allow the glass to fully crystallize, and finally cooled to room temperature to obtain soda-lime nano-ceramics glass;

[0051] (6) Surface coating treatment: The nano-ceramic glass base material is screen-printed with protective oil, polished, and then cleaned and sprayed. After spraying, it is chemically etched and then chemically polished. Then, nano-silicon dioxide solution (mass concentration 8%, pH value 3, particle size 20-50nm) is sprayed to allow the glass surface to undergo a secondary chemical reaction. The spraying time is 90s, and finally it is baked and dried in an oven at 160℃ for 30min to obtain high-toughness, anti-glare sodium-calcium nano-ceramic glass;

[0052] The cleaning spray is to first use an alkaline cleaning agent (5% NaOH solution by mass concentration) to remove oil stains on the glass surface to obtain a higher surface cleanliness.

[0053] Chemical etching uses ammonium bifluoride solution (mass concentration of 10%) to corrode the glass surface at an etching temperature of 35°C, forming micron-sized etching points in different directions on the glass surface. The glass is then immersed in pure water three times to wash away the ammonium bifluoride solution on the surface, and finally blown dry with nitrogen.

[0054] Chemical polishing is to fix the glass on an acid-resistant bracket and immerse it in a hydrofluoric acid polishing tank for chemical polishing.

[0055] Example 3

[0056] The glass raw materials are prepared according to the following molar percentages: SiO₂ 72%, Al₂O₃ 2%, CaO 9%, MgO 3%, and Na₂O 14%. The glass raw materials are preferably analytically pure, with a particle size preferably in the micrometer range. The total mass of the glass raw materials is 120.28 g (2 mol total). The amount of the nucleating agent P₂O₅ is 2.84 g, and the amount of the crystallizing agent MgF₂ is 12.03 g.

[0057] A method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass comprises the following steps:

[0058] (1) Mixing: Grind and mix the glass raw materials SiO2, Al2O3, CaO, MgO, and Na2O in proportion to obtain a mixture;

[0059] (2) Melting: Pour the mixture into a crucible, place it in a silicon carbon rod electric furnace, heat it to 1600℃ and melt it for 2 hours, then cool it to 1400℃ at a cooling rate of 5℃ / min and keep it at that temperature for 1 hour to obtain a glass melt;

[0060] (3) Molding and annealing: pour the glass melt into a preheated mold for molding, and cool the molded glass to 600°C and anneal it in a muffle furnace for 2 hours, then cool it naturally to room temperature to obtain the base glass;

[0061] (4) Adding nucleating agents and crystallizing agents: Add P2O5 nucleating agents and MgF2 crystallizing agents to the base glass to adjust the crystal phase ratio. The nucleating agents and crystallizing agents work together to induce spinodal phase separation, reduce the crystallization activation energy, and achieve better crystallization of the raw materials.

[0062] (5) Heat treatment: The base glass was heated from room temperature to 680°C at a heating rate of 5°C / min, kept at this temperature for 2.5 h to allow the glass to fully crystallize, and finally cooled to room temperature to obtain nano-ceramic glass;

[0063] (6) Surface coating treatment: The nano-ceramic glass base material is screen-printed with protective oil, polished, and then cleaned and sprayed. After spraying, it is chemically etched and then chemically polished. Then, nano-silicon dioxide solution (mass concentration 8%, pH value 3, particle size 20-50nm) is sprayed to allow the glass surface to undergo a secondary chemical reaction. The spraying time is 90s, and finally it is baked and dried in an oven at 160℃ for 30min to obtain high-toughness, anti-glare sodium-calcium nano-ceramic glass;

[0064] Cleaning spray uses alkaline cleaning agent (5% NaOH solution by mass concentration) to remove oil stains on the glass surface to obtain a higher surface cleanliness.

[0065] Chemical etching uses ammonium bifluoride solution (mass concentration of 10%) to corrode the glass surface at an etching temperature of 35°C, forming micron-sized etching points in different directions on the glass surface. The glass is then immersed in pure water three times to wash away the ammonium bifluoride solution on the surface, and finally blown dry with nitrogen.

[0066] Chemical polishing is to fix the glass on an acid-resistant bracket and immerse it in a hydrofluoric acid polishing tank for chemical polishing.

[0067] Example 4

[0068] The difference from Example 1 is that in step (5), the base glass is heated from room temperature to 760°C at a heating rate of 5°C / min, kept at this temperature for 2.5 hours to allow the glass to fully crystallize, and finally cooled to room temperature to obtain nano-ceramic glass;

[0069] Example 5

[0070] The difference from Example 1 is that in step (5), the base glass is heated from room temperature to 800°C at a heating rate of 5°C / min, kept at this temperature for 2.5 hours to allow the glass to fully crystallize, and finally cooled to room temperature to obtain nano-ceramic glass;

[0071] Comparative Example 1

[0072] The difference from Example 1 is that the heat treatment in step (5) is not performed; the remaining steps are the same as those in Example 1.

[0073] Comparative Example 2

[0074] The difference from Example 1 is that the surface coating treatment in step (6) is not performed; the remaining steps are the same as those in Example 1.

[0075] Comparative Example 3

[0076] The difference from Example 2 is that the surface coating treatment in step (6) is not performed; the remaining steps are the same as those in Example 2.

[0077] Comparative Example 4

[0078] The difference from Example 3 is that the surface coating treatment in step (6) is not performed, and the remaining steps are the same as those in Example 3.

[0079] Comparative Example 5

[0080] The difference from Example 4 is that the surface coating treatment in step (6) is not performed, and the remaining steps are the same as those in Example 4.

[0081] Comparative Example 6

[0082] The difference from Example 5 is that the surface coating treatment in step (6) is not performed, and the remaining steps are the same as those in Example 5.

[0083] Performance testing:

[0084] Four-axis bending strength tested using an electronic pressure testing machine.

[0085] The roughness is tested using a dynamic friction tester.

[0086] The haze is tested using a haze tester.

[0087] The performance test results of Examples 1-5 and Comparative Examples 1-6 are shown in Table 1.

[0088] Table 1 Performance test results of nano-ceramic glass in various embodiments and comparative examples

[0089]

[0090] As can be seen from Examples 1-5 and Comparative Example 1, at a heat treatment temperature of 640°C-800°C, the toughness values ​​of the heat-treated glass-ceramics range from 621.85 to 638.51 MPa, indicating a flexural strength (4pb) greater than 600 MPa, demonstrating excellent bending resistance. Furthermore, within this heat treatment temperature range, the toughness test values ​​of the nano-ceramics first increase and then decrease as the heat treatment temperature increases. The toughness value of the unheated glass is 423.51 MPa, indicating that the unheated glass has poor bending resistance. The heat treatment temperature of the glass-ceramics in Example 4 is 760°C. At around 760°C, the test value of the nano-ceramics is relatively high, reaching 638.51 MPa, indicating that this heat treatment temperature precipitates more nanocrystals, improving the bending strength.

[0091] The roughness and haze tests of Examples 1-5 and Comparative Examples 2-6 show that the surface-treated crystallized glass exhibits significantly improved roughness and haze compared to untreated crystallized glass. The surface coating treatment of the present invention involves etching the glass surface with a weak acid to create an uneven surface, then polishing away the tips of the uneven surfaces with a weak acid treatment to create a matte reflective surface, thereby increasing the roughness of the crystallized glass surface. A higher roughness, a rougher surface, increases light diffusion, reduces gloss, diffusely reflects incident light, significantly reduces the risk of glare, and thus provides an anti-glare effect.

[0092] In summary, the present invention adds a nucleating agent and a crystallizing agent after mixing, melting, forming, and annealing the glass raw materials, and then uses a one-step heat treatment to precipitate nano-scale particles inside the glass, thereby increasing the contact area of ​​dislocations and thus improving the mechanical properties of the glass. Finally, the surface is coated by silk-screening a protective oil on the glass surface to form a coating, and then performing a polishing treatment to remove ink residue on the glass surface. After cleaning and spraying, the glass surface is changed to an uneven surface by chemical etching, and then nano-silicon dioxide is sprayed. The silanol bonds of the nano-silicon dioxide are condensed with the silanol bonds on the glass surface to form an aged silica protective film layer on the surface, so that the surface hardness is almost the same as that of the glass, thereby obtaining a high-toughness, anti-glare soda-lime nano-ceramic glass.

[0093] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. Any equivalent changes or modifications completed under the technical spirit suggested by the present invention should be covered by the patent of the present invention.

Claims

1. A method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass, characterized in that: The method comprises the following preparation steps: (1) Grind and mix the glass raw materials SiO2, Al2O3, CaO, MgO, and Na2O in proportion to obtain a mixture; (2) heating the mixture to 1500-1600°C for melting for 2-3 hours, then cooling it to 1300-1400°C for 1-2 hours to obtain a glass melt; (3) Pour the glass melt into a preheated mold for molding, and cool the molded glass to 550°C-600°C for annealing for 1-2 hours, and then naturally cool it to room temperature to obtain the base glass; (4) Adding nucleating agent P2O5 and crystallizing agent MgF2 to the base glass to adjust the crystal phase ratio; (5) The base glass was heated from room temperature to 640°C to 800°C at a heating rate of 5°C / min, kept at this temperature for 2.5 hours to allow the glass to fully crystallize, and finally cooled to room temperature to obtain soda-lime nano-ceramic glass; (6) The sodium-lime nano-microcrystalline glass is screen-printed with protective oil, polished, and then cleaned and sprayed. After spraying, it is chemically etched and then chemically polished. Subsequently, nano-silica solution is sprayed on the glass surface to allow a secondary chemical reaction. Finally, it is baked and dried in an oven at 160°C for 30 minutes to obtain high-toughness, anti-glare sodium-lime nano-microcrystalline glass.

2. The method for preparing a high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (1), the components of the glass raw material include, by mole percentage, 70–74% SiO2, 0–3% Al2O3, 6–12% CaO, 0–6% MgO, and 12–16% Na2O.

3. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (2), the cooling rate is 5°C / min.

4. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, wherein: In step (4), the amount of the nucleating agent is 1 mol% of the total molar amount of the glass raw materials; the amount of the crystallizing agent is 10 wt% of the total mass of the glass raw materials.

5. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (5), the grain size of the nano-ceramic glass is 50-100 nm.

6. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (6), the cleaning spray is to use an alkaline cleaning agent or alcohol spray to remove oil stains on the glass surface.

7. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (6), the chemical etching is first performed using an ammonium bifluoride solution to form micron-scale etching points in different directions on the glass surface, and then immersed in pure water three times to wash away the ammonium bifluoride solution on the surface, and finally blown dry with nitrogen.

8. The method for preparing high-toughness, anti-glare soda-lime nano-ceramic glass according to claim 1, characterized in that: In step (6), the chemical polishing is performed by fixing the glass on an acid-resistant bracket and immersing the glass in a hydrofluoric acid polishing tank or spraying the glass on a flat plate.

9. Soda-lime nano-ceramics prepared by the method for preparing high-toughness, anti-glare soda-lime nano-ceramics as described in any one of claims 1 to 8.

10. Application of the soda-lime nano-glass-ceramics as claimed in claim 9 in the field of mobile phone flat glass cover plates.

Images