A honeycomb AG effect glass, its preparation method, and its application

Abstract

This invention discloses a honeycomb AG effect glass. The surface of the honeycomb AG effect glass has crystals, the crystal structure of which includes a square pyramid shape. The crystals include large, medium, and small crystals, which are interconnected and uniformly distributed to form a uniformly distributed textured surface. This invention also discloses a method for preparing the above-mentioned honeycomb AG effect glass. Furthermore, this invention discloses the application of the above-mentioned honeycomb AG effect glass in electronic devices. The honeycomb AG effect glass of this invention has low haze, a strong frosted feel, and good scratch resistance, which can meet new user needs; it can be mass-produced with a high AG yield rate.

Description

Technical Field

[0001] This invention relates to the field of AG glass technology, and in particular to a honeycomb AG effect glass, its preparation method, and its application. Background Technology

[0002] Due to consumers' excessive reliance on electronic products, the demand for anti-reflective and anti-glare (AG effect) glass for electronic products has increased significantly to avoid blurred vision and glare caused by prolonged use. AG glass, also known as anti-glare glass, has a lower reflectance compared to ordinary glass, while minimally affecting light transmission. AG glass can improve the viewing angle and brightness of displayed images, making images clearer, colors more vibrant, and colors more saturated, thus significantly improving display effects. It can be widely used in the manufacture of LCD screens, mobile phone cover lenses, etc. With the upgrading of consumer demands, the appearance requirements of glass products are becoming more diversified, especially in communication terminals, where different appearance structures particularly attract different consumers. Therefore, there is a need for a new type of AG effect glass to provide consumers with more choices. Furthermore, existing AG glass is not scratch-resistant and easily scratched, affecting the appearance of the glass and the user experience. Summary of the Invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a honeycomb AG effect glass, its preparation method and application. The honeycomb AG effect glass of the present invention has low haze, strong frosted feel and good scratch resistance, which can meet the new needs of users; it can be mass-produced with a high AG yield rate.

[0004] This invention proposes a honeycomb AG effect glass. The surface of the honeycomb AG effect glass has crystals, and the crystal structure includes a square pyramid shape. The crystals include large crystals, medium crystals and small crystals. The large, medium and small crystals are interconnected and evenly distributed to form a uniformly distributed concave and convex texture.

[0005] Preferably, the large crystals have a particle size of 0.10-0.15 mm, the small crystals have a particle size of 0.03-0.06 mm, and the medium crystals have a particle size of <0.10 mm and >0.06 mm.

[0006] Preferably, the volume ratio of large, medium and small crystals is 1:5-10:10-25.

[0007] Preferably, the crystals are fluorosilicates.

[0008] Preferably, the honeycomb AG effect glass has a haze of 50-60%, a roughness of 2.5-3.5μm, a transmittance of 48-60%, and a Mohs hardness of 7-9.

[0009] The present invention also proposes a method for preparing the above-mentioned honeycomb AG effect glass, comprising the following steps: etching the glass with an etching solution to obtain the honeycomb AG effect glass, wherein the raw materials of the etching solution include, by weight, 2-4.5 parts of ammonium bifluoride, 0.2-1.5 parts of ammonium hexafluorosilicate, 0.5-1.6 parts of barium sulfate, 1.5-3.3 parts of hydrochloric acid, and 0.3-1 parts of water.

[0010] In the aforementioned etching solution, ammonium bifluoride is readily soluble in cold water and can react with silicon dioxide to generate silicon fluoride, thereby etching textures onto the product surface. Ammonium hexafluorosilicate can increase crystal size and luster. The amount of barium sulfate added controls the size and morphology of the crystals. Hydrochloric acid controls the sand-effect forming process. By screening suitable components and their proportions, the inventors achieved the formation of large, medium, and small crystals of different particle sizes on the glass surface during etching. These large, medium, and small crystals are interconnected and evenly distributed. This arrangement of crystals gives the glass a honeycomb-like appearance on a macroscopic scale. The resulting AG effect glass has low haze and high transmittance, which is beneficial for improving the film effect. It also has a strong frosted feel and low luster. In addition, this honeycomb AG effect gives the glass good scratch resistance. This special honeycomb AG effect can meet new user needs and can be mass-produced with a high AG yield rate.

[0011] Preferably, the hydrochloric acid is an aqueous solution with a mass fraction of 30-38 wt%.

[0012] Preferably, the etched glass is one of the following: King Panda Generation 1 glass, King Panda Generation 2 glass, Corning GG5 glass, and Corning GG6 glass.

[0013] Preferably, the etching temperature is 15-20℃.

[0014] Preferably, the etching method is as follows: first brush in the etching solution for 15-30 seconds, then soak for 60-75 seconds.

[0015] The brushing methods described above can include up-and-down brushing or rotating brushing, etc.

[0016] The present invention can further improve the yield of honeycomb AG effect glass by selecting a suitable etching process.

[0017] Preferably, the method for preparing the etching solution includes the following steps: mixing the substances in the order of ammonium bifluoride, ammonium hexafluorosilicate, barium sulfate, water, and hydrochloric acid, and then aging them in a sealed container at 20-30°C to obtain the etching solution.

[0018] Preferably, the sealing and curing time is 24-48 hours.

[0019] Preferably, during the maturation process, the mixture is stirred once every 2-5 hours, for 3-5 minutes each time.

[0020] The present invention also proposes the application of the above-mentioned honeycomb AG effect glass in electronic devices.

[0021] Preferably, it is used in the housing of electronic devices.

[0022] Beneficial effects:

[0023] This invention, through the selection and proportioning of suitable components, enables the formation of large, medium, and small crystals of varying particle sizes on the glass surface during etching. These large, medium, and small crystals are interconnected and uniformly distributed. This arrangement of crystals gives the glass a honeycomb-like macroscopic appearance, resulting in AG-effect glass with low haze and high transmittance, which is beneficial for improving the film's effect. Furthermore, it provides a strong frosted feel and low shimmer. In addition, this honeycomb AG effect gives the glass excellent scratch resistance. This unique honeycomb AG effect can meet new user needs. Moreover, the etching solution is simple to prepare, saving costs; the operation is simple, facilitating mass production; and the AG yield is high. Attached Figure Description

[0024] Figure 1 This is a 100x electron microscope image of the honeycomb AG effect glass prepared in Example 1.

[0025] Figure 2 The image shows a macroscopic photograph of the honeycomb AG effect glass prepared in Example 1, where a is before film application and b is after film application.

[0026] Figure 3 Typical photographs of AG effect glass, showing comparisons 1-10. Detailed Implementation

[0027] The technical solution of the present invention will be described in detail below through specific embodiments. However, it should be clearly stated that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0028] Example 1

[0029] A method for preparing honeycomb AG effect glass includes the following steps:

[0030] Take the King Panda II glass, clean it with an ultrasonic cleaner, transfer it to a special fixture, and immerse it in a mixed acid solution (the raw materials of the mixed acid include, by weight: 100 parts water, 3 parts hydrofluoric acid, 8 parts nitric acid, and 7 parts sulfuric acid) for 30 seconds. Then rinse the glass with pure water. Next, quickly immerse the glass in an etching solution (adjust the temperature of the etching solution to 15-20℃), brush it up and down for 15 seconds, and then immerse it for 75 seconds. After etching, remove the glass, rinse it with water, and dry it with compressed air to obtain honeycomb AG effect glass. The raw materials of the etching solution are shown in Table 1.

[0031] The honeycomb AG effect glass prepared above was tested, and the results are as follows: Figure 1-2 As shown.

[0032] Figure 1 This is a 100x electron microscope image of the honeycomb AG effect glass prepared in Example 1.

[0033] Depend on Figure 1 It can be seen that the surface of the honeycomb AG effect glass has crystals, and the crystal structure includes a square pyramid shape. The crystals include large crystals, medium crystals, and small crystals. The large, medium, and small crystals are interconnected and evenly distributed to form a uniformly distributed uneven texture. The particle size of the large crystals is 0.10-0.15mm, the particle size of the small crystals is 0.03-0.06mm, the particle size of the medium crystals is <0.10mm, and the particle size of the medium crystals is >0.06mm. The volume ratio of large, medium, and small crystals is 1:7.5:17.

[0034] Figure 2 The image shows a macroscopic photograph of the honeycomb AG effect glass prepared in Example 1, where a is before film application and b is after film application.

[0035] Depend on Figure 2 It can be seen that the etched glass has a uniformly distributed honeycomb pattern, low haze, and good light transmittance. The test results show that the haze of the honeycomb AG effect glass is 55%, the roughness is 3.3μm, and the transmittance is 50.2%. Furthermore, the sanding effect is uniform and good after the film is applied.

[0036] Example 2

[0037] A method for preparing honeycomb AG effect glass includes the following steps:

[0038] Take Corning GG5 glass, clean it with an ultrasonic cleaner, transfer it to a special fixture, and immerse it in a mixed acid solution (the raw materials of the mixed acid, by weight, include: 100 parts water, 4 parts hydrofluoric acid, 7 parts nitric acid, and 8 parts sulfuric acid) for 30 seconds. Then rinse the glass with pure water. Next, quickly immerse the glass in an etching solution (adjust the temperature of the etching solution to 15-20℃), first rotate and brush it for 30 seconds, then immerse it for 60 seconds. After etching, remove the glass, rinse it with water, and blow it dry with compressed air to obtain honeycomb AG effect glass. The raw materials of the etching solution are shown in Table 1.

[0039] The surface of the honeycomb AG effect glass obtained above has crystals, and the crystal structure includes a square pyramid shape. The crystals include large crystals, medium crystals and small crystals. The large, medium and small crystals are interconnected and evenly distributed to form a uniformly distributed uneven texture. The particle size of the large crystals is 0.11-0.14 mm, the particle size of the small crystals is 0.03-0.05 mm, the particle size of the medium crystals is <0.10 mm, and the particle size of the medium crystals is >0.06 mm. The volume ratio of large, medium and small crystals is 1:5:10.

[0040] Example 3

[0041] A method for preparing honeycomb AG effect glass includes the following steps:

[0042] Take the King Panda II glass, clean it with an ultrasonic cleaner, transfer it to a special fixture, and immerse it in a mixed acid solution (the raw materials of the mixed acid include, by weight: 100 parts water, 2 parts hydrofluoric acid, 10 parts nitric acid, and 6 parts sulfuric acid) for 30 seconds. Then rinse the glass with pure water. Next, quickly immerse the glass in an etching solution (adjust the temperature of the etching solution to 15-20℃), brush it up and down for 20 seconds, and then immerse it for 70 seconds. After etching, remove the glass, rinse it with water, and dry it with compressed air to obtain honeycomb AG effect glass. The raw materials of the etching solution are shown in Table 1.

[0043] The surface of the honeycomb AG effect glass obtained above has crystals, and the crystal structure includes a square pyramid shape. The crystals include large crystals, medium crystals, and small crystals. The large, medium, and small crystals are interconnected and evenly distributed to form a uniformly distributed uneven texture. The particle size of the large crystals is 0.12-0.15 mm, the particle size of the small crystals is 0.03-0.05 mm, the particle size of the medium crystals is <0.10 mm, and the particle size of the medium crystals is >0.06 mm. The volume ratio of large, medium, and small crystals is 1:10:25.

[0044] The etching solution formulations for Comparative Examples 1-10 are shown in Table 1. The preparation method of the AG effect glass is the same as that in Example 1.

[0045] Table 1 Formulations of each group of etching solutions

[0046]

[0047] The preparation method of the etching solution in Table 1 above is the same, including the following steps: according to the order of raw materials from left to right in Table 1, mix each substance in sequence, seal and mature at 25°C for 36 hours. During the maturation process, stir once every 3 hours for 4 minutes each time to obtain the etching solution.

[0048] The AG effect glasses obtained in Examples 1-3 and Comparative Examples 1-10 were tested, and the results are shown in Table 2.

[0049] The haze was measured using a WGT-S transmittance / haze meter.

[0050] Transmittance was measured using a VMS-transmittance meter.

[0051] The method for detecting flash is to compare the brightness of the flash point under light.

[0052] The method for testing hardness is as follows: Use a Mohs hardness tester to scratch the sample, starting from a low hardness level, while maintaining uniform pressure. The area marked with the imprint represents the hardness range of the sample being tested.

[0053] The method for detecting whether there are scratches is to use a #7 Mohs hardness pen to scratch the surface of the AG effect glass and check whether there are any marks.

[0054] Table 2 Detection Results

[0055]

[0056] Typical photographs of AG effect glass, comparison scales 1-10, are shown below. Figure 3 As shown.

[0057] Depend on Figure 3 It can be seen that after glass etching, the sand effect is not uniform and the sand effect is not well formed.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A honeycomb AG effect glass, characterized in that, The surface of honeycomb AG effect glass has crystals, and the crystal structure includes a square pyramid shape. The crystals include large crystals, medium crystals and small crystals. The large, medium and small crystals are interconnected and evenly distributed to form a uniformly distributed textured surface. The large crystals have a particle size of 0.10-0.15 mm, the small crystals have a particle size of 0.03-0.06 mm, and the medium crystals have a particle size of <0.10 mm and >0.06 mm. The volume ratio of large, medium, and small crystals is 1:5-10:10-25; The haze of the honeycomb AG effect glass is 50-60%, the roughness is 2.5-3.5μm, the transmittance is 48-60%, and the Mohs hardness is 7-9. The honeycomb AG effect glass is scratch-resistant honeycomb AG effect glass; The method for preparing the honeycomb AG effect glass includes the following steps: etching the glass with an etching solution to obtain the honeycomb AG effect glass, wherein the raw materials of the etching solution include, by weight, 2-4.5 parts of ammonium bifluoride, 0.2-1.5 parts of ammonium hexafluorosilicate, 0.5-1.6 parts of barium sulfate, 1.5-3.3 parts of hydrochloric acid, and 0.3-1 parts of water.

2. The honeycomb AG effect glass according to claim 1, characterized in that, The crystalline form is a fluorosilicate.

3. A method for preparing honeycomb AG effect glass as described in claim 1 or 2, characterized in that, The process includes the following steps: etching glass with an etching solution to obtain honeycomb AG effect glass, wherein the raw materials of the etching solution include, by weight, 2-4.5 parts ammonium bifluoride, 0.2-1.5 parts ammonium hexafluorosilicate, 0.5-1.6 parts barium sulfate, 1.5-3.3 parts hydrochloric acid, and 0.3-1 parts water.

4. The method for preparing honeycomb AG effect glass according to claim 3, characterized in that, The hydrochloric acid is an aqueous solution with a mass fraction of 30-38 wt%.

5. The method for preparing honeycomb AG effect glass according to claim 3, characterized in that, The etched glass is one of the following: King Panda Generation 1 glass, King Panda Generation 2 glass, Corning GG5 glass, or Corning GG6 glass.

6. The method for preparing honeycomb AG effect glass according to claim 3, characterized in that, The etching temperature is 15-20℃.

7. The method for preparing honeycomb AG effect glass according to claim 3, characterized in that, The etching method is as follows: first brush in the etching solution for 15-30 seconds, then soak for 60-75 seconds.

8. The method for preparing honeycomb AG effect glass according to claim 3, characterized in that, The preparation method of the etching solution includes the following steps: in the order of ammonium bifluoride, ammonium hexafluorosilicate, barium sulfate, water, and hydrochloric acid, the substances are mixed in a homogeneous manner and then sealed and aged at 20-30℃ to obtain the etching solution.

9. The method for preparing honeycomb AG effect glass according to claim 8, characterized in that, The sealed curing time is 24-48 hours.

10. The method for preparing the honeycomb AG effect glass according to claim 8, characterized in that, During the maturation process, stir once every 2-5 hours, and stir for 3-5 minutes each time.

11. The application of the honeycomb AG effect glass as described in claim 1 or 2 in an electronic device.

12. The application according to claim 11, characterized in that, Applications in electronic device housings.

Images