Explosion-proof tempered glass and manufacturing method thereof
By adding modified explosion-proof film and metal wire between the two base layers of tempered glass, and performing initial pressure and high pressure treatment, the problem of interference at the stress junction when the ambient temperature changes is solved, the explosion-proof effect and structural strength are improved, the risk of self-explosion is reduced, and the use is safer.
Patent Information
- Application Number
- CN202411743671.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-03-21
AI Technical Summary
When the ambient temperature changes, existing tempered glass will interfere at the stress junction, affecting the stability of the structure, resulting in poor explosion-proof effect, and the possibility of self-destruction, which can easily cause danger during use.
Using an explosion-proof tempered glass, a modified explosion-proof film is added between the base layers of the two layers of glass and filled with metal wires. The modified explosion-proof film is made of raw materials such as terpene resin, methacrylic acid, cellulose, etc., and a splicing liquid is applied to enhance the structural strength of the splicing position, and it is firmly pressed through initial pressure and high pressure treatment.
It improves the structural strength of explosion-proof tempered glass, reduces the possibility of thermal cracking and self-destruction, is safer to use, and is easy to process without vacuuming.
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Figure CN119659114A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of tempered glass, in particular to explosion-proof tempered glass and a manufacturing method thereof. Background Art
[0002] Tempered glass, also known as strengthened glass, is a kind of prestressed glass. To improve the strength of glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity and enhancing the glass's own resistance to wind pressure, cold and heat, impact, etc. Compared with ordinary glass, tempered glass has higher safety, thermal stability and higher strength. With the promotion and popularization of tempered glass technology, tempered glass has been widely used in automobiles, construction, aviation, electronics and other fields.
[0003] Although the existing tempered glass is stronger than ordinary glass, the difference in ambient temperature on both sides of the tempered glass will be transmitted to the inside, causing interference at the stress junction, affecting the stability of the tempered glass structure. As the use time increases, the explosion-proof effect of tempered glass is relatively poor, and there is a possibility of self-explosion, which can easily cause danger during use. Summary of the invention
[0004] In order to overcome the technical defects of the prior art, the present invention provides an explosion-proof tempered glass to solve the problem mentioned in the above background technology that although the strength of the existing tempered glass is stronger than that of ordinary glass, after the difference in ambient temperature on both sides of the tempered glass is transmitted to the inside, interference will occur at the stress junction, affecting the stability of the tempered glass structure. As the use time increases, the explosion-proof effect of the tempered glass is relatively poor, and there is a possibility of self-explosion, which is easy to cause danger during use.
[0005] The technical solution adopted by the present invention is: the present invention provides an explosion-proof tempered glass, comprising a first glass substrate and a second glass substrate, wherein a modified explosion-proof film is arranged between the first glass substrate and the second glass substrate via a splicing liquid, wherein the modified explosion-proof film is filled with metal wires, and wherein the modified explosion-proof film comprises the following raw materials: Terpene resin, methacrylic acid, cellulose, plasticizer, dispersant, antioxidant, polyacrylate and anhydrous ethanol.
[0006] Preferably, the four corners of the first glass substrate and the second glass substrate are all provided with rounded corners.
[0007] Preferably, the metal wire is pure copper wire, the diameter of the metal wire is 0.3-0.6 mm, and the metal wire is woven into a mesh with horizontal and vertical square holes with an aperture of 5 mm.
[0008] Preferably, the terpene resin comprises 60-80 parts, methacrylic acid 10-20 parts, cellulose 5-10 parts, plasticizer 5-10 parts, dispersant 3-5 parts, antioxidant 2-3 parts, polyacrylate 2-3 parts and anhydrous ethanol 10-12 parts.
[0009] Preferably, the method for preparing the modified explosion-proof film comprises the following steps: S1. Grind and disperse the terpene resin, methacrylic acid and cellulose with a grinder, grind for 50-80 minutes, let stand for 2-3 hours, then add a plasticizer, a dispersant and an antioxidant and mix well to obtain a mixture; S2, pour the ground mixture into an extruder, the temperature of the extruder is controlled at 150-180 ° C, the mixture is melted and extruded from the discharge port into a film, the extruded film is placed in a cooling room for cooling and shaping, and when the solid performance of the extruded film is stable, a cutting machine is used to cut the required size to obtain an explosion-proof film; S3. Add polyacrylate into anhydrous ethanol and stir evenly to obtain a diluted polyacrylate solution. Put the washed and dried explosion-proof film into the hydrolyzed polyacrylate solution. Then increase the water temperature to 25-35°C and perform ultrasonic dispersion for penetration. Take out the film and wash it in pure water. Finally, dry it with hot air at 30-40°C to obtain the surface-treated modified explosion-proof film.
[0010] Preferably, the moisture content of the modified explosion-proof film after drying is ≤0.15%, the storage temperature of the modified film is between 20-26° C., and the air humidity is less than 30%.
[0011] Preferably, the dispersant is one of tristearin, stearamide and vinyl bisstearamide.
[0012] Preferably, the splicing fluid is prepared by mixing and stirring dibutyl sebacate, nano zinc oxide, nano tin oxide, water, acetone, methanol, octenic acid and fatty acid.
[0013] The present invention also provides a method for manufacturing explosion-proof tempered glass, comprising the following steps: Step 1: Cut the original glass sheet, clean and polish it to form a glass substrate, place the glass substrate horizontally on a roller, transfer it to a tempering furnace, heat it to 650-700°C, keep it for 200-300 seconds, then transfer it to a wind grid, cool it with cold air at a wind pressure of 12-15kPa for 20-25 seconds, so that the surface temperature of the glass substrate drops to 200-220°C, and then cool it to room temperature to complete the tempering treatment of the glass substrate; Step 2: Apply a splicing liquid on the splicing surface of the modified explosion-proof film and the glass base layer, and then stack the first glass base layer, the modified explosion-proof film, the metal wire, the modified explosion-proof film and the second glass base layer in sequence, and then use a hot press to perform initial pressure and high pressure between the tempered glass, the modified explosion-proof film and the metal wire to firmly press them together. Step 3: Transfer the pressed tempered glass to an annealing furnace with an initial temperature of 460-480°C and anneal it to room temperature. The small amount of air remaining at the joint will dissolve into the modified explosion-proof film to obtain high-strength explosion-proof tempered glass.
[0014] Preferably, the initial pressure temperature of the explosion-proof tempered glass is 120-180°C, the pressure is 0.8-0.9MPa, the high pressure temperature is 150-160°C, the pressure is 1.3-1.4KPa, and when the glass substrate is transferred to the tempering furnace, the tempering furnace is preheated first, and the preheating temperature is 500-560°C.
[0015] The explosion-proof tempered glass prepared by the present invention and the manufacturing method thereof, a modified explosion-proof film is added between two layers of glass base, polyacrylate is infiltrated in the modified explosion-proof film, and polyacrylate has strong adhesion ability, is soft and elastic, and has good light transmittance. At the same time, splicing liquid is applied to the splicing positions of each layer of the explosion-proof tempered glass, which can effectively improve the structural strength of the splicing positions and improve the overall performance of the explosion-proof tempered glass.
[0016] The beneficial effects of the present invention are as follows: the explosion-proof tempered glass obtained by initial pressure and high-pressure treatment has higher structural strength, and the method does not require vacuuming, and is very convenient to process. The built-in fine metal wire can evenly transfer the heat of the explosion-proof tempered glass, avoiding excessive internal stress caused by uneven temperature differences, and can effectively reduce the possibility of thermal cracking, and can effectively reduce the possibility of tempered glass self-explosion, and is very safe to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.
[0018] Figure 2 It is a schematic structural diagram of the metal wire of the present invention.
[0019] Explanation of the accompanying drawings: 1. First glass base layer; 2. Second glass base layer; 3. Splicing liquid; 4. Modified explosion-proof film; 5. Metal wire. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with embodiments: Example 1. The present invention of this embodiment provides an explosion-proof tempered glass, comprising a first glass substrate 1 and a second glass substrate 2, wherein a modified explosion-proof film 4 is arranged between the first glass substrate 1 and the second glass substrate 2 via a splicing fluid 3, wherein the modified explosion-proof film 4 is filled with a metal wire 5, and wherein the modified explosion-proof film 4 comprises the following raw materials: Terpene resin, methacrylic acid, cellulose, plasticizer, dispersant, antioxidant, polyacrylate and anhydrous ethanol; In this embodiment, the four corners of the first glass substrate 1 and the second glass substrate 2 are all provided with rounded corners.
[0021] The metal wire 5 of this embodiment is pure copper wire, the diameter of the metal wire 5 is 0.3 mm, and the metal wire 5 is woven into a mesh with horizontal and vertical square holes with a hole diameter of 5 mm: The present embodiment comprises 60 parts of terpene resin, 10 parts of methacrylic acid, 5 parts of cellulose, 5 parts of plasticizer, 3 parts of dispersant, 2 parts of antioxidant, 2 parts of polyacrylate and 10 parts of anhydrous ethanol.
[0022] The preparation method of the modified explosion-proof film of this embodiment comprises the following steps: S1. Grind and disperse the terpene resin, methacrylic acid and cellulose with a grinder, grind for 50 minutes, let stand for 2 hours, then add a plasticizer, a dispersant and an antioxidant and mix well to obtain a mixture; S2, pour the ground mixture into an extruder, the temperature of the extruder is controlled at 150 ° C, the mixture is melted and extruded from the discharge port into a film, the extruded film is placed in a cooling room for cooling and shaping, and when the solid performance of the extruded film is stable, a cutting machine is used to cut the required size to obtain an explosion-proof film; S3. Add polyacrylate into anhydrous ethanol and stir evenly to obtain a diluted polyacrylate solution. Put the washed and dried explosion-proof film into the hydrolyzed polyacrylate solution. Then increase the water temperature to 25°C and perform ultrasonic dispersion for penetration. Take out the film and wash it in pure water. Finally, dry it with hot air at 30°C to obtain the surface-treated modified explosion-proof film.
[0023] The moisture content of the modified explosion-proof film of this embodiment after drying is ≤0.15%, the storage temperature of the modified film is between 20° C., and the air humidity is less than 30%.
[0024] The dispersant in this embodiment is glyceryl tristearate.
[0025] The splicing liquid of this embodiment is prepared by mixing and stirring dibutyl sebacate, nano zinc oxide, nano tin oxide, water, acetone, methanol, octenic acid and fatty acid.
[0026] A method for manufacturing explosion-proof tempered glass in this embodiment includes the following steps: The steps include: Step 1: Cut the original glass sheet, clean and polish it to form a glass substrate, place the glass substrate horizontally on a roller, transfer it to a tempering furnace, heat it to 650°C, keep it for 200 seconds, then transfer it to a wind grid, cool it with cold air at a wind pressure of 12kPa for 20 seconds, so that the surface temperature of the glass substrate drops to 200°C, and then cool it to room temperature to complete the tempering treatment of the glass substrate; Step 2: Apply a splicing liquid on the splicing surface of the modified explosion-proof film and the glass base layer, and then stack the first glass base layer, the modified explosion-proof film, the metal wire, the modified explosion-proof film and the second glass base layer in sequence, and then use a hot press to perform initial pressure and high pressure between the tempered glass, the modified explosion-proof film and the metal wire to firmly press them together. Step 3: Transfer the pressed tempered glass to an annealing furnace with an initial temperature of 460°C and anneal it to room temperature. The small amount of air remaining at the joint will dissolve into the modified explosion-proof film to obtain high-strength explosion-proof tempered glass.
[0027] The initial pressure temperature of the explosion-proof tempered glass of this embodiment is 120°C, the pressure is 0.8MPa, the high pressure temperature is 150°C, the pressure is 1.3KPa, and when the glass substrate is transferred to the tempering furnace, the tempering furnace is preheated first, and the preheating temperature is 500°C.
[0028] Example 2. The present invention of this embodiment provides an explosion-proof tempered glass, comprising a first glass substrate 1 and a second glass substrate 2, wherein a modified explosion-proof film 4 is arranged between the first glass substrate 1 and the second glass substrate 2 via a splicing fluid 3, wherein the modified explosion-proof film 4 is filled with a metal wire 5, and wherein the modified explosion-proof film 4 comprises the following raw materials: Terpene resin, methacrylic acid, cellulose, plasticizer, dispersant, antioxidant, polyacrylate and anhydrous ethanol; In this embodiment, the four corners of the first glass substrate 1 and the second glass substrate 2 are all provided with rounded corners.
[0029] The metal wire 5 of this embodiment is pure copper wire, the diameter of the metal wire 5 is 0.5 mm, and the metal wire 5 is woven into a mesh with horizontal and vertical square holes with a hole diameter of 5 mm: The present embodiment comprises 70 parts of terpene resin, 15 parts of methacrylic acid, 7 parts of cellulose, 8 parts of plasticizer, 4 parts of dispersant, 2.5 parts of antioxidant, 2.5 parts of polyacrylate and 11 parts of anhydrous ethanol.
[0030] The preparation method of the modified explosion-proof film of this embodiment comprises the following steps: S1. Grind and disperse the terpene resin, methacrylic acid and cellulose with a grinder, grind for 66 minutes, let stand for 2.5 hours, then add a plasticizer, a dispersant and an antioxidant and mix well to obtain a mixture; S2, pour the ground mixture into an extruder, the temperature of the extruder is controlled at 160 ° C, the mixture is melted and extruded from the discharge port into a film, the extruded film is placed in a cooling room for cooling and shaping, and when the solid performance of the extruded film is stable, a cutting machine is used to cut the required size to obtain an explosion-proof film; S3. Add polyacrylate into anhydrous ethanol and stir evenly to obtain a diluted polyacrylate solution. Put the washed and dried explosion-proof film into the hydrolyzed polyacrylate solution. Then increase the water temperature to 28°C and perform ultrasonic dispersion for penetration. Take out the film and wash it in pure water. Finally, dry it with hot air at 35°C to obtain the surface-treated modified explosion-proof film.
[0031] The moisture content of the modified explosion-proof film of this embodiment after drying is ≤0.15%, and the storage temperature of the modified film is between 24° C. and the air humidity is less than 30%.
[0032] The dispersant in this embodiment is stearamide.
[0033] The splicing liquid of this embodiment is prepared by mixing and stirring dibutyl sebacate, nano zinc oxide, nano tin oxide, water, acetone, methanol, octenic acid and fatty acid.
[0034] A method for manufacturing explosion-proof tempered glass in this embodiment includes the following steps: The steps include: Step 1: Cut the original glass sheet, clean and polish it to form a glass substrate, place the glass substrate horizontally on a roller, transfer it to a tempering furnace, heat it to 660°C, keep it for 250 seconds, then transfer it to a wind grid, cool it with cold air at a wind pressure of 13kPa for 22 seconds, so that the surface temperature of the glass substrate drops to 210°C, and then cool it to room temperature to complete the tempering treatment of the glass substrate; Step 2: Apply a splicing liquid on the splicing surface of the modified explosion-proof film and the glass base layer, and then stack the first glass base layer, the modified explosion-proof film, the metal wire, the modified explosion-proof film and the second glass base layer in sequence, and then use a hot press to perform initial pressure and high pressure between the tempered glass, the modified explosion-proof film and the metal wire to firmly press them together. Step 3: Transfer the pressed tempered glass to an annealing furnace with an initial temperature of 470°C and anneal it to room temperature. The small amount of air remaining at the joint will dissolve into the modified explosion-proof film to obtain high-strength explosion-proof tempered glass.
[0035] The initial pressure temperature of the explosion-proof tempered glass of this embodiment is 150°C, the pressure is 0.88MPa, the high pressure temperature is 155°C, the pressure is 1.35KPa, and when the glass base layer is transferred to the tempering furnace, the tempering furnace is preheated first, and the preheating temperature is 550°C.
[0036] Example 3. The present invention of this embodiment provides an explosion-proof tempered glass, comprising a first glass substrate 1 and a second glass substrate 2, wherein a modified explosion-proof film 4 is arranged between the first glass substrate 1 and the second glass substrate 2 via a splicing fluid 3, wherein the modified explosion-proof film 4 is filled with a metal wire 5, and wherein the modified explosion-proof film 4 comprises the following raw materials: Terpene resin, methacrylic acid, cellulose, plasticizer, dispersant, antioxidant, polyacrylate and anhydrous ethanol; In this embodiment, the four corners of the first glass substrate 1 and the second glass substrate 2 are all provided with rounded corners.
[0037] The metal wire 5 of this embodiment is pure copper wire, the diameter of the metal wire 5 is 0.6 mm, and the metal wire 5 is woven into a mesh with horizontal and vertical square holes with a hole diameter of 5 mm: The present embodiment comprises 80 parts of terpene resin, 20 parts of methacrylic acid, 10 parts of cellulose, 10 parts of plasticizer, 5 parts of dispersant, 3 parts of antioxidant, 3 parts of polyacrylate and 12 parts of anhydrous ethanol.
[0038] The preparation method of the modified explosion-proof film of this embodiment comprises the following steps: S1. Grind and disperse the terpene resin, methacrylic acid and cellulose with a grinder, grind for 80 minutes, let stand for 3 hours, then add a plasticizer, a dispersant and an antioxidant and mix well to obtain a mixture; S2, pour the ground mixture into an extruder, the temperature of the extruder is controlled at 180 ° C, the mixture is melted and extruded from the discharge port into a film, the extruded film is placed in a cooling room for cooling and shaping, and when the solid performance of the extruded film is stable, a cutting machine is used to cut the required size to obtain an explosion-proof film; S3. Add polyacrylate into anhydrous ethanol and stir evenly to obtain a diluted polyacrylate solution. Put the washed and dried explosion-proof film into the hydrolyzed polyacrylate solution. Then increase the water temperature to 35°C and perform ultrasonic dispersion for penetration. Take out the film and wash it in pure water. Finally, dry it with hot air at 40°C to obtain a surface-treated modified explosion-proof film.
[0039] The moisture content of the modified explosion-proof film of this embodiment after drying is ≤0.15%, the storage temperature of the modified film is between 26° C., and the air humidity is less than 30%.
[0040] The dispersant in this embodiment is stearamide.
[0041] The splicing liquid of this embodiment is prepared by mixing and stirring dibutyl sebacate, nano zinc oxide, nano tin oxide, water, acetone, methanol, octenic acid and fatty acid.
[0042] A method for manufacturing explosion-proof tempered glass in this embodiment includes the following steps: The steps include: Step 1: Cut the original glass sheet, clean and polish it to form a glass substrate, place the glass substrate horizontally on a roller, transfer it to a tempering furnace, heat it to 700°C, keep it for 300 seconds, then transfer it to a wind grid, cool it with cold air at a wind pressure of 15kPa for 25 seconds, so that the surface temperature of the glass substrate drops to 200-220°C, and then cool it to room temperature to complete the tempering treatment of the glass substrate; Step 2: Apply a splicing liquid on the splicing surface of the modified explosion-proof film and the glass base layer, and then stack the first glass base layer, the modified explosion-proof film, the metal wire, the modified explosion-proof film and the second glass base layer in sequence, and then use a hot press to perform initial pressure and high pressure between the tempered glass, the modified explosion-proof film and the metal wire to firmly press them together. Step 3: Transfer the pressed tempered glass to an annealing furnace with an initial temperature of 480°C and anneal it to room temperature. The small amount of air remaining at the joint will dissolve into the modified explosion-proof film to obtain high-strength explosion-proof tempered glass.
[0043] The initial pressure temperature of the explosion-proof tempered glass of this embodiment is 180°C, the pressure is 0.9MPa, the high pressure temperature is 160°C, the pressure is 1.4KPa, and when the glass base layer is transferred to the tempering furnace, the tempering furnace is preheated first, and the preheating temperature is 560°C.
[0044] Comparative Example 1. The difference from Example 3 is that no splicing fluid is used in the pressing process of the explosion-proof tempered glass.
[0045] Comparative Example 2. The difference from Example 3 is that in step 2, the explosion-proof tempered glass is not subjected to initial pressure but directly subjected to high pressure.
[0046] Comparative Example 3. The difference from Example 3 is that no metal wire and infiltrated polyacrylate are arranged in the modified explosion-proof film.
[0047] The products of Examples 1-3 and Comparative Examples 1-3 were subjected to performance tests; The produced explosion-proof tempered glass was divided into 6 groups, each group corresponding to Examples 1-3 and Comparative Examples 1-3 and numbered A / B / C / D / E / F. The explosion-proof tempered glass was tested, and the test results are shown in the following table.
[0048] It can be seen from Examples 1-3 that the explosion-proof tempered glass made by the present invention and its manufacturing method do not require vacuuming, are very convenient to process, can effectively improve the structural strength of the splicing position, and improve the overall performance of the explosion-proof tempered glass due to its strong adhesion ability, softness and elasticity, and good light transmittance.
[0049] It can be seen from Comparative Example 1, Comparative Example 2 and Example 3 that a modified explosion-proof film is added between the two layers of glass base, and a splicing liquid is applied to the splicing positions of each layer of explosion-proof tempered glass. The structural strength of the splicing position can be effectively improved through initial pressure and high pressure, thereby improving the overall performance of the explosion-proof tempered glass. In addition, it is found from Comparative Example 3 and Example 1 that polyacrylate is infiltrated into the modified explosion-proof film, and the built-in thin metal wire can evenly transfer the heat of the explosion-proof tempered glass, avoid excessive internal stress caused by uneven temperature difference, effectively reduce the possibility of self-explosion of the tempered glass, and is very safe to use.
[0050] The innovation of the present invention is: The present invention adds a modified explosion-proof film between two layers of glass base, and polyacrylate is infiltrated into the modified explosion-proof film. Due to its strong adhesion, softness and elasticity, and good light transmittance, splicing liquid is applied to the splicing positions of each layer of explosion-proof tempered glass, which can effectively improve the structural strength of the splicing positions and improve the overall performance of the explosion-proof tempered glass. The explosion-proof tempered glass obtained by initial pressure and high-pressure treatment has higher structural strength, and the method does not require vacuuming, so the processing is very convenient. The built-in fine metal wire can evenly transfer the heat of the explosion-proof tempered glass, avoid excessive internal stress caused by uneven temperature difference, effectively reduce the possibility of thermal cracking, and effectively reduce the possibility of self-explosion of the tempered glass, so it is very safe to use.
[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An explosion-proof tempered glass, characterized in that: The invention comprises a first glass substrate (1) and a second glass substrate (2), wherein a modified explosion-proof film (4) is arranged between the first glass substrate (1) and the second glass substrate (2) via a splicing fluid (3), wherein the modified explosion-proof film (4) is filled with metal wires (5), and wherein the modified explosion-proof film (4) comprises the following raw materials: Terpene resin, methacrylic acid, cellulose, plasticizer, dispersant, antioxidant, polyacrylate and anhydrous ethanol.
2. The explosion-proof tempered glass according to claim 1, characterized in that: The first glass substrate (1) and the second glass substrate (2) are provided with rounded corners at their four corners.
3. The explosion-proof tempered glass according to claim 1, characterized in that: The metal wire (5) is pure copper wire, the diameter of the metal wire (5) is 0.3-0.6 mm, and the metal wire (5) is woven into a mesh with horizontal and vertical square holes with a hole diameter of 5 mm.
4. The explosion-proof tempered glass according to claim 1, characterized in that: The terpene resin comprises 60-80 parts, methacrylic acid 10-20 parts, cellulose 5-10 parts, plasticizer 5-10 parts, dispersant 3-5 parts, antioxidant 2-3 parts, polyacrylate 2-3 parts and anhydrous ethanol 10-12 parts.
5. The explosion-proof tempered glass according to claim 1, characterized in that: The preparation method of the modified explosion-proof film comprises the following steps: S1. Grind and disperse the terpene resin, methacrylic acid and cellulose with a grinder, grind for 50-80 minutes, let stand for 2-3 hours, then add a plasticizer, a dispersant and an antioxidant and mix well to obtain a mixture; S2, pour the ground mixture into an extruder, the temperature of the extruder is controlled at 150-180 ° C, the mixture is melted and extruded from the discharge port into a film, the extruded film is placed in a cooling room for cooling and shaping, and when the solid performance of the extruded film is stable, a cutting machine is used to cut the required size to obtain an explosion-proof film; S3. Add polyacrylate into anhydrous ethanol and stir evenly to obtain a diluted polyacrylate solution. Put the washed and dried explosion-proof film into the hydrolyzed polyacrylate solution. Then increase the water temperature to 25-35°C and perform ultrasonic dispersion for penetration. Take out the film and wash it in pure water. Finally, dry it with hot air at 30-40°C to obtain the surface-treated modified explosion-proof film.
6. The explosion-proof tempered glass according to claim 5, characterized in that: The moisture content of the modified explosion-proof film after drying is ≤0.15%, the storage temperature of the modified film is between 20-26° C., and the air humidity is less than 30%.
7. The explosion-proof tempered glass according to claim 1, characterized in that: The dispersant is one of tristearic acid glyceryl, stearamide and vinyl bisstearamide.
8. The explosion-proof tempered glass according to claim 1, characterized in that: The splicing liquid is prepared by mixing and stirring dibutyl sebacate, nano zinc oxide, nano tin oxide, water, acetone, methanol, octenic acid and fatty acid.
9. A method for manufacturing explosion-proof tempered glass according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Cut the original glass sheet, clean and polish it to form a glass substrate, place the glass substrate horizontally on a roller, transfer it to a tempering furnace, heat it to 650-700°C, keep it for 200-300 seconds, then transfer it to a wind grid, cool it with cold air at a wind pressure of 12-15kPa for 20-25 seconds, so that the surface temperature of the glass substrate drops to 200-220°C, and then cool it to room temperature to complete the tempering treatment of the glass substrate; Step 2: Apply a splicing liquid on the splicing surface of the modified explosion-proof film and the glass base layer, and then stack the first glass base layer, the modified explosion-proof film, the metal wire, the modified explosion-proof film and the second glass base layer in sequence, and then use a hot press to perform initial pressure and high pressure between the tempered glass, the modified explosion-proof film and the metal wire to firmly press them together. Step 3: Transfer the pressed tempered glass to an annealing furnace with an initial temperature of 460-480°C and anneal it to room temperature. The small amount of air remaining at the joint will dissolve into the modified explosion-proof film to obtain high-strength explosion-proof tempered glass.
10. The method for manufacturing explosion-proof tempered glass according to claim 9, characterized in that: The initial pressure temperature of the explosion-proof tempered glass is 120-180°C, and the pressure is 0.8-0.9MPa. The high pressure temperature is 150-160°C, and the pressure is 1.3-1.4KPa. When the glass substrate is transferred to the tempering furnace, the tempering furnace is preheated first, and the preheating temperature is 500-560°C.
Citation Information
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