A PC polycarbonate windshield and preparation method thereof

Abstract

The present invention provides a PC polycarbonate windshield and a preparation method thereof, and relates to the field of glass technology. The PC polycarbonate windshield comprises a No. 1 glass plate, wherein a No. 1 through hole is provided at the center of the four sides of the front side of the No. 1 glass plate near the edge, and a sealing seat is fixedly provided at the front side of the No. 1 glass plate near the No. 1 through hole. The present invention provides excellent transparency, hardness and corrosion resistance through a multi-layer composite design, while also having higher strength and impact resistance. In addition, the preparation method adopts liquid metal printing, dynamic thermal diffusion and photocatalytic ripening technology, and ensures high bonding strength and excellent comprehensive performance between the layers of the windshield by precisely controlling the growth and bonding of each layer of material. This multi-layer composite structure and advanced preparation method not only significantly improve the safety and durability of the windshield, but also enhance its stability and service life under various environmental conditions.

Description

Technical Field

[0001] The invention relates to the technical field of glass, in particular to a PC polycarbonate windshield and a preparation method thereof. Background Art

[0002] Glass is an amorphous solid material, usually formed by the rapid cooling of molten silicates, with silicon dioxide (SiO 2 ), with transparency, hardness, brittleness and corrosion resistance. Glass has a wide range of uses. First of all, in the field of construction, glass is widely used in windows, doors, curtain walls, skylights, etc., which not only allows light to pass through, but also has good heat and sound insulation properties. In food and pharmaceutical packaging, glass bottles and glass jars are widely used because they do not react chemically with the contents, and are used to store food, beverages, medicines and cosmetics. In optical equipment, glass is used to make glasses, camera lenses, microscopes, telescopes, etc., because of its ability to refract and focus light. In the field of household and decoration, glass is used to make tableware, lamps, mirrors and various decorations to increase beauty and functionality. In the automotive industry, glass is used for front windshields, side windows and rearview mirrors to provide vision and safety. In the field of electronic products, glass is used to make screens (such as mobile phone, computer and tablet screens) and solar panels. In scientific and laboratory equipment, glass beakers, test tubes and reaction vessels are widely used because glass is chemically resistant and transparent for easy observation.

[0003] Traditional windshields are mainly made of ordinary glass or tempered glass, which have obvious limitations in strength, impact resistance and crack resistance, and cannot meet the high requirements of modern vehicles for safety and durability. In addition, traditional preparation methods mostly use simple melting and molding processes, lacking fine control over the material hierarchy and interface bonding, resulting in low overall performance of windshields, especially in terms of stability and service life in extreme environments. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a PC polycarbonate windshield and a preparation method thereof, which solves the problem of low performance of the prior windshield.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A PC polycarbonate windshield, comprising a No. 1 glass plate, wherein a No. 1 through hole is provided at the center of the four sides of the front side of the No. 1 glass plate near the edge, and a sealing seat is fixedly provided at the front side of the No. 1 glass plate near the No. 1 through hole; A sealing ring is fixedly arranged at the rear end of the No. 1 glass plate, No. 2 through holes are opened at the center of the four sides of the front side, the No. 2 glass plate is fixedly arranged at the rear end of the sealing ring, and extension rods are fixedly arranged at the center of the four sides of the front side of the No. 2 glass plate near the edge, and the front ends of the four extension rods pass through the No. 1 through hole and the No. 2 through hole, and pass to the No. 1 glass plate, where a bent rod is fixedly arranged, and push rods are fixedly arranged at one end of the rear side of the four bent rods, and sealing pistons are fixedly arranged at the rear ends of the four push rods; The No. 1 glass plate includes a No. 1 protective film, a first substrate is arranged inside the No. 1 protective film, a second substrate is arranged inside the first substrate, a third substrate is arranged inside the second substrate, and a No. 2 protective film is arranged inside the third substrate.

[0006] Preferably, the first protective film is made of a nano-cellulose composite film, the first substrate is made of a transparent alumina ceramic glass material, the second substrate is made of a polyfluorene-based polymer material, the third substrate is made of a PC polycarbonate material, and the second protective film is made of a titanium dioxide coating material.

[0007] Preferably, the sealing ring is made of transparent rubber material.

[0008] Preferably, the No. 1 through hole and the No. 2 through hole are connected, the interior of the sealing seat is in a negative pressure state by setting a sealing piston, and the space formed by the No. 1 glass plate, the No. 2 glass plate and the sealing ring is in a vacuum state.

[0009] Preferably, the No. 1 glass plate and the No. 2 glass plate have the same structure, and the No. 2 protective film is in opposite directions and is located at the outermost layer.

[0010] A method for preparing a PC polycarbonate windshield comprises the following steps: S1. Material preparation Prepare a mixed solution of nanocellulose and graphene, a precursor slurry of transparent alumina ceramics, a transparent conductive polymer solution, a PC polycarbonate slurry and an aqueous dispersion of nano-titanium dioxide, and add an interface regulator to the material solutions of each layer; S2. Preparation of protective film No. 1 The nanocellulose composite membrane solution is printed layer by layer on the substrate by a liquid metal printer to form a No. 1 protective film; S3. Preparation of the first substrate Printing transparent alumina ceramic precursor slurry layer by layer on the first protective film by a liquid metal printer to form a first substrate; S4. Preparation of the Second Substrate Printing a transparent conductive polymer solution layer by layer on the first substrate by a liquid metal printer to form a second substrate; S5. Preparation of the third substrate Printing PC polycarbonate slurry layer by layer on the second substrate by a liquid metal printer to form a third substrate; S6. Preparation of No. 2 protective film Printing nano-titanium dioxide aqueous dispersion layer by layer on the third substrate by a liquid metal printer to form a second protective film; S7. Multilayer combination The multilayer structure is placed in a growth chamber that simulates the natural environment, and the pH value, temperature and humidity of the growth chamber are controlled to promote the bionic growth and bonding of each layer of material.

[0011] Preferably, in the method, the multilayer structure is placed in a dynamic heat diffusion device, and through local heating and cooling, each layer of material forms a gradient structure on the interface to enhance the interlayer bonding force.

[0012] Preferably, in the method, the multilayer structure is placed in a photocatalytic ripening device, and irradiated with light of a specific wavelength to promote the ripening and self-assembly of the material, thereby further enhancing the interlayer bonding force and the self-cleaning effect of the surface.

[0013] Preferably, the interface regulator is a silane coupling agent, the control conditions of the growth chamber are pH 7.0, temperature 25°C, and relative humidity 60%, the local heating temperature of the dynamic thermal diffusion device is 120°C, the local cooling temperature is 20°C, and the light wavelength of the photocatalytic ripening device is 365nm.

[0014] The present invention provides a PC polycarbonate windshield and a preparation method thereof, which has the following beneficial effects: 1. The present invention provides a PC polycarbonate windshield and a preparation method thereof. The windshield of the present invention adopts a variety of high-performance materials, such as nanocellulose composite film, transparent alumina ceramic glass material, polyfluorene-based polymer material, PC polycarbonate material and titanium dioxide coating. These materials have unique advantages in transparency, hardness, corrosion resistance and impact resistance, and can significantly improve the overall performance of the windshield. For example, the nanocellulose composite film has excellent protective performance, the transparent alumina ceramic glass material provides high strength and corrosion resistance, the polyfluorene-based polymer material has good transparent conductive properties, and the PC polycarbonate material gives the windshield extremely high impact resistance and toughness.

[0015] 2. The present invention provides a PC polycarbonate windshield and a preparation method thereof. The preparation method of the present invention adopts liquid metal printing, dynamic heat diffusion and photocatalytic ripening technology. Through the fine control of the material hierarchy and interface bonding, the efficient bonding and uniform distribution of each layer of materials are ensured. The liquid metal printing technology can realize the precise deposition of materials at the microscopic level. The dynamic heat diffusion equipment forms a gradient structure at the material interface through local heating and cooling to enhance the interlayer bonding force. The photocatalytic ripening equipment promotes the ripening and self-assembly of the material through light irradiation of a specific wavelength, thereby further improving the self-cleaning effect and overall stability of the surface.

[0016] 3. The present invention provides a PC polycarbonate windshield and a preparation method thereof. The windshield of the present invention is designed with a sealing ring and a sealing piston structure, which increase the overall buffering force and stability through mutual cooperation under a negative pressure state. When the windshield is subjected to external impact force, the sealing ring will be slightly compressed, and at the same time, the sealing piston will further increase the buffering force under the action of negative pressure suction, thereby effectively reducing the damage to the glass caused by the impact. This multi-level buffering mechanism significantly improves the safety and durability of the windshield. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front view axle side of the present invention; Figure 2 It is a rear-view axle side schematic diagram of the present invention; Figure 3 It is a schematic diagram of the explosion axis side of the present invention; Figure 4 It is a front view schematic diagram of the present invention; Figure 5 For the present invention Figure 4 AA cross-sectional view of ; Figure 6 This is a schematic diagram of the structure of glass plate No. 1 of the present invention.

[0018] Among them, 1. Glass plate No. 1; 2. Sealing seat; 3. Through hole No. 1; 4. Through hole No. 2; 5. Sealing ring; 6. Push rod; 7. Glass plate No. 2; 8. Extension rod; 9. Bending rod; 10. Sealing piston; 101. Protective film No. 1; 102. First substrate; 103. Second substrate; 104. Third substrate; 105. Protective film No. 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] like Figure 1-6 As shown, an embodiment of the present invention provides a PC polycarbonate windshield, comprising a first glass plate 1, a first through hole 3 is provided at the center of the four sides of the front side of the first glass plate 1 near the edge, and a sealing seat 2 is fixedly provided at the front side of the first glass plate 1 near the first through hole 3; A sealing ring 5 is fixedly provided at the rear end of the No. 1 glass plate 1, and a No. 2 through hole 4 is opened at the center of the four sides of the front side. A No. 2 glass plate 7 is fixedly provided at the rear end of the sealing ring 5. An extension rod 8 is fixedly provided at the center of the four sides of the front side of the No. 2 glass plate 7 near the edge. The front ends of the four extension rods 8 pass through the No. 1 through hole 3 and the No. 2 through hole 4, and pass to the No. 1 glass plate 1. A bending rod 9 is fixedly provided at the front side of the No. 1 glass plate 1. Push rods 6 are fixedly provided at one end of the rear side of the four bending rods 9. A sealing piston 10 is fixedly provided at the rear end of the four push rods 6. The first glass plate 1 includes a first protective film 101 , a first substrate 102 is arranged inside the first protective film 101 , a second substrate 103 is arranged inside the first substrate 102 , a third substrate 104 is arranged inside the second substrate 103 , and a second protective film 105 is arranged inside the third substrate 104 .

[0021] The first protective film 101 is made of a nano-cellulose composite film, the first substrate 102 is made of a transparent alumina ceramic glass material, the second substrate 103 is made of a polyfluorene-based polymer material, the third substrate 104 is made of a PC polycarbonate material, and the second protective film 105 is made of a titanium dioxide coating material.

[0022] The sealing ring 5 is made of transparent rubber material. The No. 1 through hole 3 and the No. 2 through hole 4 are connected. The interior of the sealing seat 2 is in a negative pressure state by setting a sealing piston 10. The space formed by the No. 1 glass plate 1, the No. 2 glass plate 7 and the sealing ring 5 is in a vacuum state. The No. 1 glass plate 1 and the No. 2 glass plate 7 have the same structure, and the No. 2 protective film 105 is in opposite directions and is located at the outermost layer.

[0023] When the windshield prepared by the present invention is subjected to external impact force, the sealing ring 5 will be slightly compressed, so that the distance between the first glass plate 1 and the second glass plate 7 will change. In this process, since the sealing piston 10 is located inside the sealing seat 2, it plays a role in further increasing the buffering force under the suction state of negative pressure, and cooperates with the sealing ring 5 to increase the overall stability. Example

[0024] A method for preparing a PC polycarbonate windshield, comprising the following steps: S1. Material preparation Prepare a mixed solution of nanocellulose and graphene, a precursor slurry of transparent alumina ceramics, a transparent conductive polymer solution, a PC polycarbonate slurry and an aqueous dispersion of nano-titanium dioxide, and add an interface regulator to the material solutions of each layer; S2. Preparation of protective film No. 1 The nanocellulose composite membrane solution is printed layer by layer on the substrate by a liquid metal printer to form a No. 1 protective film; S3. Preparation of the first substrate Printing transparent alumina ceramic precursor slurry layer by layer on the first protective film by a liquid metal printer to form a first substrate; S4. Preparation of the Second Substrate Printing a transparent conductive polymer solution layer by layer on the first substrate by a liquid metal printer to form a second substrate; S5. Preparation of the third substrate Printing PC polycarbonate slurry layer by layer on the second substrate by a liquid metal printer to form a third substrate; S6. Preparation of No. 2 protective film Printing nano-titanium dioxide aqueous dispersion layer by layer on the third substrate by a liquid metal printer to form a second protective film; S7. Multilayer combination The multilayer structure is placed in a growth chamber that simulates the natural environment, and the pH value, temperature and humidity of the growth chamber are controlled to promote the bionic growth and bonding of each layer of material.

[0025] In the method, the multilayer structure is placed in a dynamic heat diffusion device, and through local heating and cooling, each layer of material forms a gradient structure on the interface to enhance the interlayer bonding force. In the method, the multilayer structure is placed in a photocatalytic aging device, and through light irradiation of a specific wavelength, the aging and self-assembly of the material are promoted, and the interlayer bonding force and the self-cleaning effect of the surface are further enhanced. The interface regulator is a silane coupling agent, the control conditions of the growth chamber are pH 7.0, temperature 25°C, humidity 60% relative humidity, the local heating temperature of the dynamic heat diffusion device is 120°C, the local cooling temperature is 20°C, and the light wavelength of the photocatalytic aging device is 365nm.

[0026] Multi-material composite structure The present invention uses a variety of high-performance materials, including nanocellulose composite film, transparent alumina ceramic glass material, polyfluorene-based polymer material, PC polycarbonate material and titanium dioxide coating. These materials have their own advantages in transparency, hardness, corrosion resistance and impact resistance. Through composite structure design, they can give full play to their respective characteristics and improve the overall performance of the windshield.

[0027] The nanocellulose composite film (protective film No. 1 101) provides excellent protection performance and has good wear resistance and scratch resistance. The transparent alumina ceramic glass material (first substrate 102) has high hardness and corrosion resistance, which significantly improves the mechanical strength and chemical stability of the windshield. The polyfluorene-based polymer material (second substrate 103) has transparent conductive properties and can realize functions such as electric heating and defogging without affecting transparency. The PC polycarbonate material (third substrate 104) has high impact resistance and toughness, and can effectively resist external impact and physical damage. The titanium dioxide coating (protective film No. 2 105) has a self-cleaning function, which decomposes organic pollutants attached to the surface through photocatalysis, reduces the accumulation of stains, and maintains a clear field of vision.

[0028] Fine preparation process By printing each layer of material solution layer by layer with a liquid metal printer, precise deposition of materials can be achieved at the microscopic level, ensuring uniform distribution and high-quality bonding of each layer of materials. Local heating and cooling technology enables each layer of material to form a gradient structure at the interface, enhancing the interlayer bonding force and further improving the overall stability and mechanical strength of the windshield. By irradiating with light of a specific wavelength (365nm), the maturation and self-assembly of the material are promoted, which not only enhances the interlayer bonding force, but also improves the self-cleaning effect and optical properties of the surface. The use of silane coupling agents effectively improves the interface bonding between the layers of materials, improving the overall tight bonding and durability.

[0029] Multi-level buffering mechanism The present invention designs a sealing ring 5 and a sealing piston 10 structure, which cooperate with each other under negative pressure to increase the buffering performance of the windshield. When the windshield is impacted by the outside world, the sealing ring 5 will be slightly compressed, and the sealing piston 10 will further increase the buffering force under the action of negative pressure suction, significantly reducing the damage to the glass caused by the impact, and improving safety and durability.

[0030] Excellent optical performance Each layer of the multi-layer composite structure has excellent transparency, ensuring the windshield has excellent performance in light transmission and providing a clear view. The transparent conductive properties of polyfluorene-based polymers can achieve electric heating defog without affecting transparency, thereby maintaining a good view in extreme weather conditions.

[0031] High weather resistance and long life The present invention places the multi-layer structure in a growth chamber that simulates the natural environment, and by controlling the pH value (7.0), temperature (25°C) and humidity (60% relative humidity) of the growth chamber, the bionic growth and bonding of each layer of material is promoted, ensuring the long-term stability and weather resistance of the material under a variety of environmental conditions. Through local heating (120°C) and cooling (20°C) technology, a gradient structure is formed at the material interface, which further enhances the interlayer bonding force and improves the overall durability and service life. The No. 2 protective film 105 uses nano-titanium dioxide material, which is irradiated with a specific wavelength of light (365nm) from a photocatalytic aging device, which can decompose organic pollutants attached to the surface, reduce the accumulation of stains, and keep the windshield surface clean, thereby improving the driver's field of vision clarity and driving safety.

[0032] The windshield adopts a double structure of glass plate No. 1 1 and glass plate No. 2 7, and the vacuum state is maintained through the negative pressure space formed by the sealing ring 5 and the sealing piston 10. This not only improves the sound insulation and heat insulation performance of the windshield, but also enhances the overall structural stability and durability. The structure of glass plate No. 1 1 and glass plate No. 2 7 is the same, and the direction of the second protective film 105 is opposite, ensuring that the outermost layer has a two-way protection capability, effectively resisting external pollutants and physical damage, and further improving the comprehensive performance of the windshield.

[0033] 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 PC polycarbonate windshield, comprising a first glass plate (1), characterized in that: A through hole (3) is provided at the center of the four sides of the front side of the glass plate (1) near the edge, and a sealing seat (2) is fixedly provided at the front side of the glass plate (1) near the through hole (3); A sealing ring (5) is fixedly provided at the rear end of the first glass plate (1), second through holes (4) are provided at the center of the four sides of the front side, a second glass plate (7) is fixedly provided at the rear end of the sealing ring (5), extension rods (8) are fixedly provided at the center of the four sides of the front side of the second glass plate (7) near the edge, the front ends of the four extension rods (8) pass through the first through hole (3) and the second through hole (4) and are connected to the front side of the first glass plate (1) where a bending rod (9) is fixedly provided, push rods (6) are fixedly provided at one end of the rear side of the four bending rods (9), and sealing pistons (10) are fixedly provided at the rear ends of the four push rods (6); The first glass plate (1) comprises a first protective film (101), a first substrate (102) is arranged inside the first protective film (101), a second substrate (103) is arranged inside the first substrate (102), a third substrate (104) is arranged inside the second substrate (103), and a second protective film (105) is arranged inside the third substrate (104).

2. A PC polycarbonate windshield according to claim 1, characterized in that: The first protective film (101) is made of a nano-cellulose composite film, the first substrate (102) is made of a transparent alumina ceramic glass material, the second substrate (103) is made of a polyfluorene-based polymer material, the third substrate (104) is made of a PC polycarbonate material, and the second protective film (105) is made of a titanium dioxide coating material.

3. The PC polycarbonate windshield according to claim 1, characterized in that: The sealing ring (5) is made of a transparent rubber material.

4. The PC polycarbonate windshield according to claim 1, characterized in that: The first through hole (3) and the second through hole (4) are in communication, the interior of the sealing seat (2) is in a negative pressure state by arranging a sealing piston (10), and the space formed by the first glass plate (1), the second glass plate (7) and the sealing ring (5) is in a vacuum state.

5. The PC polycarbonate windshield according to claim 1, characterized in that: The first glass plate (1) and the second glass plate (7) have the same structure, and the second protective film (105) is in opposite directions and is located at the outermost layer.

6. A method for preparing a PC polycarbonate windshield according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. Material preparation Prepare a mixed solution of nanocellulose and graphene, a precursor slurry of transparent alumina ceramics, a transparent conductive polymer solution, a PC polycarbonate slurry and an aqueous dispersion of nano-titanium dioxide, and add an interface regulator to the material solutions of each layer; S2. Preparation of protective film No. 1 The nanocellulose composite membrane solution is printed layer by layer on the substrate by a liquid metal printer to form a No. 1 protective film; S3. Preparation of the first substrate Printing transparent alumina ceramic precursor slurry layer by layer on the first protective film by a liquid metal printer to form a first substrate; S4. Preparation of the Second Substrate Printing a transparent conductive polymer solution layer by layer on the first substrate by a liquid metal printer to form a second substrate; S5. Preparation of the third substrate Printing PC polycarbonate slurry layer by layer on the second substrate by a liquid metal printer to form a third substrate; S6. Preparation of No. 2 protective film Printing nano-titanium dioxide aqueous dispersion layer by layer on the third substrate by a liquid metal printer to form a second protective film; S7. Multilayer combination The multilayer structure is placed in a growth chamber that simulates the natural environment, and the pH value, temperature and humidity of the growth chamber are controlled to promote the bionic growth and bonding of each layer of material.

7. A method for preparing a PC polycarbonate windshield according to claim 6, characterized in that: In the method, a multilayer structure is placed in a dynamic heat diffusion device, and through local heating and cooling, each layer of material forms a gradual structure on the interface to enhance the bonding force between the layers.

8. The method for preparing a PC polycarbonate windshield according to claim 6, characterized in that: In the method, the multilayer structure is placed in a photocatalytic ripening device, and the ripening and self-assembly of the material are promoted by irradiation with light of a specific wavelength, thereby further enhancing the interlayer bonding force and the self-cleaning effect of the surface.

9. The method for preparing a PC polycarbonate windshield according to claim 6, characterized in that: The interface regulator is a silane coupling agent, the control conditions of the growth chamber are pH 7.0, temperature 25°C, and relative humidity 60%, the local heating temperature of the dynamic thermal diffusion device is 120°C, the local cooling temperature is 20°C, and the light wavelength of the photocatalytic ripening device is 365nm.

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