Preparation method of vehicle-mounted AG glass cover plate

Abstract

The invention discloses a preparation method of a vehicle-mounted AG glass cover plate, and relates to the technical field of AG glass preparation. The preparation method of the vehicle-mounted AG glass cover plate comprises the following specific steps: dissolving H3BO3 in C2H8O2, removing filtrate to obtain mixed B2O3, adding EtOS, stirring and dissolving to form transparent glass gel, gradually dropwise adding TaO (NO3) 3 and (In (NO3)) 3 into the glass gel to obtain water-containing glass gel, and sintering the obtained dried blocky glass gel in a muffle furnace. According to the preparation method, the sodium borosilicate glass containing the Ta-In2O3 nanostructure is prepared through colloid-gel and atmosphere control, the In element in the prepared AG glass base material exists in the form of amorphous In2O3, Ta exists in the form of crystalline nanoparticles, and in a porous and loose structure formed by silica and boron-oxygen tetrahedrons, the effect of high transmittance is finally achieved.

Description

Technical Field

[0001] The invention relates to the technical field of AG glass preparation, and in particular to a method for preparing a vehicle-mounted AG glass cover plate. Background Art

[0002] AG glass is a glass material that has been specially processed. This glass is made by chemically etching or physically coating the surface of ordinary glass to form a tiny concave and convex structure on the surface of the glass, which effectively reduces the reflection and refraction of light and achieves an anti-glare effect. Among them, the car AG glass cover is a specially processed glass with anti-glare and low reflection properties, which is widely used in car displays, such as instrument panels and central control screens.

[0003] The surface treatment process of AG glass is the key difference between it and ordinary glass. The chemical etching method is to corrode the glass surface through a specific chemical solution to form a tiny texture to scatter light and reduce reflection. The physical coating is to change the propagation path of light by coating one or more layers of nano-thin films on the glass surface to achieve the purpose of anti-glare.

[0004] These two processes have their own advantages and disadvantages. The chemical etching process is relatively simple and low-cost, but it may have a certain impact on the strength of the glass. The physical coating process can better retain the original strength of the glass, but the cost is relatively high, and the durability of the coating needs to be further optimized. Therefore, this application aims to introduce metal nanomaterials, and through the unique ion resonance effect of metal nanomaterials themselves, the glass substrate has unique optical properties. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method for preparing a vehicle-mounted AG glass cover plate, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented by the following technical scheme, a method for preparing a vehicle-mounted AG glass cover, the method comprising the following specific steps:

[0007] S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, stir for 30 minutes until the solution is clear, let it stand and cool, remove the filtrate to obtain mixed B2O3, keep it for later use, mix and stir HNO3 with EtOH, add EtOS and stir to dissolve, set the stirring time to 1 hour, obtain mixed SiO2, keep it for later use, dissolve Na in EtOH to obtain mixed Na2O, wherein SiO2 is introduced in the subsequent sintering, organic groups such as -Si-OH and -Si-OR burn and volatilize during decomposition and polycondensation, and silicon-oxygen and boron-oxygen tetrahedrons form a porous and loose structure;

[0008] S2: Add the obtained mixed B2O3 to the mixed SiO2 through a pipette, then add Na2O through a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed, wherein the present application dissolves the metal alkoxide in an organic solvent, mixes evenly, and then performs hydrolysis and condensation chemical reactions to form a stable transparent colloid in the solution. The colloid is aged, and the colloids slowly polymerize to form a three-dimensional network structure, and the network is filled with solvents that have lost fluidity. After standing and cooling, a gel is formed, and the gel after standing is subsequently sintered. The prepared AG glass cover plate has high purity and is subjected to low-temperature treatment when standing in a liquid state. There is an appropriate distance and mobility between molecules, which is suitable for subsequent direct human control. The prepared AG glass cover plate has good crystallization and a low failure rate;

[0009] S3: gradually add TaO(NO3)3 and (In(NO3))3 into the obtained Na2O-B2O3-SiO2 glass colloid and stir for 30 minutes;

[0010] The TaO(NO3)3 and (In(NO3))3 introduced in this application allow the colloid to introduce metal Ta and -In2O3 nanostructures. The UV-visible analysis results of Ta-doped In2O3 thin films in the current prior art show that the average transparency of Ta-doped In2O3 thin films is above 85% in the wavelength range of 400-1000nm, indicating that the Ta-doped material has obvious improvements in optical transmittance and photocatalytic performance.

[0011] S4: the obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120° C. to obtain a dry block glass colloid;

[0012] S5: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for soaking, ultrasonically cleaned with ethanol, and dotted with a laser, and the dot distance is controlled to be ±0.02 mm between two adjacent points. A frosted surface is formed on the surface of the glass substrate, and debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

[0013] A further improvement of the technical solution of the present invention is that the AG glass substrate obtained in S5 has a molar composition of:

[0014] The weight of Na2O is 8 mol%, B2O3 is 30 mol%, SiO2 is 59 mol%, and the weight of TaO(NO3)3 dopants and (In(NO3))3 dopants accounts for 2.4±0.1 mol% of the entire AG glass substrate.

[0015] A further improvement of the technical solution of the present invention is that the AG glass substrate obtained by S5 is dotted by laser, and the distance between two adjacent dots is controlled at ±0.02nm, and the dot depth of the AG glass substrate obtained by S5 is 0.5-0.8um, and the thickness of the AG glass substrate obtained by S5 is 100-120nm.

[0016] A further improvement of the technical solution of the present invention is that the S5 further includes the following specific sintering steps:

[0017] S51: When the AG glass substrate is placed in a muffle furnace for sintering, the temperature in the furnace is stably raised to 150°C. After the oxygen atmosphere is introduced, the temperature is gradually raised to 400°C within 30 minutes to stably remove organic matter and fully decompose TaO(NO3)3 and (In(NO3))3;

[0018] S52: The oxygen atmosphere in the muffle furnace is replaced by nitrogen atmosphere, and after sintering at 400°C for 5 hours, Ta-In is formed in a reducing atmosphere. The hydrogen atmosphere is replaced again and the temperature is raised to 600°C. After keeping the temperature for 8 hours, a densification treatment is performed to obtain an AG glass substrate.

[0019] A further improvement of the technical solution of the present invention is that the oxygen atmosphere in S51 is controlled to have a flow rate of 35 mL / min to 40 mL / min, the nitrogen atmosphere in S52 is controlled to have a flow rate of 40 mL / min to 55 mL / min, and the hydrogen atmosphere is controlled to have a flow rate of 20 mL / min to 25 mL / min.

[0020] A further improvement of the technical solution of the present invention is that the cleaning liquid selected in S5 includes gasoline, toluene, xylene, acetone, and a mixture of alcohol, surfactant and hydrocarbon.

[0021] A further improvement of the technical solution of the present invention is that the pH of HNO3 in S1 is 2;

[0022] After the S3 was stirred for 30 minutes, the Na2O-B2O3-SiO2 glass colloid contained Ag. + andIn 3+ .

[0023] A further improvement of the technical solution of the present invention is that the AG glass substrate obtained in S52 forms a grid structure.

[0024] Beneficial Effects

[0025] Compared with the prior art, the beneficial effect of the present invention is that nanoborosilicate glass containing Ta-In2O3 nanostructure is prepared through colloid-gel combined with atmosphere control, and the In element in the prepared AG glass substrate exists in the form of amorphous In2O3, and Ta exists in the form of crystalline nanoparticles, forming a porous and loose structure with silicon oxygen and boron oxygen tetrahedrons, and finally presents a high transmittance effect, which preliminarily solves the performance limitation caused by insufficient transparency of glass in the actual application of vehicle-mounted AG glass cover, and the preparation is directly sintered, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a flow chart of a method for preparing a vehicle-mounted AG glass cover plate;

[0027] Figure 2 is a graph showing the change in reflection intensity at different angles in the powder diffraction analysis of Example 1;

[0028] Figure 3 is a graph showing the change in reflection intensity at different angles in the powder diffraction analysis of Example 2;

[0029] Figure 4 is a graph showing the change in reflection intensity at different angles in the powder diffraction analysis of Example 3;

[0030] Figure 5 It is a schematic diagram of the specific sintering process in the preparation method of the vehicle-mounted AG glass cover. DETAILED DESCRIPTION

[0031] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0032] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0033] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0034] Embodiment 1, the present invention provides a method for preparing a vehicle-mounted AG glass cover plate, the method comprising the following specific steps:

[0035] S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, and stir for 30 minutes until the solution is clear. After cooling, remove the filtrate to obtain mixed B2O3, which is retained for later use. Mix HNO3 and EtOH and stir. Add EtOS and stir to dissolve. Set the stirring time to 1 hour to obtain mixed SiO2, which is retained for later use. Dissolve Na in EtOH to obtain mixed Na2O.

[0036] The introduction of SiO2 in the subsequent sintering causes organic groups such as -Si-OH and -Si-OR to burn and volatilize during decomposition and polycondensation, and silicon-oxygen and boron-oxygen tetrahedrons form a porous and loose structure.

[0037] S2: Add the obtained mixed B2O3 into the mixed SiO2 through a pipette, then add Na2O through a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed.

[0038] The present application dissolves metal alkoxide in an organic solvent, mixes the mixture evenly, and then performs hydrolysis and condensation chemical reactions to form a stable transparent colloid in the solution. The colloid is aged, and the colloids slowly polymerize to form a three-dimensional network structure, and the network is filled with solvents that have lost fluidity. A gel is formed after standing and cooling, and the gel after standing is subsequently sintered. The prepared AG glass cover has high purity and is subjected to low-temperature treatment when standing in a liquid state. There is an appropriate distance and mobility between molecules, which is suitable for subsequent direct human control. The prepared AG glass cover has good crystallization and a low failure rate.

[0039] S3: Gradually add TaO(NO3)3 and (In(NO3))3 into the obtained Na2O-B2O3-SiO2 glass colloid and stir for 30 minutes.

[0040] The TaO(NO3)3 and (In(NO3))3 introduced in this application allow the colloid to introduce the nanostructure of metallic Ta and -In2O3. The UV-visible analysis results of Ta-doped In2O3 films using current prior art indicate that the average transparency of Ta-doped In2O3 films is above 85% within the wavelength range of 400-1000nm, indicating that the Ta-doped material has significant improvements in optical transmittance and photocatalytic performance.

[0041] S4: The obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120°C to obtain a dry block glass colloid.

[0042] S5: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for soaking, ultrasonically cleaned with ethanol, and dotted with a laser, and the dot distance is controlled to be ±0.02 mm between two adjacent points. A frosted surface is formed on the surface of the glass substrate, and debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

[0043] The molar composition of the AG glass substrate obtained in S5 is as follows: Na2O is 8 mol%, B2O3 is 30 mol%, SiO2 is 59 mol%, and the weight of TaO(NO3)3 dopants and (In(NO3))3 dopants accounts for 2.4±0.1 mol% of the total AG glass substrate.

[0044] The AG glass substrate obtained in S5 is dotted by laser, and the distance between two adjacent dots is controlled at ±0.02nm, and the dot depth of the AG glass substrate obtained in S5 is 0.5-0.8um, and the thickness of the AG glass substrate obtained in S5 is 100-120nm.

[0045] The S5 also includes the following specific sintering steps:

[0046] S51: When the AG glass substrate is placed in a muffle furnace for sintering, the temperature in the furnace is stably increased to 150°C. After the oxygen atmosphere is introduced, the temperature is gradually increased to 400°C within 30 minutes to stably remove organic matter and fully decompose TaO(NO3)3 and (In(NO3))3.

[0047] S52: The oxygen atmosphere in the muffle furnace is replaced by nitrogen atmosphere, and after sintering at 400°C for 5 hours, Ta-In is formed in a reducing atmosphere. The hydrogen atmosphere is replaced again and the temperature is raised to 600°C. After keeping the temperature for 8 hours, a densification treatment is performed to obtain an AG glass substrate.

[0048] The oxygen atmosphere flow rate in S51 is controlled to be 35 mL / min to 40 mL / min, the nitrogen atmosphere flow rate in S52 is controlled to be 40 mL / min to 55 mL / min, and the hydrogen atmosphere flow rate is controlled to be 20 mL / min to 25 mL / min.

[0049] The cleaning liquid in S5 may be selected from gasoline, toluene, xylene, acetone, and a mixture of alcohol, surfactant, and hydrocarbon.

[0050] The pH of HNO3 in S1 is 2. After S3 is stirred for 30 minutes, the Na2O-B2O3-SiO2 glass colloid contains In 3 + .

[0051] Embodiment 2, compared with embodiment 1, provides another method for preparing a vehicle-mounted AG glass cover plate:

[0052] S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, and stir for 30 minutes until the solution is clear. After cooling, remove the filtrate to obtain mixed B2O3, which is retained for later use. Mix HNO3 and EtOH and stir. Add EtOS and stir to dissolve. Set the stirring time to 1 hour to obtain mixed SiO2, which is retained for later use. Dissolve Na in EtOH to obtain mixed Na2O.

[0053] S2: Add the obtained mixed B2O3 into the mixed SiO2 through a pipette, then add Na2O through a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed.

[0054] S3: The obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120°C to obtain a dry block glass colloid.

[0055] S4: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for immersion, ultrasonically cleaned with ethanol, and laser dotted to control the dot distance, with the distance between two adjacent points being ±0.02 mm, a matte surface is formed on the surface of the glass substrate, debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

[0056] In this embodiment, the added TaO(NO3)3 and (In(NO3))3 are excluded in order to observe the improvement of transparency caused by the nanostructure of Ta, In elements and -In2O3.

[0057] Example 2, compared with Example 1, the present application considers that In2O3 is an important transparent conductive oxide, and has high transparency and low light loss in the visible and near-infrared regions, and In2O3 is easily combined with metal ions to form a stable structure, so the metal-In2O3 nanostructure is introduced into the glass substrate. In this embodiment, other metal Ag is selected to provide another method for preparing a vehicle-mounted AG glass cover:

[0058] S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, and stir for 30 minutes until the solution is clear. After cooling, remove the filtrate to obtain mixed B2O3, which is retained for later use. Mix HNO3 and EtOH and stir. Add EtOS and stir to dissolve. Set the stirring time to 1 hour to obtain mixed SiO2, which is retained for later use. Dissolve Na in EtOH to obtain mixed Na2O.

[0059] S2: Add the obtained mixed B2O3 into the mixed SiO2 through a pipette, then add Na2O through a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed.

[0060] S3: Gradually add AgNO3 and (In(NO3))3 into the obtained Na2O-B2O3-SiO2 glass colloid and stir for 30 minutes.

[0061] S4: The obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120°C to obtain a dry block glass colloid.

[0062] S5: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for soaking, ultrasonically cleaned with ethanol, and dotted with a laser, and the dot distance is controlled to be ±0.02 mm between two adjacent points. A frosted surface is formed on the surface of the glass substrate, and debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

[0063] The AG glass substrate obtained in S5 is dotted by laser, and the distance between two adjacent dots is controlled at ±0.02nm, and the dot depth of the AG glass substrate obtained in S5 is 0.5-0.8um, and the thickness of the AG glass substrate obtained in S5 is 100-120nm.

[0064] The S5 also includes the following specific sintering steps:

[0065] S51: When the AG glass substrate is placed in a muffle furnace for sintering, the temperature in the furnace is stably raised to 150°C. After the oxygen atmosphere is introduced, the temperature is gradually raised to 400°C within 30 minutes to stably remove organic matter and fully decompose AgNO3 and (In(NO3))3;

[0066] S52: The oxygen atmosphere in the muffle furnace is replaced by nitrogen atmosphere, and after sintering at 400°C for 5 hours, Ta-In is formed in a reducing atmosphere. The hydrogen atmosphere is replaced again and the temperature is raised to 600°C. After keeping the temperature for 8 hours, a densification treatment is performed to obtain an AG glass substrate.

[0067] The oxygen atmosphere flow rate in S51 is controlled to be 35 mL / min to 40 mL / min, the nitrogen atmosphere flow rate in S52 is controlled to be 40 mL / min to 55 mL / min, and the hydrogen atmosphere flow rate is controlled to be 20 mL / min to 25 mL / min.

[0068] The cleaning liquid in S5 may be selected from gasoline, toluene, xylene, acetone, and a mixture of alcohol, surfactant and hydrocarbon.

[0069] The pH of HNO3 in S1 is 2;

[0070] After the S3 was stirred for 30 minutes, the Na2O-B2O3-SiO2 glass colloid contained In 3+ .

[0071] The AG glass substrate obtained in S52 forms a grid structure.

[0072] Embodiment 3, compared with Embodiment 1, provides another method for preparing a vehicle-mounted AG glass cover plate:

[0073] S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, and stir for 30 minutes until the solution is clear. After cooling, remove the filtrate to obtain mixed B2O3, which is retained for later use. Mix HNO3 and EtOH and stir. Add EtOS and stir to dissolve. Set the stirring time to 1 hour to obtain mixed SiO2, which is retained for later use. Dissolve Na in EtOH to obtain mixed Na2O.

[0074] S2: Add the obtained mixed B2O3 into the mixed SiO2 through a pipette, then add Na2O through a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed.

[0075] S3: Gradually add TaO(NO3)3 and (In(NO3))3 into the obtained Na2O-B2O3-SiO2 glass colloid and stir for 30 minutes.

[0076] S4: The obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120°C to obtain a dry block glass colloid.

[0077] S5: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for soaking, ultrasonically cleaned with ethanol, and dotted with a laser, and the dot distance is controlled to be ±0.02 mm between two adjacent points. A frosted surface is formed on the surface of the glass substrate, and debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

[0078] The molar composition of the AG glass substrate obtained in S5 is as follows:

[0079] The weight of Na2O is 8 mol%, B2O3 is 30 mol%, SiO2 is 59 mol%, and the weight of TaO(NO3)3 dopants and (In(NO3))3 dopants accounts for 2.4±0.1 mol% of the entire AG glass substrate.

[0080] The S5 also includes the following specific sintering steps:

[0081] S51: When the AG glass substrate is placed in a muffle furnace for sintering, the temperature in the furnace is stably raised to 150°C. After the oxygen atmosphere is introduced, the temperature is gradually raised to 400°C within 30 minutes to stably remove organic matter and fully decompose TaO(NO3)3 and (In(NO3))3;

[0082] S52: The oxygen atmosphere in the muffle furnace is replaced by nitrogen atmosphere, and after sintering at 400°C for 5 hours, Ta-In is formed in a reducing atmosphere. The hydrogen atmosphere is replaced again and the temperature is raised to 600°C. After keeping the temperature for 8 hours, a densification treatment is performed to obtain an AG glass substrate.

[0083] The oxygen atmosphere flow rate in S51 is controlled to be 35 mL / min to 40 mL / min, the nitrogen atmosphere flow rate in S52 is controlled to be 40 mL / min to 55 mL / min, and the hydrogen atmosphere flow rate is controlled to be 20 mL / min to 25 mL / min.

[0084] The cleaning liquid in S5 may be selected from gasoline, toluene, xylene, acetone, and a mixture of alcohol, surfactant, and hydrocarbon.

[0085] The pH of HNO3 in S1 is 2;

[0086] After the S3 was stirred for 30 minutes, the Na2O-B2O3-SiO2 glass colloid contained and In 3+ .

[0087] The AG glass substrate obtained in S52 forms a grid structure.

[0088] In summary, the glass substrates obtained in Example 1, Example 2 and Example 3 all use micro-light sources of 632.8nm helium-neon laser, 1330nm and 1550nm semiconductor lasers, and the calculation formula of their refractive index is as follows:

[0089]

[0090] Furthermore, the Vickers hardness was calculated by indenting the surfaces of the glass substrates obtained in Example 1, Example 2 and Example 3 for 5 seconds using an MH-3 Vickers microindentation instrument. The test was repeated 10 times on different surfaces of the glass, and the average value was taken as the hardness of the glass.

[0091] Furthermore, an X-ray powder diffractometer was used to test and analyze the crystallization of the glass substrate samples obtained in Example 1, Example 2 and Example 3; an X-ray photoelectron spectrometer was used to test and analyze the metal valence introduced into the glass substrates obtained in Example 1, Example 2 and Example 3; wherein the X-ray powder diffractometer results are shown in Figure X;

[0092] The hardness, curvature, visible light transmittance, and refractive index of the films related to Embodiment 1, Embodiment 2, and Embodiment 3 are shown in the attached table;

[0093]

[0094]

[0095] Therefore, based on the above, it can be seen that in the present application, the preparation method of the vehicle-mounted AG glass cover disclosed in Example 1 is the best. The present application further explores the mechanism analysis of the AG glass substrate obtained in Example 1 to achieve the optimal effect in terms of visible light transmittance, refractive index and fluorescence enhancement. By comparing Example 1 and Example 2, it can be seen that the size of the Ta nanoparticles in Example 1 is smaller than the size of the Ag nanoparticles in Example 2. The observation results use a transmission electron microscope to analyze the crystal phase and size distribution of the glass substrates obtained in Example 1, Example 2 and Example 3, which means that the average distance between Ta-Ta nanoparticles is smaller, resulting in a local electric field effect, which helps to reduce the light reflectivity of its own surface and enhance the perspective performance.

[0096] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0097] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a vehicle-mounted AG glass cover plate, characterized in that: The method comprises the following specific steps: S1: Dissolve H3BO3 in C2H8O2, heat to 55°C, stir for 30 min until the solution is clear, cool and remove the filtrate to obtain mixed B2O3, save for later use, mix HNO3 and EtOH, stir, add EtOS and stir to dissolve, set the stirring time to 1 h, obtain mixed SiO2, save for later use, dissolve Na in EtOH to obtain mixed Na2O; S2: Add the obtained mixed B2O3 to the mixed SiO2 by a pipette, then add Na2O by a pipette, add plasma water, and stir for 1 hour until a transparent Na2O-B2O3-SiO2 glass colloid is formed; S3: gradually add TaO(NO3)3 and (In(NO3))3 into the obtained Na2O-B2O3-SiO2 glass colloid and stir for 30 minutes; S4: the obtained mixed Na2O-B2O3-SiO2 glass colloid is allowed to stand for 2 days to obtain a glass colloid containing water, and the glass colloid is placed in a vacuum chamber at 120° C. to obtain a dry block glass colloid; S5: The obtained dry block glass colloid is placed in a muffle furnace for sintering to obtain the required AG glass substrate, the AG glass substrate is placed in a cleaning solution for soaking, ultrasonically cleaned with ethanol, and dotted with a laser, and the dot distance is controlled to be ±0.02 mm between two adjacent points. A frosted surface is formed on the surface of the glass substrate, and debris on the surface of the glass substrate is cleaned, ultrasonically cleaned again with ethanol, and retained.

2. The method for preparing the vehicle-mounted AG glass cover according to claim 1, characterized in that: The molar composition of the AG glass substrate obtained in S5 is as follows: The weight of Na2O is 8 mol%, B2O3 is 30 mol%, SiO2 is 59 mol%, and the weight of TaO(NO3)3 dopants and (In(NO3))3 dopants accounts for 2.4±0.1 mol% of the entire AG glass substrate.

3. The method for preparing the vehicle-mounted AG glass cover plate according to claim 2, characterized in that: The AG glass substrate obtained in S5 is dotted by laser, and the distance between two adjacent dots is controlled at ±0.02nm, and the dot depth of the AG glass substrate obtained in S5 is 0.5-0.8um, and the thickness of the AG glass substrate obtained in S5 is 100-120nm.

4. The method for preparing the vehicle-mounted AG glass cover plate according to claim 3, characterized in that: The S5 also includes the following specific sintering steps: S51: When the AG glass substrate is placed in a muffle furnace for sintering, the temperature in the furnace is steadily raised to 150°C, and after oxygen atmosphere is introduced, the temperature is gradually raised to 400°C within 30 minutes; S52: The oxygen atmosphere in the muffle furnace is replaced by nitrogen atmosphere, and after sintering at 400°C for 5 hours, hydrogen atmosphere is replaced again and the temperature is raised to 600°C. After keeping the temperature for 8 hours, a densification treatment is performed to obtain an AG glass substrate.

5. The method for preparing the vehicle-mounted AG glass cover plate according to claim 4, characterized in that: The oxygen atmosphere flow rate in S51 is controlled to be 35 mL / min to 40 mL / min, the nitrogen atmosphere flow rate in S52 is controlled to be 40 mL / min to 55 mL / min, and the hydrogen atmosphere flow rate is controlled to be 20 mL / min to 25 mL / min.

6. The method for preparing the vehicle-mounted AG glass cover plate according to claim 5, characterized in that: The cleaning liquid in S5 may be selected from gasoline, toluene, xylene, acetone, and a mixture of alcohol, surfactant, and hydrocarbon.

7. The method for preparing the vehicle-mounted AG glass cover plate according to claim 6, characterized in that: The pH of HNO3 in S1 is 2; After the S3 was stirred for 30 minutes, the Na2O-B2O3-SiO2 glass colloid contained In 3+ .

8. The method for preparing the vehicle-mounted AG glass cover plate according to claim 7, characterized in that: The AG glass substrate obtained in S52 forms a grid structure.

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