A composite board
Patent Information
- Application Number
- CN202521897976.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-03
AI Technical Summary
树脂挤出板在生产和使用过程中可能会出现多种缺陷，这些缺陷可能由原料、工艺、设备或环境等因素导致
[0006] To at least partially solve the above problems, this utility model provides a composite board, the composite board comprising:
Smart Images
Figure CN224644445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite material technology, and more specifically to a composite plate. Background Technology
[0002] Resin extruded sheets are sheets made from resin as the main raw material through an extrusion process. Various defects may occur in resin extruded sheets during production and use, which may be caused by factors such as raw materials, processes, equipment, or the environment.
[0003] For example, the mechanical properties of the board are insufficient, and its impact resistance and tensile strength are not up to standard, so it cannot meet the application requirements such as load-bearing and impact resistance; warping and deformation occur during the production and processing, which makes it impossible to lay flat during application and affects the installation accuracy; and the board has insufficient weather resistance and scratch resistance, resulting in problems such as wear and dirt.
[0004] Therefore, a composite board is needed to at least partially solve the above problems. Utility Model Content
[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0006] To at least partially solve the above problems, this utility model provides a composite board, the composite board comprising:
[0007] Co-extruded structural core, the co-extruded structural core comprising:
[0008] Functional core layer
[0009] Two continuous fiber-reinforced thermoplastic resin reinforcing layers are respectively disposed on both sides of the functional core layer; and
[0010] A thermoplastic resin coating layer covers the entire surface of the co-extruded structural core.
[0011] According to the composite board of this application, the entire outer surface is covered with a thermoplastic resin coating layer, which provides all-round protection for the board and eliminates any unprotected sections, thereby improving the board's weather resistance, scratch resistance, and self-cleaning capabilities. Furthermore, the continuous fiber-reinforced thermoplastic resin reinforcing layer further enhances the board's strength and prevents it from becoming brittle.
[0012] Optionally, the functional core layer and the fiber-reinforced thermoplastic resin reinforcing layer are constructed as an integral structure by co-extrusion composite molding;
[0013] The thermoplastic resin coating layer and the co-extruded structural core are formed into an integral structure through thermal bonding.
[0014] Optionally, the functional core layer is constructed as a long fiber reinforced thermoplastic resin core layer.
[0015] Optionally, the length of the long fibers in the long fiber reinforced thermoplastic resin core layer is 6 to 12 mm.
[0016] Optionally, the functional core layer is constructed as a thermoplastic resin foam layer.
[0017] Optionally, the fiber-reinforced thermoplastic resin reinforcing layer comprises a plurality of continuous fiber-reinforced thermoplastic resin layers, wherein the extension directions of the continuous fibers of adjacent continuous fiber-reinforced thermoplastic resin layers are perpendicular to each other.
[0018] Optionally, the thickness of the single-layer continuous fiber-reinforced thermoplastic resin layer is 0.15 to 0.35 mm.
[0019] Optionally, the continuous fiber reinforced thermoplastic resin layer comprises a single layer of continuous fiber reinforced thermoplastic resin prepreg tape.
[0020] Optionally, the single-layer continuous fiber reinforced thermoplastic resin layer includes a plurality of spaced continuous fiber reinforced thermoplastic resin strips, wherein the extension direction of the continuous fibers in the continuous fiber reinforced thermoplastic resin strips is the same as the extension direction of the continuous fiber reinforced thermoplastic resin strips.
[0021] Optionally, the width of the continuous fiber-reinforced thermoplastic resin strip is 5 to 20 mm;
[0022] In the same continuous fiber reinforced thermoplastic resin layer, the distance between adjacent continuous fiber reinforced thermoplastic resin strips is 3 to 50 mm. Attached Figure Description
[0023] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.
[0024] In the attached image:
[0025] Figure 1 This is a cross-sectional schematic diagram of the composite plate according to the first embodiment of this application;
[0026] Figure 2 This is a schematic diagram of a continuous fiber-reinforced thermoplastic resin reinforcing layer according to the first embodiment of this application;
[0027] Figure 3This is a cross-sectional schematic diagram of the composite plate according to the second embodiment of this application;
[0028] Figure 4 A cross-sectional schematic diagram of the composite plate according to the third embodiment of this application; and
[0029] Figure 5 This is a schematic diagram of a continuous fiber-reinforced thermoplastic resin reinforcing layer according to the third embodiment of this application.
[0030] Explanation of reference numerals in the attached figures:
[0031] 100: Composite board
[0032] 110: Co-extruded structural core
[0033] 111: Functional Core Layer
[0034] 112: Long fiber reinforced thermoplastic resin core layer
[0035] 113: Thermoplastic resin foam layer
[0036] 120: Continuous fiber reinforced thermoplastic resin reinforcing layer
[0037] 121: Continuous fiber reinforced thermoplastic resin layer
[0038] 122: Continuous fiber reinforced thermoplastic resin prepreg tape
[0039] 123: Continuous fiber reinforced thermoplastic resin strip
[0040] 130: Thermoplastic resin coating layer Detailed Implementation
[0041] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.
[0043] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.
[0044] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.
[0045] This application provides a composite board 100, with reference to... Figure 1 , Figure 3 and Figure 4 The composite board 100 includes a co-extruded structural core 110 and a thermoplastic resin coating layer 130. The co-extruded structural core 110 includes a functional core layer 111 and two continuous fiber-reinforced thermoplastic resin reinforcing layers 120. The two continuous fiber-reinforced thermoplastic resin reinforcing layers 120 are respectively disposed on both sides of the functional core layer 111. The thermoplastic resin coating layer 130 covers the entire surface of the co-extruded structural core 110.
[0046] According to the composite board 100 of this application, the entire outer surface is covered by a thermoplastic resin coating layer 130, which provides all-round protection for the board and eliminates any unprotected sections, thereby improving the board's weather resistance, scratch resistance, and self-cleaning capabilities. Furthermore, the continuous fiber-reinforced thermoplastic resin reinforcing layer further enhances the board's strength and prevents it from becoming brittle.
[0047] The functional core layer 111 can be constructed as a long fiber reinforced thermoplastic resin core layer 112. Preferably, the long fibers account for 10-50% of the total mass, and the length of the long fibers is 6-12 mm. Because the long fiber reinforced thermoplastic resin core layer 112 forms a three-dimensional network structure with intertwined long fibers, the composite board 100 has high structural strength and is suitable for applications requiring high rigidity and high strength. For example, Figure 1 The first embodiment of this application is shown, wherein the functional core layer 111 is a long fiber reinforced thermoplastic resin core layer 112.
[0048] As another alternative implementation, the functional core layer 111 can be constructed as a thermoplastic resin foam layer 113. In this case, the thermoplastic resin foam layer 113 has a porous structure and low density, resulting in a lighter overall weight of the composite board 100, making it suitable for applications where weight is limited and insulation is required. For example, in Figure 3 The second embodiment shown is the same as Figure 4In the third embodiment shown, the functional core layer 111 is the thermoplastic resin foam layer 113.
[0049] In one implementation, the functional core layer 111 and the fiber-reinforced thermoplastic resin reinforcing layer are constructed as an integral structure through co-extrusion compounding. Since the matrix resin of the functional core layer 111, whether using a long fiber-reinforced thermoplastic resin core layer 112 or a thermoplastic resin foam layer 113, is a thermoplastic resin, and the matrix resin of the fiber-reinforced thermoplastic resin reinforcing layer is also a thermoplastic resin, co-extrusion compounding can form a co-extruded structural core 110 with the functional core layer 111 and the fiber-reinforced thermoplastic resin reinforcing layer as an integral structure. Preferably, the resins of the functional core layer 111 and the fiber-reinforced thermoplastic resin reinforcing layer are selected from compatible resins or the same resin, further improving the integrity of the co-extruded structural core 110.
[0050] In a preferred embodiment, the thermoplastic resin coating layer 130 and the co-extruded structural core 110 are configured to form an integral structure through thermal bonding. The resin of the thermoplastic resin coating layer 130 is also preferably a thermoplastic resin, and is compatible with or identical to the resin of the co-extruded structural core 110, thereby ensuring that the resin matrix of the composite board 100 is compatible with each other, and the composite board 100 forms an integral structure.
[0051] The fiber-reinforced thermoplastic resin reinforcing layer comprises a plurality of continuous fiber-reinforced thermoplastic resin layers 121, wherein the extension directions of the continuous fibers of adjacent continuous fiber-reinforced thermoplastic resin layers 121 are perpendicular to each other. For example, multiple layers of continuous fiber-reinforced thermoplastic resin layers 121 may be stacked in the form of 0°, 90°, 0°, 90°.
[0052] Preferably, the thickness of the single-layer continuous fiber reinforced thermoplastic resin layer 121 is 0.15–0.35 mm. Furthermore, the mass content of continuous fibers in the continuous fiber reinforced thermoplastic resin layer 121 is 40–70%.
[0053] refer to Figure 1 and Figure 2 The fiber-reinforced thermoplastic resin reinforcing layer in the first embodiment is... Figure 2 The structure shown has the continuous fiber-reinforced thermoplastic resin layer 121 constructed as a single-layer continuous fiber-reinforced thermoplastic resin prepreg tape 122. As an optional embodiment, Figure 3 The fiber-reinforced thermoplastic resin reinforcing layer in the second embodiment can also be selected. Figure 2 The structure shown.
[0054] As another alternative implementation method, see reference Figure 4 and Figure 5The single-layer continuous fiber reinforced thermoplastic resin layer 121 includes a plurality of spaced-apart continuous fiber reinforced thermoplastic resin strips 123, wherein the extension direction of the continuous fibers in the continuous fiber reinforced thermoplastic resin strips 123 is the same as the extension direction of the continuous fiber reinforced thermoplastic resin strips 123. The width of the continuous fiber reinforced thermoplastic resin strips 123 is 5–20 mm, and the distance between adjacent continuous fiber reinforced thermoplastic resin strips 123 in the same continuous fiber reinforced thermoplastic resin layer 121 is 3–50 mm. This structural form allows the thermoplastic resin coating layer 130 to be melted into the pores between the continuous fiber reinforced thermoplastic resin strips 123, enabling the layers to intertwine and further improving the overall integrity of the board.
[0055] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.
[0056] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.
Claims
1. A composite board, characterized by, The composite board includes: Co-extruded structural core, the co-extruded structural core comprising: Functional core layer Two continuous fiber-reinforced thermoplastic resin reinforcing layers are respectively disposed on both sides of the functional core layer; and A thermoplastic resin coating layer covers the entire surface of the co-extruded structural core.
2. The composite board according to claim 1, characterized in that, The functional core layer and the fiber-reinforced thermoplastic resin reinforcing layer are constructed as an integral structure through co-extrusion composite molding; The thermoplastic resin coating layer and the co-extruded structural core are formed into an integral structure through thermal bonding.
3. The composite board according to claim 1, characterized in that, The functional core layer is constructed as a long fiber reinforced thermoplastic resin core layer.
4. The composite board according to claim 3, characterized in that, The length of the long fibers in the long fiber reinforced thermoplastic resin core layer is 6-12 mm.
5. The composite board according to claim 1, characterized in that, The functional core layer is constructed as a thermoplastic resin foam layer.
6. The composite board according to claim 1, characterized in that, The fiber-reinforced thermoplastic resin reinforcing layer comprises a plurality of continuous fiber-reinforced thermoplastic resin layers, wherein the extension directions of the continuous fibers of adjacent continuous fiber-reinforced thermoplastic resin layers are perpendicular to each other.
7. The composite board according to claim 6, characterized in that, The thickness of the continuous fiber reinforced thermoplastic resin layer is 0.15 to 0.35 mm.
8. The composite board according to claim 6, characterized in that, The continuous fiber reinforced thermoplastic resin layer comprises a single layer of continuous fiber reinforced thermoplastic resin prepreg tape.
9. The composite board according to claim 6, characterized in that, The continuous fiber reinforced thermoplastic resin layer includes a plurality of spaced continuous fiber reinforced thermoplastic resin strips, wherein the extension direction of the continuous fibers in the continuous fiber reinforced thermoplastic resin strips is the same as the extension direction of the continuous fiber reinforced thermoplastic resin strips.
10. The composite board according to claim 9, characterized in that, The width of the continuous fiber-reinforced thermoplastic resin strip is 5-20 mm; In the same continuous fiber reinforced thermoplastic resin layer, the distance between adjacent continuous fiber reinforced thermoplastic resin strips is 3 to 50 mm.