High-transparency impact-resistant multilayer polycarbonate sheet material

Abstract

The utility model relates to the technical field of polycarbonate plates, in particular to a high-transparency impact-resistant multilayer polycarbonate plate. The utility model relates to a heat-insulating plate, which comprises a first polycarbonate plate and a second polycarbonate plate, a transparent acrylic plate is embedded between the first polycarbonate plate and the second polycarbonate plate, and a hollow bin and hollow glass beads filled in the hollow bin are arranged in the heat-insulating plate, so that the impact resistance and the heat-insulating effect of the whole structure are enhanced. The upper end of the first polycarbonate plate is coated with an infrared reflecting coating, and the lower end of the second polycarbonate plate is coated with an infrared absorbing coating, so that heat transfer passing through the plate is effectively adjusted. The surface of the whole board is further covered with a plurality of protective film layers including the waterproof film layer, the carbon dioxide titanium coating and the epoxy resin coating, and the weather resistance, the water resistance and the ultraviolet resistance of the board are improved through the coatings. The high-strength transparent plate ensures that the plate can keep good light transmittance and durability even in a severe environment, and is suitable for various application occasions needing high-strength transparent materials.

Description

Technical Field

[0001] This utility model relates to the field of polycarbonate sheet technology, and more specifically, to a high-transparency, impact-resistant multilayer polycarbonate sheet. Background Technology

[0002] Polycarbonate sheets, commonly known as PC sheets, are a new type of high-strength, high-transmittance square sheet made from polycarbonate polymers through chemical formulation and advanced extrusion technology. Due to their excellent mechanical and optical properties, polycarbonate sheets have become an ideal alternative to traditional architectural glass and acrylic glass. With the continuous advancement of modern science and technology, higher demands are being placed on the application of polycarbonate sheets. Especially in various usage scenarios, these sheets need not only a multi-layered composite structure but also to integrate more functions, such as infrared protection, waterproofing, and enhanced impact resistance.

[0003] The infrared-blocking polycarbonate multilayer boards currently available on the market have revealed some shortcomings in practical applications. For example, they have poor infrared protection performance and cannot effectively block the transfer of heat energy in solar radiation, leading to an increase in indoor temperature. At the same time, these boards often do not have good waterproof performance and are easily corroded in humid or rainy environments, affecting their service life and appearance quality. Utility Model Content

[0004] The purpose of this invention is to provide a high-transparency, impact-resistant multilayer polycarbonate sheet to solve the problems of poor infrared protection and lack of waterproofing of existing polycarbonate sheets, thereby improving its heat insulation, weather resistance and waterproofing performance.

[0005] To achieve the above objectives, a high-transparency, impact-resistant multilayer polycarbonate sheet is provided, comprising a polycarbonate sheet body, characterized in that: the polycarbonate sheet body comprises a first polycarbonate sheet and a second polycarbonate sheet, a transparent acrylic sheet is provided between the first polycarbonate sheet and the second polycarbonate sheet, and a plurality of hollow chambers are penetrated inside the transparent acrylic sheet, and a plurality of hollow glass beads are provided inside each hollow chamber.

[0006] As a further improvement to this technical solution, the upper end of the first polycarbonate plate is provided with an infrared reflective coating, the lower end of the second polycarbonate plate is provided with an infrared absorbent coating, and a protective film layer is provided above the first polycarbonate plate and below the second polycarbonate plate.

[0007] As a further improvement to this technical solution, the protective film layer includes a waterproof film layer disposed on the upper end of the infrared reflective coating, and a titanium carbon dioxide coating disposed on the lower end of the infrared absorbing coating.

[0008] As a further improvement to this technical solution, an epoxy resin coating is provided at the lower end of the carbon dioxide titanium coating.

[0009] As a further improvement to this technical solution, the epoxy resin coating has several through holes arranged in an internal array, and each through hole is filled with a conductor post.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This high-transparency, impact-resistant multilayer polycarbonate sheet incorporates a transparent acrylic sheet within the polycarbonate sheet body, with hollow chambers and hollow glass beads embedded within it, effectively enhancing the sheet's thermal insulation performance. Furthermore, the upper end of the first polycarbonate sheet has an infrared reflective coating, while the lower end of the second polycarbonate sheet has an infrared absorbing coating. This double-layer coating design significantly improves the sheet's ability to block infrared rays, reducing heat transfer and thus lowering the building's interior temperature, saving energy, and improving the comfort of the living or working environment.

[0012] 2. This high-transparency, impact-resistant multilayer polycarbonate sheet incorporates multiple protective film layers on its surface, including a waterproof film layer, a titanium dioxide coating, and an epoxy resin coating. These coatings not only provide excellent waterproof performance, preventing moisture penetration and damage, but also significantly improve the sheet's weather resistance. Especially under harsh weather conditions, such as prolonged exposure to sun and rain, these protective layers effectively resist the effects of ultraviolet radiation and other environmental factors, extending the sheet's lifespan and maintaining its aesthetic appearance and structural integrity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0014] Figure 2 This is a front structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the transparent acrylic sheet of this utility model.

[0016] The meanings of the labels in the diagram are as follows:

[0017] The components are: 1. Polycarbonate sheet body; 11. First polycarbonate sheet; 12. Second polycarbonate sheet; 2. Protective film layer; 21. Waterproof film layer; 22. Carbon dioxide titanium coating; 23. Epoxy resin coating; 24. Conductor column; 3. Infrared reflective coating; 4. Infrared absorbing coating; 5. Transparent acrylic sheet; 6. Hollow chamber; 7. Hollow glass beads. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Please see Figures 1-3 As shown, the purpose of this embodiment is to provide a high-transparency, impact-resistant multilayer polycarbonate sheet, including a polycarbonate sheet body 1, which comprises a first polycarbonate sheet 11 and a second polycarbonate sheet 12. These two polycarbonate sheets constitute the basic structure of the sheet, providing high strength and high light transmittance. To further enhance the thermal insulation performance of the sheet, a transparent acrylic sheet 5 is disposed between the first polycarbonate sheet 11 and the second polycarbonate sheet 12. The transparent acrylic sheet 5 has several hollow chambers 6 internally, which are filled with hollow glass beads 7. This design not only improves the overall rigidity and impact resistance of the sheet but also effectively reduces heat transfer through the low thermal conductivity of the hollow glass beads 7, thus enhancing the thermal insulation effect.

[0022] To enhance the infrared blocking capability of the panels, the upper part of the first polycarbonate panel 11 is coated with an infrared reflective coating 3, while the lower part of the second polycarbonate panel 12 is covered with an infrared absorbing coating 4. The infrared reflective coating 3 reflects most of the infrared radiation back, reducing the heat entering the room; the infrared absorbing coating 4 absorbs some of the infrared radiation, further reducing heat transfer. The combined use of these two coatings allows the panels to significantly reduce indoor temperature in summer and improve energy efficiency.

[0023] In addition, to protect the entire board from environmental factors, a protective film layer 2 is provided above the first polycarbonate board 11 and below the second polycarbonate board 12. The protective film layer 2 consists of multiple functional coatings: a waterproof film layer 21 is located above the infrared reflective coating 3, which can effectively prevent moisture penetration and keep the board dry; a titanium dioxide coating 22 is located below the infrared absorbing coating 4, which has good weather resistance and UV resistance, and can extend the service life of the board; below the titanium dioxide coating 22 is an epoxy resin coating 23, which has several through holes arranged in an array inside, and conductor posts 24 are inserted in the through holes. This not only enhances the mechanical strength of the board, but also improves its conductivity, making it suitable for applications requiring electrostatic control.

[0024] Through the above-mentioned multi-layer composite structure design, the high-transparency, impact-resistant multi-layer polycarbonate sheet of this utility model not only has excellent optical performance and mechanical strength, but also integrates multiple functions such as efficient heat insulation, infrared protection, waterproofing and weather resistance, enabling it to work stably for a long time in various harsh environments and meet the needs of more application scenarios.

[0025] Working Principle: Excellent optical performance and protective functions are achieved through the synergistic effect of a multi-layered composite structure and functional coatings. The first polycarbonate plate 11 and the second polycarbonate plate 12 constitute the basic structure of the sheet, providing high strength and high light transmittance. The transparent acrylic plate 5, along with its internal hollow chambers 6 and hollow glass beads 7, enhances the heat insulation effect and reduces heat transfer. Infrared reflective coating 3 and infrared absorbing coating 4 are respectively located at the upper end of the first polycarbonate plate 11 and the lower end of the second polycarbonate plate 12, effectively blocking and absorbing infrared rays to reduce indoor temperature. The protective film layer 2 includes a waterproof film layer 21, a titanium dioxide coating 22, and an epoxy resin coating 23. These coatings provide waterproof, weather-resistant, and UV-resistant protection, extending the sheet's service life. The conductor pillars 24 inside the epoxy resin coating 23 further enhance mechanical strength and electrical conductivity. Through this multi-layered design, the sheet can maintain its high performance and stability in various environments.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-transparency, impact-resistant multilayer polycarbonate sheet, comprising a polycarbonate sheet body (1), characterized in that: The polycarbonate sheet body (1) includes a first polycarbonate sheet (11) and a second polycarbonate sheet (12). A transparent acrylic sheet (5) is provided between the first polycarbonate sheet (11) and the second polycarbonate sheet (12). A plurality of hollow chambers (6) are penetrated inside the transparent acrylic sheet (5). A plurality of hollow glass beads (7) are provided inside each hollow chamber (6).

2. The high-transparency, impact-resistant multilayer polycarbonate sheet according to claim 1, characterized in that: The first polycarbonate plate (11) has an infrared reflective coating (3) on its upper end, and the second polycarbonate plate (12) has an infrared absorbent coating (4) on its lower end. A protective film layer (2) is provided above the first polycarbonate plate (11) and below the second polycarbonate plate (12).

3. The high-transparency, impact-resistant multilayer polycarbonate sheet according to claim 2, characterized in that: The protective film layer (2) includes a waterproof film layer (21) disposed on the upper end of the infrared reflective coating (3), and a titanium carbon dioxide coating (22) disposed on the lower end of the infrared absorbing coating (4).

4. The high-transparency, impact-resistant multilayer polycarbonate sheet according to claim 3, characterized in that: The lower end of the titanium dioxide coating (22) is provided with an epoxy resin coating (23).

5. The high-transparency, impact-resistant multilayer polycarbonate sheet according to claim 4, characterized in that: The epoxy resin coating (23) has several through holes arranged inside, and each through hole is filled with a conductor post (24).

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