A super wear-resistant hydrophobic AG glass and its preparation method

By preparing Al2O3 grid on AG glass substrate and combining it with hydrophobic coating, the problems of insufficient wear resistance and adhesion of the existing AG glass hydrophobic layer are solved, and the comprehensive performance of high light transmittance, anti-glare, anti-fouling and self-cleaning is achieved.

CN120309193BActive Publication Date: 2025-09-09LUOYANG INST OF SCI & TECH
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Patent Information

Application Number
CN202510823659.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-09-09
Estimated Expiration
2045-06-19

AI Technical Summary

Technical Problem

After existing AG glass is combined with a hydrophobic coating, there are problems with the hydrophobic layer's wear resistance and insufficient adhesion, making it difficult to meet the requirements of high-end electronic devices.

Method used

A mesh-like silicon-acrylic cracking template was prepared on a glass substrate, and an Al2O3 thin film was deposited using magnetron sputtering to form a cracked Al2O3 grid. The glass sample was then annealed at high temperature to improve the hardness and bonding strength of the Al2O3 grid. Finally, a hydrophobic coating was applied to the Al2O3 grid to form an ultra-wear-resistant, hydrophobic layer.

Benefits of technology

AG glass achieves anti-glare effect while significantly improving the wear resistance and adhesion of the hydrophobic layer. It has high light transmittance, anti-fouling and self-cleaning functions, and still maintains good hydrophobic properties after friction.

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Abstract

The present invention relates to the technical field of surface treatment of glass, and specifically to a super-wear-resistant hydrophobic AG glass and a preparation method thereof, wherein a silicone-acrylic emulsion layer is prepared on a cleaned glass substrate, and after drying, the silicone-acrylic emulsion layer is cracked to obtain a mesh silicone-acrylic cracking template, and an Al2O3 thin film is plated on the mesh silicone-acrylic cracking template. The obtained sample is ultrasonically cleaned in acetone, and the silicone-acrylic cracking template is removed to obtain an Al2O3 grid protruding from the surface of the glass substrate. The glass sample is annealed, then immersed in a hydrophobic coating, and then taken out and baked to obtain super-wear-resistant hydrophobic AG glass. The preparation method of the present invention is simple and efficient. By plating the Al2O3 grid on the glass substrate, the hydrophobic material is locked, the wear resistance of the glass hydrophobic layer is improved, and the super-wear-resistant hydrophobic AG glass obtained has both anti-glare effect and high light transmittance, and has anti-fouling and self-cleaning functions. The hydrophobic layer is filled in the Al2O3 grid, is not easily worn, and has excellent wear resistance.
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Description

Technical Field

[0001] The present invention belongs to the technical field of glass surface treatment, and in particular relates to a super wear-resistant and hydrophobic AG glass and a preparation method thereof. Background Art

[0002] AG glass (Anti-Glare Glass) is a functional glass with a special surface treatment to reduce light reflection and glare. Compared to ordinary glass, AG glass has less specular reflection. In brightly lit environments, it reduces the amount of specular light entering the eye, thereby preventing glare, improving visibility, and reducing visual fatigue.

[0003] Currently, AG glass is primarily treated through spraying and chemical etching. Spraying is a widely used method for preparing AG glass in industrial production. It typically involves spraying a layer of anti-glare nano-coating onto the glass surface, creating a diffuse reflective layer with a certain degree of roughness. This method's key advantages lie in its simplicity, low cost, and high production efficiency, making it suitable for large-scale mass production. It is particularly well-suited for product lines in the consumer electronics sector, where cost control and production capacity requirements are high. However, since the coating is typically made of a hybrid organic or inorganic material, its adhesion and hardness are relatively low, resulting in limited wear resistance. Chemical etching involves chemically etching the glass surface to create a rough structure directly on the glass itself. This process requires high process control, especially controlling the etching depth. Chemical etching not only negatively impacts optical properties but also significantly weakens the mechanical strength of the glass itself, reducing its impact and bending resistance, thus limiting its application in certain applications requiring high strength.

[0004] With the continuous upgrading of display technology and user needs, a single anti-glare function can no longer meet the requirements of high-end electronic devices. In order to further improve the practicality and user experience of AG glass, researchers and the industry have combined AG glass with a hydrophobic coating to develop a composite glass with both anti-glare and anti-fouling and self-cleaning functions. The hydrophobic coating can form a low surface energy structure on the glass surface, significantly reducing the adhesion of water droplets and stains on the surface, giving the glass a "lotus effect" and good waterproof, oil-proof and easy-to-clean properties, which is especially important outdoors or in highly polluted environments. However, the common hydrophobic coatings on the market currently mostly use silicone or fluorine materials. Although these materials have excellent hydrophobic properties, they have low hardness. Especially in scenarios of frequent contact or friction, they are prone to wear and tear, leading to functional degradation.

[0005] Combining hydrophobic coatings with AG glass presents numerous challenges. The synergistic effect of the two functional coatings requires careful consideration and optimization of overall structural performance indicators, including durability, transparency, and optical consistency. Improving the abrasion resistance and adhesion of the hydrophobic coating while maintaining an anti-glare effect is a key area of ​​research in the composite functionalization of AG glass. Summary of the Invention

[0006] The present invention provides a super-wear-resistant and hydrophobic AG glass and a preparation method thereof, the purpose of which is to improve the wear resistance and adhesion of the hydrophobic layer of the glass while ensuring the anti-glare effect and anti-fouling and self-cleaning effect of the glass.

[0007] The present invention is specifically achieved through the following technical solutions. According to the present invention, a method for preparing super-wear-resistant and hydrophobic AG glass comprises the following steps:

[0008] (1) After cleaning the glass substrate, a layer of silicone acrylic emulsion is prepared on the glass surface by roller coating. After drying at room temperature, the silicone acrylic emulsion layer cracks to form multiple cracks, thereby obtaining a mesh silicone acrylic cracking template;

[0009] (2) Selecting an Al2O3 target material with a purity of 99.99%, using magnetron sputtering coating technology to prepare an Al2O3 film on the surface of the meshed silicon-propylene cracking template obtained in step (1), the deposition temperature is room temperature, the deposition gas is an argon-oxygen mixed gas, the sputtering pressure is 0.8~1.2 Pa, and the sputtering power is 100~200 W;

[0010] (3) After step (2) is completed, the obtained glass sample is placed in acetone for ultrasonic cleaning. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid. The grid structure of the Al2O3 grid is complementary to the grid structure of the silicon-acrylic cracking template. Subsequently, the glass sample with the Al2O3 grid is annealed at 400°C to 500°C to improve the hardness of the Al2O3 grid and the bonding strength between the Al2O3 grid and the glass substrate;

[0011] (4) The glass sample annealed in step (3) is immersed in a hydrophobic coating, taken out and baked to obtain an ultra-wear-resistant hydrophobic AG glass.

[0012] In the aforementioned method for preparing super-wear-resistant and hydrophobic AG glass, in step (1), a silicone-acrylic emulsion is poured onto a glass substrate and rolled from one end of the glass to the other end using a Meyer rod to prepare a silicone-acrylic emulsion layer with a thickness of 10 to 20 μm on the glass surface. After drying at room temperature, the crack width of the resulting mesh silicone-acrylic cracking template is 2 to 3 μm, and the crack spacing is 15 to 25 μm.

[0013] In the aforementioned method for preparing super-wear-resistant and hydrophobic AG glass, in step (2), the flow ratio of argon to oxygen in the argon-oxygen mixed gas is 30:1; after coating, the thickness of the Al2O3 film is 300~1000 nm, and the thickness of the Al2O3 film is controlled by the deposition time.

[0014] In the aforementioned method for preparing super-wear-resistant and hydrophobic AG glass, the ultrasonic cleaning time of the sample in acetone in step (3) is 10-15 min, the annealing time is 10-30 min, the mesh width of the Al2O3 grid is 2-3 μm, and the mesh spacing is 15-25 μm.

[0015] In the aforementioned method for preparing super-wear-resistant hydrophobic AG glass, the hydrophobic coating in step (4) is a fluorosilane polymer hydrophobic coating purchased from Naroko New Materials Technology Co., Ltd., model NC319. The immersion is performed at room temperature for 5 to 20 minutes. The hydrophobic coating is filled between the mesh lines of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer. After being removed, the coating is baked at 80°C for 30 to 60 minutes to obtain super-wear-resistant hydrophobic AG glass.

[0016] The present invention also provides an ultra-wear-resistant and hydrophobic AG glass obtained according to the above preparation method, wherein a cracked Al2O3 grid is plated on the glass substrate, the mesh width of the Al2O3 grid is 2 to 3 μm, the mesh spacing is 15 to 25 μm, and the spaces between the mesh lines of the Al2O3 grid and the entire Al2O3 grid are filled with a hydrophobic coating, which is a fluorosilane polymer.

[0017] Furthermore, the ultra-wear-resistant and hydrophobic AG glass has a visible light transmittance of ≥91%, a glossiness of 80-100 at 60°, a haze of 8-12%, a hydrophobic angle of >150°, and a hydrophobic angle of >135° after rubbing with steel wool 10,000 times.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solution, the present invention can achieve considerable technological advancement and practicality, and has a wide range of utilization value. It has at least the following advantages:

[0019] The present invention first utilizes roller coating method to prepare one layer of silicone acrylic emulsion layer on glass substrate surface, after drying, silicone acrylic emulsion layer cracks to form multiple irregular cracks, obtains the meshed silicone acrylic cracking template with crackle, then adopts magnetron sputtering coating technology to plate Al2O3 film on silicone acrylic cracking template surface, Al2O3 is coated on meshed silicone acrylic cracking template and is deposited in the crack of silicone acrylic cracking template.Subsequently through acetone ultrasonic cleaning, silicone acrylic cracking template is removed, and the Al2O3 deposited in the crack of silicone acrylic cracking template is left and protrudes on glass substrate surface, forming crackle-shaped Al2O3 grid.High temperature annealing is then carried out to glass sample, improves Al2O3 the hardness of grid and Al2O3 the bonding force of grid and glass substrate.Glassware is immersed in hydrophobic coating, and hydrophobic coating is filled in Al2O3 between the mesh wire of grid and whole Al2O3 on grid, form hydrophobic layer. The Al2O3 grid coated on the glass substrate effectively protects and locks the hydrophobic layer, making it less susceptible to wear during friction, thereby increasing its wear resistance. The Al2O3 grid deposited on the glass substrate scatters incident light, giving the glass an anti-glare effect.

[0020] The preparation method of the present invention is simple and efficient. By plating a cracked Al2O3 grid on a glass substrate to lock the hydrophobic material, the wear resistance of the glass hydrophobic layer is improved. The obtained ultra-wear-resistant hydrophobic AG glass has both anti-glare effect and high light transmittance, and has anti-fouling and self-cleaning functions. The hydrophobic layer is locked by the Al2O3 grid and is not easily worn, thus having excellent wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the cross-sectional structure of the super-wear-resistant and hydrophobic AG glass prepared in Example 1.

[0022] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the super-wear-resistant and hydrophobic AG glass after friction test.

[0023] Figure 3 This is a hydrophobic angle test diagram of the super wear-resistant and hydrophobic AG glass prepared in Example 1 before the friction test.

[0024] Figure 4 This is a hydrophobic angle test diagram of the super wear-resistant and hydrophobic AG glass prepared in Example 1 after the friction test.

[0025] 1-Glass substrate, 2-Wires of Al2O3 grid, 3-Hydrophobic layer. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] The present invention is described in detail below with specific examples. If the specific conditions are not specified in the following examples, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. The raw materials and reagents used are not specified by the manufacturer, and are all conventional products that can be purchased commercially. The fluorosilane polymer hydrophobic coating in the embodiment is purchased from Naroko New Material Technology Co., Ltd., model NC319; the silicone acrylic emulsion is purchased from Badfu Group Co., Ltd.; the cleaning of the glass substrate in the embodiment can be carried out with an alcohol cleaning with a mass fraction of 98%. The above description is not considered to be a limitation of the present invention.

[0028] Example 1

[0029] (1) After cleaning the glass substrate 1, pour the silicone-acrylic emulsion on the glass substrate and roll it from one end of the glass to the other end using a Meyer rod to prepare a silicone-acrylic emulsion layer with a thickness of 15 μm on the glass surface. After drying at room temperature, the silicone-acrylic emulsion layer cracks to form multiple cracks with a crack width of 2.5 μm and a crack spacing of 20 μm, thus obtaining a mesh silicone-acrylic cracking template;

[0030] (2) An Al2O3 target with a purity of 99.99% was selected, and an Al2O3 film was prepared on the surface of the meshed silicon-propylene cracked template obtained in step (1) using magnetron sputtering coating technology. The deposition temperature was room temperature, the deposition gas was an argon-oxygen mixed gas, the flow ratio of argon to oxygen was 30:1, the sputtering pressure was 1.0 Pa, and the sputtering power was 150 W. After coating, the thickness of the Al2O3 film was 600 nm.

[0031] (3) After step (2) is completed, the obtained glass sample is placed in acetone and ultrasonically cleaned for 10 minutes. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid. The grid structure of the Al2O3 grid is complementary to the grid structure of the silicon-acrylic cracking template. The width of the mesh line 2 of the Al2O3 grid is 2.5 μm, and the mesh line spacing is 20 μm. Subsequently, the glass sample with the Al2O3 grid is annealed at 500°C for 20 minutes to improve the hardness of the Al2O3 grid and the bonding strength between the Al2O3 grid and the glass substrate.

[0032] (4) The glass sample after annealing treatment in step (3) is placed in a hydrophobic coating of a fluorosilane polymer and soaked at room temperature for 8 minutes. The hydrophobic coating is filled between the mesh wires of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer 3. After being taken out, it is baked at 80°C for 50 minutes to obtain an ultra-wear-resistant hydrophobic AG glass.

[0033] The performance indicators of the ultra-wear-resistant, hydrophobic AG glass were tested using a UV-visible spectrophotometer to measure transmittance, a gloss meter to measure gloss, a haze meter to measure haze, and a water drop angle meter to measure hydrophobicity (the same below). The ultra-wear-resistant, hydrophobic AG glass prepared in this example had a visible light transmittance of 91.5%, a glossiness of 91 at 60°, a haze of 9.8%, and a hydrophobicity angle of 158°.

[0034] The wear resistance of the super-wear-resistant and hydrophobic AG glass prepared in this embodiment was tested using a friction tester. The friction material was steel wool. After 10,000 times of friction with steel wool (500 g pressure), the hydrophobic angle of the glass was 141°.

[0035] Figure 1 This is a schematic diagram of the cross-sectional structure of the super-wear-resistant and hydrophobic AG glass prepared in Example 1, which includes a glass substrate 1, an Al2O3 grid and a hydrophobic layer 3. The Al2O3 grid is bonded to the glass substrate, and the hydrophobic layer 3 is located between the mesh lines 2 of the Al2O3 grid and on the entire Al2O3 grid.

[0036] Figure 2 yes Figure 1 Figure 3 is a schematic diagram of the cross-sectional structure of the ultra-wear-resistant and hydrophobic AG glass after a friction test (10,000 times of steel wool friction at a pressure of 500 grams). The hydrophobic layer above the Al2O3 grid is worn away, but the hydrophobic layer remains between the wires of the Al2O3 grid. This indicates that the AG glass prepared by the method of the present invention locks the hydrophobic layer through the Al2O3 grid, thereby improving the wear resistance of the hydrophobic layer.

[0037] Figure 3 This is a hydrophobic angle test diagram of the super wear-resistant and hydrophobic AG glass prepared in Example 1 before the friction test, and its hydrophobic angle is 158°.

[0038] Figure 4 This is a test graph of the hydrophobic angle of the super-wear-resistant and hydrophobic AG glass prepared in Example 1 after a friction test (10,000 times of steel wool friction with a pressure of 500 grams), and the hydrophobic angle is 141°. Figure 3 and Figure 4 The comparison shows that the hydrophobicity of the prepared AG glass is almost unchanged before and after the friction test, indicating that the AG glass prepared by the present invention locks the hydrophobic layer through the Al2O3 grid, thereby ensuring the hydrophobicity and anti-fouling and self-cleaning functions of the glass.

[0039] Example 2

[0040] (1) After cleaning the glass substrate 1, pour the silicone-acrylic emulsion on the glass substrate and roll it from one end of the glass to the other end using a Meyer rod to prepare a silicone-acrylic emulsion layer with a thickness of 10 μm on the glass surface. After drying at room temperature, the silicone-acrylic emulsion layer cracks to form multiple cracks with a crack width of 2 μm and a crack spacing of 15 μm, thus obtaining a mesh silicone-acrylic cracking template;

[0041] (2) An Al2O3 target with a purity of 99.99% was selected, and an Al2O3 film was prepared on the surface of the meshed silicon-propylene cracked template obtained in step (1) using magnetron sputtering coating technology. The deposition temperature was room temperature, the deposition gas was an argon-oxygen mixed gas, the flow ratio of argon to oxygen was 30:1, the sputtering pressure was 0.8 Pa, and the sputtering power was 100 W. After coating, the thickness of the Al2O3 film was 300 nm.

[0042] (3) After step (2) is completed, the obtained glass sample is placed in acetone and ultrasonically cleaned for 10 minutes. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid. The grid structure of the Al2O3 grid is complementary to the grid structure of the silicon-acrylic cracking template. The width of the mesh line 2 of the Al2O3 grid is 2 μm, and the mesh line spacing is 15 μm. Subsequently, the glass sample with the Al2O3 grid is annealed at 400°C for 30 minutes to improve the hardness of the Al2O3 grid and the bonding strength between the Al2O3 grid and the glass substrate.

[0043] (4) The glass sample after annealing treatment in step (3) is placed in a hydrophobic coating of a fluorosilane polymer and soaked at room temperature for 5 minutes. The hydrophobic coating is filled between the mesh wires of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer 3. After being taken out, it is baked at 80°C for 30 minutes to obtain an ultra-wear-resistant hydrophobic AG glass.

[0044] After testing, the ultra-wear-resistant and hydrophobic AG glass obtained in this embodiment has a visible light transmittance of 91.1%, a glossiness of 80 at 60°, a haze of 12%, a hydrophobic angle of 152°, and a hydrophobic angle of 136° after being rubbed with steel wool 10,000 times (500 grams of pressure).

[0045] Example 3

[0046] (1) After cleaning the glass substrate 1, pour the silicone-acrylic emulsion on the glass substrate and roll it from one end of the glass to the other end using a Meyer rod to prepare a 20 μm thick silicone-acrylic emulsion layer on the glass surface. After drying at room temperature, the silicone-acrylic emulsion layer cracks to form multiple cracks with a crack width of 3 μm and a crack spacing of 20 μm, thus obtaining a mesh silicone-acrylic cracking template.

[0047] (2) An Al2O3 target with a purity of 99.99% was selected, and an Al2O3 film was prepared on the surface of the meshed silicon-propylene cracked template obtained in step (1) using magnetron sputtering coating technology. The deposition temperature was room temperature, the deposition gas was an argon-oxygen mixed gas, the flow ratio of argon to oxygen was 30:1, the sputtering pressure was 1.2 Pa, and the sputtering power was 200 W. After coating, the thickness of the Al2O3 film was 1000 nm.

[0048] (3) After step (2) is completed, the obtained glass sample is placed in acetone and ultrasonically cleaned for 10 minutes. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid. The grid structure of the Al2O3 grid is complementary to the grid structure of the silicon-acrylic cracking template. The width of the mesh line 2 of the Al2O3 grid is 3 μm, and the mesh line spacing is 20 μm. Subsequently, the glass sample with the Al2O3 grid is annealed at 500°C for 10 minutes to improve the hardness of the Al2O3 grid and the bonding strength between the Al2O3 grid and the glass substrate.

[0049] (4) The glass sample after annealing treatment in step (3) is placed in a hydrophobic coating of a fluorosilane polymer and soaked at room temperature for 10 min. The hydrophobic coating is filled between the mesh wires of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer 3. After being taken out, it is baked at 80°C for 60 min to obtain an ultra-wear-resistant hydrophobic AG glass.

[0050] After testing, the ultra-wear-resistant and hydrophobic AG glass obtained in this embodiment has a visible light transmittance of 91.6%, a glossiness of 98 at 60°, a haze of 8.2%, a hydrophobic angle of 159°, and a hydrophobic angle of 143° after being rubbed with steel wool 10,000 times (500 grams of pressure).

[0051] Example 4

[0052] (1) After cleaning the glass substrate 1, pour the silicone-acrylic emulsion on the glass substrate and roll it from one end of the glass to the other end using a Meyer rod to prepare a 22 μm thick silicone-acrylic emulsion layer on the glass surface. After drying at room temperature, the silicone-acrylic emulsion layer cracks to form multiple cracks with a crack width of 2.3 μm and a crack spacing of 17 μm, thus obtaining a mesh silicone-acrylic cracking template.

[0053] (2) An Al2O3 target with a purity of 99.99% was selected, and an Al2O3 film was prepared on the surface of the meshed silicon-propylene cracked template obtained in step (1) using magnetron sputtering coating technology. The deposition temperature was room temperature, the deposition gas was an argon-oxygen mixed gas, the flow ratio of argon to oxygen was 30:1, the sputtering pressure was 1.1 Pa, and the sputtering power was 180 W. After coating, the thickness of the Al2O3 film was 800 nm.

[0054] (3) After step (2) is completed, the obtained glass sample is placed in acetone and ultrasonically cleaned for 10 minutes. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid. The grid structure of the Al2O3 grid is complementary to the grid structure of the silicon-acrylic cracking template. The width of the mesh line 2 of the Al2O3 grid is 2.3 μm, and the mesh line spacing is 17 μm. Subsequently, the glass sample with the Al2O3 grid is annealed at 500°C for 20 minutes to improve the hardness of the Al2O3 grid and the bonding strength between the Al2O3 grid and the glass substrate.

[0055] (4) The glass sample after annealing treatment in step (3) is placed in a hydrophobic coating of a fluorosilane polymer and soaked at room temperature for 8 minutes. The hydrophobic coating is filled between the mesh wires of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer 3. After being taken out, it is baked at 80°C for 60 minutes to obtain an ultra-wear-resistant hydrophobic AG glass.

[0056] After testing, the ultra-wear-resistant and hydrophobic AG glass obtained in this embodiment has a visible light transmittance of 91.3%, a glossiness of 88 at 60°, a haze of 9.2%, a hydrophobic angle of 157°, and a hydrophobic angle of 139° after being rubbed with steel wool 10,000 times (500 grams of pressure).

[0057] The above description is merely an embodiment of the present invention and does not constitute any form of limitation to the present invention. The present invention may also have other forms of embodiments based on the above structures and functions, which are not listed here one by one. Therefore, any simple modification, equivalent changes, and modifications made to the above embodiments by any person skilled in the art in accordance with the technical essence of the present invention without departing from the scope of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A super wear-resistant hydrophobic AG glass, characterized in that: The super-wear-resistant hydrophobic AG glass comprises a glass substrate coated with a cracked Al2O3 grid, wherein the mesh width of the Al2O3 grid is 2-3 μm and the mesh spacing is 15-25 μm. A hydrophobic coating is filled between the mesh lines of the Al2O3 grid and over the entire Al2O3 grid, wherein the hydrophobic coating is a fluorosilane polymer. The super-wear-resistant hydrophobic AG glass has a visible light transmittance of ≥91%, a glossiness of 80-100 at 60°, a haze of 8-12%, a hydrophobic angle of >150°, and a hydrophobic angle of >135° after 10,000 steel wool rubbings. The super-wear-resistant hydrophobic AG glass is prepared according to the following method: (1) After cleaning the glass substrate, a layer of silicone-acrylic emulsion was prepared on the glass surface by roller coating. After drying at room temperature, the silicone-acrylic emulsion layer cracked to form multiple cracks, obtaining a mesh silicone-acrylic cracking template. The crack width of the mesh silicone-acrylic cracking template was 2-3 μm, and the crack spacing was 15-25 μm. (2) Selecting Al2O3 target material, using magnetron sputtering coating technology to prepare Al2O3 thin film on the surface of the mesh silicon propylene cracking template obtained in step (1), the deposition temperature is room temperature, the deposition gas is argon oxygen mixed gas, the sputtering pressure is 0.8~1.2 Pa, and the sputtering power is 100~200 W; (3) After step (2) is completed, the obtained glass sample is placed in acetone for ultrasonic cleaning. During the ultrasonic cleaning process, the Al2O3 deposited in the cracks of the silicon-acrylic cracking template is left behind, and the silicon-acrylic cracking template is removed. The remaining Al2O3 protrudes on the glass surface to form a crack-shaped Al2O3 grid with a grid width of 2 to 3 μm and a grid spacing of 15 to 25 μm. Subsequently, the glass sample with the Al2O3 grid is annealed at 400°C to 500°C. (4) The glass sample annealed in step (3) is immersed in a fluorosilane polymer hydrophobic coating, taken out and baked to obtain an ultra-wear-resistant hydrophobic AG glass.

2. The super wear-resistant hydrophobic AG glass according to claim 1, characterized in that: The thickness of the silicone acrylic emulsion layer in step (1) is 10-20 μm.

3. The super wear-resistant hydrophobic AG glass according to claim 1, wherein: In step (2), the flow ratio of argon to oxygen in the argon-oxygen mixed gas is 30:

1. After coating, the thickness of the Al2O3 film is 300~1000 nm.

4. The super wear-resistant and hydrophobic AG glass according to claim 1, wherein: In step (3), the sample is ultrasonically cleaned in acetone for 10 to 15 minutes, and the annealing treatment time is 10 to 30 minutes.

5. The super wear-resistant and hydrophobic AG glass according to claim 1, wherein: The immersion in step (4) is carried out at room temperature for 5 to 20 minutes. The hydrophobic coating is filled between the mesh lines of the Al2O3 grid and on the entire Al2O3 grid to form a hydrophobic layer. After being taken out, it is baked at 80°C for 30 to 60 minutes.

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