Composite board and building panel

Abstract

The present application provides a composite board and a building panel. The composite board comprises: a metal substrate; and a waterproof layer, which is at least partially provided on a first side surface of the substrate, the material of the waterproof layer being thermoplastic polyolefin or polyvinyl chloride. On the basis of the technology in the present application, the reliability and durability of the composite board are improved.

Description

Composite panels and building panels Technical Field

[0001] The present application relates to the technical field of building materials, and in particular to a composite board and a building panel. Background Art

[0002] Metal roofing is a building material that covers the roof of a building with sheet metal. Typically made from materials such as aluminum, zinc, copper, and steel, metal roofing offers excellent durability and fire resistance. Currently, a common waterproofing measure involves applying a waterproof coating to the roof. However, metal roofing is prone to damage during installation, which can compromise the waterproof coating and compromise its performance.

[0003] Summary of the Invention

[0004] Purpose of the invention: In order to solve the problems existing in the prior art, the present application provides a composite board and a building panel to solve or alleviate one or more technical problems in the prior art.

[0005] Technical solution: In order to solve the above technical problems, the present invention adopts the following technical solution:

[0006] A composite plate comprises: a metal substrate; a waterproof layer, at least partly arranged on a first side surface of the metal substrate, wherein the waterproof layer is made of thermoplastic polyolefin or polyvinyl chloride.

[0007] In one embodiment, the waterproof layer has a thickness of 0.2 to 1.8 mm.

[0008] In one embodiment, the waterproof layer includes a first area facing the first side surface and a second area extending to the outside of the edge of the metal substrate.

[0009] In one embodiment, the thickness of the metal substrate is 0.2 to 1.2 mm.

[0010] In one embodiment, the metal substrate is made of steel, aluminum alloy, stainless steel, copper alloy or zinc alloy.

[0011] In one embodiment, the composite plate further includes an anti-corrosion layer, which is disposed on a second side surface of the substrate opposite to the first side surface, and is made of polyethylene, thermoplastic polyolefin, or polyvinyl chloride.

[0012] In one embodiment, the thickness of the anti-corrosion layer is less than or equal to the thickness of the waterproof layer.

[0013] In one embodiment, the anti-corrosion layer has a thickness of 0.03 to 1.8 mm.

[0014] As another aspect of the embodiments of the present application, the embodiments of the present application further provide a building panel, comprising a plurality of composite boards according to any one of the above embodiments of the present application, wherein two adjacent composite boards are connected by a waterproof layer.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] According to the technology of this application, by providing a separate waterproof layer on the first side surface of the metal substrate, and the material of the waterproof layer can be made of polyvinyl chloride or thermoplastic polyolefin, the waterproof layer can be separately provided on the first side surface of the metal substrate after the metal substrate is pressed and installed, thereby preventing the waterproof layer from being damaged during the installation process of the metal substrate, thereby improving the reliability and durability of the composite board. In addition, by providing an anti-corrosion layer on the second side surface of the metal substrate, the probability of corrosion and leakage of the composite board can be further reduced, thereby further improving the reliability and durability of the composite board.

[0017] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0019] FIG1 shows a schematic structural diagram of a composite plate according to an embodiment of the present application;

[0020] FIG2 shows another structural schematic diagram of a composite board according to an embodiment of the present application.

[0021] Description of reference numerals: composite plate 1; metal substrate 10; waterproof layer 20; first region 21; second region 22; anti-corrosion layer 30. DETAILED DESCRIPTION

[0022] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] Figure 1 shows a schematic structural diagram of a composite sheet material 1 according to an embodiment of the present application. As shown in Figure 1 , the composite sheet material 1 includes a metal substrate 10 and a waterproof layer 20. At least a portion of the waterproof layer 20 is disposed on a first side surface of the metal substrate 10. The waterproof layer 20 is made of thermoplastic polyolefin or polyvinyl chloride.

[0024] The composite sheet 1 of the embodiment of the present application can be used for metal roofing. It is understood that metal roofing is a building roofing system that uses metal materials as roof coverings. This roofing system is widely used in the construction industry and its main features are durability, weather resistance and aesthetics.

[0025] In the following description of this application, the first side surface and the second side surface of the metal substrate 10 refer to two side surfaces arranged opposite each other in a direction perpendicular to the plane of the metal substrate 10. More specifically, the first side surface may be the side facing outdoors during the metal roof installation process, and the second side surface may be the side facing indoors during the metal roof installation process.

[0026] In addition, the shape of the metal substrate 10 can be any shape, for example, it can be a flat plate, or it can be a non-flat plate with alternating concave and convex portions, which is not specifically limited in the embodiment of the present application.

[0027] In an embodiment of the present application, the waterproof layer 20 can be made of waterproof roll. The model of the waterproof roll can be selected according to the specific application scenario and needs of the composite board 1 to meet the waterproof requirements of different places and applications. For example, the models of the waterproof roll may include P-type, H-type, L-type, G-type and GL-type. P-type waterproof roll usually refers to the general standard model, which is suitable for general roof and basement waterproofing needs. H-type waterproof roll is a high root penetration resistance (Root Resistant) model, which is suitable for planted roofs or special occasions that need to resist root penetration. L-type waterproof roll is a low-temperature flexibility (Low-Temperature Flexibility) model, which is suitable for cold areas or occasions that need to be constructed in a low-temperature environment. G-type waterproof roll is a glass fiber reinforced (Glass Fiber Reinforced) model with higher strength and stability, suitable for places with high mechanical performance requirements. GL-type waterproof roll is a glass fiber reinforced high root penetration resistance model, which combines the characteristics of G-type waterproof roll and H-type waterproof roll, and is suitable for applications with high root penetration and mechanical performance requirements.

[0028] In one example, the material of the waterproof layer 20 may include thermoplastic polyolefin (TPO), and the waterproof layer 20 may specifically be a TPO waterproof membrane. It is understood that TPO waterproof membrane, also known as thermoplastic polyolefin waterproof membrane, is a new type of waterproof membrane made from a thermoplastic polyolefin synthetic resin that combines ethylene propylene rubber and polypropylene using advanced polymerization technology, with antioxidants, anti-aging agents, and softeners added. A reinforced waterproof membrane can be made by using polyester fiber mesh as an internal reinforcement material, and is a synthetic polymer waterproof membrane product.

[0029] In another example, the waterproof layer 20 may be made of polyvinyl chloride (PVC), specifically a PVC waterproof membrane. As will be appreciated, PVC waterproof membrane is a waterproof material used in areas such as building roofs and basements. It is composed of polyvinyl chloride (PVC) resin, plasticizers, stabilizers, fillers, and other additives, and exhibits excellent weather resistance, chemical resistance, corrosion resistance, and heat resistance.

[0030] In the embodiment of the present application, the waterproof layer 20 can be made of TPO waterproof membrane or PVC waterproof membrane according to actual needs, and the embodiment of the present application does not make any specific limitations on this.

[0031] For example, the waterproof layer 20 and the metal substrate 10 may be fixed in any manner. For example, the waterproof layer 20 may be fixed to the first side surface of the metal substrate 10 using fasteners (such as screws), or may be fixed to the first side surface of the metal substrate 10 by bonding, which is not specifically limited in this embodiment of the present application.

[0032] Compared with the related art in which a metal roof is waterproofed by applying a waterproof coating on the surface of a substrate or directly using a color steel plate, the composite panel 1 of the embodiment of the present application is provided with a separate waterproof layer 20 on the first side surface of the metal substrate 10, and the material of the waterproof layer 20 can be polyvinyl chloride or thermoplastic polyolefin. Therefore, after the metal substrate 10 is pressed and installed, a separate waterproof layer 20 can be provided on the first side surface of the metal substrate 10, thereby avoiding damage to the waterproof layer 20 during the installation process of the metal substrate 10, thereby improving the reliability and durability of the composite panel 1.

[0033] In one embodiment, the waterproof layer 20 has a thickness of 0.2 to 1.8 mm.

[0034] It is understandable that if the thickness of the waterproof layer 20 is less than 0.2 mm, although the material cost of the waterproof layer can be reduced to a certain extent, the waterproof layer 20 is easily damaged due to the excessive thickness of the waterproof layer 20; if the thickness of the waterproof layer 20 is greater than 1.8 mm, although the durability of the waterproof layer 20 can be improved, the material cost of the waterproof layer 20 is relatively high due to the excessive thickness of the waterproof layer 20.

[0035] Therefore, the thickness of the waterproof layer 20 may be 0.2 to 1.8 mm, so as to take into account both the durability and material cost of the waterproof layer 20. Preferably, the thickness of the waterproof layer 20 may be 0.8 to 1.2 mm.

[0036] In one embodiment, the waterproof layer 20 includes a first region 21 facing the first side surface and a second region 22 extending to the outside of the edge of the metal substrate 10 .

[0037] It is understood that the first region 21 of the waterproof layer 20 is the region that mates with the first side surface of the metal substrate 10, and the area of ​​the first region 21 of the waterproof layer 20 is substantially the same as the area of ​​the first side surface of the metal substrate 10. The second region 22 of the waterproof layer 20 is adjacent to the first region 21 and extends to the outer area of ​​the first side surface of the waterproof layer 20.

[0038] In one example, the waterproof layer 20 includes two second regions 22, and the two second regions 22 are located on opposite sides of the first region 21 in a first direction of the metal substrate 10. The first direction may be the length or width of the metal substrate 10. More specifically, the second region 22 may extend in the first direction from 20 to 80 mm.

[0039] In another example, the waterproof layer 20 includes four second regions 22, two of which are located on opposite sides of the first region 21 in the first direction of the metal substrate 10, and the other two second regions 22 are located on opposite sides of the first region 21 in the second direction of the metal substrate 10. The first and second directions are perpendicular to each other and can be the length and width of the metal substrate 10, respectively. More specifically, the second regions 22 can extend from 20 to 80 mm in either the first or second direction.

[0040] It should be noted that in metal roofing applications, multiple composite panels 1 according to the present invention can be arranged adjacent to each other. Two adjacent composite panels 1 can be connected via the second regions 22 of their respective waterproof layers 20, thereby assembling multiple composite panels 1 into a building panel. The second regions 22 of the waterproof layers 20 of adjacent composite panels 1 can be connected by adhesive bonding or fixed with fasteners.

[0041] The above embodiment reduces the difficulty of connecting multiple composite panels 1. The metal substrates 10 of adjacent composite panels 1 do not need to overlap, thus ensuring the flatness of the building panel. Furthermore, the interconnected second regions 22 provide a waterproof barrier between the metal substrates 10 of adjacent composite panels 1, thereby improving the overall waterproof performance of the building panel. Furthermore, this improves the sealing performance of the building panel, providing not only improved waterproofing but also dustproofing.

[0042] In one embodiment, the thickness of the metal substrate 10 is 0.2 to 1.2 mm.

[0043] In the embodiment of the present application, the thickness of the metal substrate 10 can be specifically set according to the material of the metal substrate 10. Optionally, the material of the metal substrate 10 is steel, aluminum alloy, stainless steel, copper alloy or zinc alloy.

[0044] For example, when the material of the metal substrate 10 is steel, the thickness of the metal substrate 10 can be 0.5 to 1.2 mm, or 0.6 to 0.8 mm. When the material of the metal substrate 10 is aluminum alloy, the thickness of the metal substrate 10 can be 0.7 to 1.2 mm, or 0.9 to 1.1 mm. When the material of the metal substrate 10 is stainless steel, the thickness of the metal substrate 10 can be 0.5 to 1.2 mm, or 0.7 to 1.0 mm. When the material of the metal substrate 10 is copper alloy, the thickness of the metal substrate 10 can be 0.6 to 1.2 mm, or 0.7 to 0.8 mm. When the material of the metal substrate 10 is zinc alloy, the thickness of the metal substrate 10 can be 0.7 to 1.2 mm, or 0.7 to 0.9 mm.

[0045] In one embodiment, the composite plate 1 further includes an anti-corrosion layer 30, which is disposed on a second side surface of the metal substrate 10 opposite to the first side surface. The material of the anti-corrosion layer 30 is polyethylene (PE), thermoplastic polyolefin, or polyvinyl chloride.

[0046] In the embodiment of the present application, the anti-corrosion layer 30 may be made of the same material as the waterproof layer 20 , or may be made of a different material from the waterproof layer 20 .

[0047] For example, in a metal roof application scenario, the second side surface of the metal substrate 10 may be the side facing indoors. Compared to the waterproof layer 20 disposed on the second side surface facing outdoors, the environment in which the anti-corrosion layer 30 is located is better than that in which the waterproof layer 20 is located. Therefore, the anti-corrosion layer 30 can be made of polyethylene, which has a lower material cost, to reduce the overall material cost of the composite sheet 1. In addition, the anti-corrosion layer 30 may be a plating layer or a coating, which is not specifically limited in this embodiment of the present application.

[0048] Optionally, the thickness of the anti-corrosion layer 30 is less than or equal to the thickness of the waterproof layer 20. Further, the thickness of the anti-corrosion layer 30 is 0.03 to 1.8 mm.

[0049] In a specific example, the anti-corrosion layer 30 may be a polyethylene film layer with a thickness of 0.1 mm; the waterproof layer 20 may be a TPO waterproof membrane or a PVC waterproof membrane with a thickness of 1.2 mm.

[0050] In another specific example, the anti-corrosion layer 30 may be a TPO waterproof membrane or a PVC waterproof membrane with a thickness of 0.2 mm; the waterproof layer 20 may be a TPO waterproof membrane or a PVC waterproof membrane with a thickness of 1.2 mm.

[0051] According to the above embodiment, by providing the anti-corrosion layer 30 on the second side surface of the metal substrate 10 , the probability of corrosion and leakage of the composite plate 1 can be further reduced, thereby further improving the reliability and durability of the composite plate 1 .

[0052] As another aspect of the embodiments of the present application, the embodiments of the present application further provide a building panel, comprising a plurality of composite boards according to any one of the above embodiments of the present application, wherein two adjacent composite boards are connected by a waterproof layer.

[0053] The building panels according to the embodiments of the present application utilize the composite sheet material of the aforementioned embodiments, thereby preventing damage to the waterproof layer during installation of the metal substrate, thereby improving the reliability and durability of the composite sheet material. Furthermore, by providing an anti-corrosion layer on the second side surface of the metal substrate, the probability of corrosion and leakage of the composite sheet material can be further reduced, thereby further improving the reliability and durability of the building panels.

[0054] Other components of the building panel of the above embodiment may adopt various technical solutions known to those skilled in the art now and in the future, and will not be described in detail here.

[0055] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0056] 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 being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0057] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0059] The disclosure above provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A composite sheet, characterized in that: include: metal substrate; The waterproof layer comprises a first area disposed opposite to the first side surface of the metal substrate and a second area extending to the outside of the edge of the metal substrate; an anti-corrosion layer, the anti-corrosion layer being disposed on a second side surface of the metal substrate opposite to the first side surface, The material of the waterproof layer is thermoplastic polyolefin or polyvinyl chloride; The material of the anti-corrosion layer is polyethylene, thermoplastic polyolefin or polyvinyl chloride; The thickness of the waterproof layer is 0.2 to 1.8 mm; The thickness of the anti-corrosion layer is smaller than the thickness of the waterproof layer.

2. A composite sheet, characterized in that: include: metal substrate; The waterproof layer is at least partially disposed on the first side surface of the metal substrate, and the material of the waterproof layer is thermoplastic polyolefin or polyvinyl chloride.

3. The composite sheet material according to claim 2, characterized in that: The thickness of the waterproof layer is 0.2 to 1.8 mm, preferably, the thickness of the waterproof layer is 0.8 to 1.2 mm.

4. The composite sheet material according to claim 2, characterized in that: The waterproof layer includes a first area arranged opposite to the first side surface and a second area extending to the outside of the edge of the metal substrate.

5. The composite sheet material according to claim 4, characterized in that: There are two second regions, and the two second regions are located at opposite sides of the first region in a first direction of the metal substrate. The first direction is the length direction or the width direction of the metal substrate. The extension dimension of the second region in the first direction is 20 to 80 mm.

6. The composite sheet material according to claim 4, characterized in that: There are four second regions, two of which are located on opposite sides of the first region in the first direction of the metal substrate, and the other two second regions are located on opposite sides of the first region in the second direction of the metal substrate. The first direction and the second direction are perpendicular to each other, and an extension dimension of the second region in the first direction or the second direction is 20 to 80 mm.

7. The composite sheet material according to claim 4, characterized in that: The first direction and the second direction are respectively the length direction and the width direction of the metal substrate.

8. The composite sheet material according to claim 2, characterized in that: The waterproof layer and the metal substrate are connected via fasteners; Alternatively, the waterproof layer and the metal substrate are fixed by bonding.

9. The composite sheet material according to claim 2, characterized in that: The thickness of the metal substrate is 0.2 to 1.2 mm.

10. The composite sheet material according to claim 2, characterized in that: The material of the metal substrate is steel, aluminum alloy, stainless steel, copper alloy or zinc alloy.

11. The composite sheet material according to claim 10, characterized in that: The material of the metal substrate is steel, and the thickness of the metal substrate is 0.5 to 1.2 mm; or, the material of the metal substrate is aluminum alloy, and the thickness of the metal substrate is 0.7 to 1.2 mm; or, the material of the metal substrate is stainless steel, and the thickness of the metal substrate is 0.5 to 1.2 mm; or, the material of the metal substrate is copper alloy, and the thickness of the metal substrate is 0.6 to 1.2 mm; or, the material of the metal substrate is zinc alloy, and the thickness of the metal substrate is 0.7 to 1.2 mm.

12. The composite sheet material according to any one of claims 2 to 11, characterized in that: The composite sheet material also includes: An anti-corrosion layer is arranged on a second side surface of the metal substrate opposite to the first side surface, and a material of the anti-corrosion layer is polyethylene, thermoplastic polyolefin or polyvinyl chloride.

13. The composite sheet material according to claim 12, characterized in that: The thickness of the anti-corrosion layer is less than or equal to the thickness of the waterproof layer. Preferably, the thickness of the anti-corrosion layer is less than the thickness of the waterproof layer.

14. The composite sheet material according to claim 13, characterized in that: The thickness of the anti-corrosion layer is 0.03 to 1.8 mm.

15. The composite sheet material according to claim 12, characterized in that: The material of the anti-corrosion layer is the same as or different from that of the waterproof layer.

16. A building panel, characterized in that: It comprises a plurality of composite boards as claimed in any one of claims 1 to 15, wherein two adjacent composite boards are connected by a waterproof layer.

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