A highly corrosion-resistant polycarbonate sheet

Abstract

This invention discloses a highly corrosion-resistant polycarbonate sheet, comprising a polycarbonate sheet body composed of an inner base layer, a co-extruded absorbent layer, and a corrosion-resistant layer. The inner base layer is the innermost layer of the polycarbonate sheet body, and the corrosion-resistant layer is the outermost layer. This invention reduces the impact of impurities on material properties by using a weather-resistant polycarbonate polymer raw material for the inner base layer. During the production of the polycarbonate sheet body, a UV co-extruded absorbent layer is co-extruded to block a large amount of ultraviolet radiation, delaying material aging. A nano-scale corrosion-resistant layer, formed through an impregnation process, forms a dense protective film on the polycarbonate sheet body, balancing conductivity, heat dissipation, and corrosion resistance. Epoxy resin potting compound is used to seal the sides of the polycarbonate sheet body, enhancing its resistance to salt spray and mold, and improving the surface's resistance to chemical corrosion.

Description

Technical Field

[0001] This utility model relates to the field of polycarbonate sheet technology, and in particular to a highly corrosion-resistant polycarbonate sheet. Background Technology

[0002] Polycarbonate sheets are made from polycarbonate polymers using advanced formulation and extrusion technology. They are a new type of high-strength, light-transmitting building material with excellent comprehensive performance. They are an ideal alternative to glass and plexiglass and are widely used in architectural decoration fields such as skylights and canopies.

[0003] Existing polycarbonate sheets, when used in outdoor settings such as canopies, suffer from poor corrosion resistance and waterproofing due to long-term exposure to the natural environment, thus affecting their service life. This paper proposes a polycarbonate sheet with high corrosion resistance. Utility Model Content

[0004] To address the shortcomings and defects in existing technologies, this utility model proposes a highly corrosion-resistant polycarbonate sheet to solve the technical problem that existing polycarbonate sheets, when used in outdoor scenarios such as canopies, suffer from poor corrosion resistance and waterproofing due to long-term exposure to the natural environment, thus affecting their service life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A highly corrosion-resistant polycarbonate sheet includes a polycarbonate sheet body, which is composed of an inner base layer, a co-extruded absorbent layer, and a corrosion-resistant layer. The inner base layer is the innermost layer of the polycarbonate sheet body, and the corrosion-resistant layer is the outermost layer of the polycarbonate sheet body. Both the co-extruded absorbent layer and the corrosion-resistant layer are double-layered, with the double-layered co-extruded absorbent layer located between the double-layered corrosion-resistant layer and the inner base layer.

[0007] Preferably, the inner base layer is made of a weather-resistant polycarbonate polymer.

[0008] Preferably, the co-extruded absorption layer is an ultraviolet absorption layer formed using co-extrusion technology.

[0009] Preferably, the corrosion-resistant layer is a nanoscale anti-corrosion coating formed by an immersion process.

[0010] Preferably, the polycarbonate sheet body has an edge sealing layer wrapped around its four sides.

[0011] Preferably, the edge sealing layer is made of epoxy resin potting compound.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By using a weather-resistant polycarbonate polymer raw material as the inner base layer, the influence of impurities on material properties is reduced. During the production of the polycarbonate sheet body, a UV co-extrusion absorption layer is co-extruded, which can block a large amount of ultraviolet rays and delay material aging.

[0014] 2. A nano-level corrosion-resistant layer is formed by using an immersion process to create a dense protective film on the polycarbonate board body, which takes into account conductivity, heat dissipation and corrosion resistance. Epoxy resin potting compound is used to seal the sides of the polycarbonate board body to enhance the salt spray resistance and mildew protection of the polycarbonate board body and improve the chemical corrosion resistance of the polycarbonate board body surface. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a highly corrosion-resistant polycarbonate sheet proposed in this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of a highly corrosion-resistant polycarbonate sheet proposed in this utility model;

[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 1. Polycarbonate sheet body, 2. Inner base layer, 3. Co-extruded absorbent layer, 4. Corrosion resistant layer, 5. Edge sealing layer. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3A highly corrosion-resistant polycarbonate sheet includes a polycarbonate sheet body 1, which is composed of an inner base layer 2, a co-extruded absorbent layer 3, and a corrosion-resistant layer 4. The inner base layer 2 is the innermost layer of the polycarbonate sheet body 1, and the corrosion-resistant layer 4 is the outermost layer. Both the co-extruded absorbent layer 3 and the corrosion-resistant layer 4 are double-layered. The double-layered co-extruded absorbent layer 3 is located between the double-layered corrosion-resistant layer 4 and the inner base layer 2. The inner base layer 2 is made of a weather-resistant polycarbonate polymer. Using a weather-resistant polycarbonate polymer as the inner base layer 2 reduces the impact of impurities on the material properties. The co-extruded absorbent layer 3 is an ultraviolet absorbing layer formed by co-extrusion technology. During the production process of the polycarbonate sheet body 1, the ultraviolet co-extruded absorbent layer 3 is co-extruded, which can block a large amount of ultraviolet rays and delay the aging of the material.

[0022] The corrosion-resistant layer 4 is a nano-level anti-corrosion coating formed by an immersion process. The nano-level corrosion-resistant layer 4 formed by the immersion process forms a dense protective film on the polycarbonate board body 1, which takes into account conductivity, heat dissipation and corrosion resistance. The four sides of the polycarbonate board body 1 are wrapped with an edge sealing layer 5. The edge sealing layer 5 is made of epoxy resin potting compound. The epoxy resin potting compound is used to seal the sides of the polycarbonate board body 1, which enhances the salt spray resistance and mildew protection of the polycarbonate board body 1, so that the edge sealing layer 5 improves the chemical corrosion resistance of the surface of the polycarbonate board body 1.

[0023] In use, this invention utilizes an inner base layer 2 made of highly weather-resistant polycarbonate polymer raw material to reduce the impact of impurities on material properties. During the production of the polycarbonate sheet body 1, a co-extruded ultraviolet co-extrusion absorption layer 3 is formed, which can block a large amount of ultraviolet light and delay the aging of the material. A nano-level corrosion-resistant layer 4, formed by an immersion process, forms a dense protective film on the polycarbonate sheet body 1, taking into account conductivity, heat dissipation, and corrosion resistance. Epoxy resin potting compound is used to seal the sides of the polycarbonate sheet body 1, enhancing its resistance to salt spray and mildew protection. This edge sealing layer 5 improves the chemical corrosion resistance of the polycarbonate sheet body 1 surface.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polycarbonate sheet having high corrosion resistance, comprising a polycarbonate sheet body (1), characterized by, The polycarbonate board body (1) is composed of an inner base layer (2), a co-extruded absorbent layer (3) and a corrosion-resistant layer (4). The inner base layer (2) is the innermost layer of the polycarbonate board body (1), and the corrosion-resistant layer (4) is the outermost layer of the polycarbonate board body (1). Both the co-extruded absorbent layer (3) and the corrosion-resistant layer (4) are double-layered, with the double co-extruded absorbent layer (3) located between the double corrosion-resistant layer (4) and the inner base layer (2).

2. The polycarbonate sheet with high corrosion resistance according to claim 1, characterized in that, The inner base layer (2) is made of polycarbonate polymer with strong weather resistance.

3. The polycarbonate sheet with high corrosion resistance according to claim 1, characterized in that, The co-extruded absorption layer (3) is an ultraviolet absorption layer formed by co-extrusion technology.

4. The polycarbonate sheet with high corrosion resistance according to claim 1, characterized in that, The corrosion-resistant layer (4) is a nano-level anti-corrosion coating formed by an immersion process.

5. The polycarbonate sheet with high corrosion resistance according to claim 1, characterized in that, The polycarbonate sheet body (1) is wrapped with an edge sealing layer (5) on all four sides.

6. The polycarbonate sheet with high corrosion resistance according to claim 5, characterized in that, The edge sealing layer (5) is made of epoxy resin potting compound.

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