Low-temperature hot-pressing environment-friendly multi-layer board

Abstract

The utility model is used to environmental protection board material technical field, disclose a kind of low-temperature hot-pressing environmental protection multilayer board, including first base layer and second base layer, the side outer surface of first base layer towards second base layer is fixedly provided with support block, and the side outer surface cementation of second base layer towards first base layer is installed with limit plate, and the side outer surface of limit plate towards first base layer is equipped with limit cavity, it is provided with limit frame between limit plate and first base layer.The low-temperature hot-pressing environmental protection multilayer board, first base layer is installed and cementation fixed by the limit cavity of support block and limit plate interlocking, limit frame is simultaneously set between limit plate and first base layer, and this unique structure design greatly enhances the connecting strength between each layer of multilayer board, compared with traditional single connection mode, effectively avoid the delamination phenomenon of multilayer board when subjected to external force, greatly improve the overall performance and service life of multilayer board.

Description

Technical Field

[0001] This utility model relates to the field of environmentally friendly board technology, specifically a low-temperature hot-pressed environmentally friendly multilayer board. Background Technology

[0002] In modern society, the building decoration and furniture manufacturing industries are booming. As an indispensable and important board material, plywood has a wide range of applications. In the field of building decoration, whether it is interior wall decorative panels, ceiling base panels, or stair treads, plywood has become a common choice for designers and construction teams due to its good processing performance and relatively moderate cost. In furniture manufacturing, from wardrobe and cabinet body panels to table and chair panels, plywood plays a key role. It can not only meet the structural strength requirements of furniture, but also achieve diverse appearance effects through veneer, coating and other processes, which can meet the needs of different styles of home design. Traditional multi-layer boards are mostly manufactured using a high-temperature hot-pressing process. In this process, multiple layers of wood veneers and adhesives are pressed together under high temperature and pressure to form a single unit. However, this process has many drawbacks. From an energy consumption perspective, high-temperature hot pressing requires a large amount of electrical or thermal energy to maintain the high-temperature environment required for processing, resulting in high production costs and exacerbating energy shortages. From an environmental perspective, the adhesives used in the high-temperature hot-pressing process often contain harmful chemical components such as formaldehyde, which release a large amount of harmful gases during production. These gases not only pose a serious threat to the health of workers in the production workshop but also continue to be slowly released during the subsequent use of the multi-layer boards, polluting the indoor air environment and harming the health of residents. With the increasing awareness of environmental protection and the continuous improvement of national environmental standards, this high-energy-consuming and high-polluting production process is gradually becoming unable to meet the needs of industry development. Environmentally friendly multi-layer boards prepared by low-temperature hot pressing have emerged and are gradually gaining attention in the industry. Although low-temperature hot-pressed environmentally friendly multilayer boards have improved the environmental protection and energy consumption issues of traditional multilayer boards to some extent, existing products still have significant shortcomings in terms of structural design and functionality. In terms of structural design, the connection methods between the layers of existing low-temperature hot-pressed environmentally friendly multilayer boards are relatively simple, usually relying solely on adhesives. This connection method has limited strength, and when the multilayer board is subjected to external impacts, long-term vibrations, or changes in temperature and humidity, delamination is highly likely to occur between the layers. For example, during furniture transportation, even slight collisions can damage the multilayer board structure, causing delamination and affecting the overall quality and lifespan of the furniture. In building decoration, delamination caused by changes in environmental temperature and humidity not only damages the decorative effect but may also pose safety hazards. In terms of functionality, current low-temperature hot-pressed environmentally friendly multilayer boards on the market often only possess a single functional characteristic. Some products focus on moisture resistance, using simple moisture-proofing treatments to cope with humid environments, but perform poorly in terms of fire resistance and antibacterial properties. Conversely, some multi-layer boards emphasizing fire resistance struggle to simultaneously meet the demands for moisture resistance and antibacterial properties. However, the modern building decoration and furniture manufacturing industries have increasingly higher requirements for boards, demanding not only good structural stability but also multiple functions such as moisture resistance, fire resistance, and antibacterial properties. For example, in the decoration of damp environments like kitchens and bathrooms, boards need to possess moisture resistance, antibacterial properties, and a certain degree of fire resistance. In the furniture manufacturing of public buildings and residential homes, fire resistance and antibacterial functions have also become crucial requirements for ensuring people's lives, property safety, and health. Therefore, developing a structurally stable, multi-functional, low-temperature hot-pressed, environmentally friendly multi-layer board is urgently needed, and this is of great significance for promoting the sustainable development of the building decoration and furniture manufacturing industries. Utility Model Content

[0003] The purpose of this utility model is to provide a low-temperature hot-pressed environmentally friendly multilayer board to solve the problems mentioned in the background art, such as insufficient connection strength between layers of multilayer boards leading to easy delamination, and limited functionality making it difficult to meet comprehensive needs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature hot-pressed environmentally friendly multilayer board, comprising a first base layer and a second base layer, wherein a support block is fixedly provided on the outer surface of the first base layer facing the second base layer, and a limiting plate is glued and installed on the outer surface of the second base layer facing the first base layer, wherein a limiting cavity is formed on the outer surface of the limiting plate facing the first base layer, and a limiting frame is provided between the limiting plate and the first base layer; A moisture-proof layer is provided on the lower surface of the first base layer; The upper surface of the second base layer is provided with a fireproof layer, and the upper surface of the fireproof layer is provided with an antibacterial layer.

[0005] Preferably, the support blocks are evenly distributed on the outer surface of the first base layer, and the support blocks are designed as regular square truncated pyramids with a smaller top and a larger bottom. The first base layer is installed by engaging the support blocks with the limiting cavity, and the support blocks and the limiting cavity are glued together for fixation.

[0006] By adopting the above technical solution, the connection strength between the first base layer and the second base layer is effectively enhanced through the engagement and bonding of the support block and the limiting cavity, and with the assistance of the limiting frame. This makes the multilayer board less prone to delamination when subjected to external forces, thus ensuring the overall structural stability.

[0007] Preferably, the moisture-proof layer is a paper layer impregnated with melamine resin, and the moisture-proof layer provides moisture protection to the multilayer board after being bonded to the first base layer.

[0008] Using the above technical solution, the paper layer impregnated with melamine resin serves as a moisture-proof layer. Due to its hydrophobicity and dense structure, it can effectively block the penetration of external moisture, prevent the first base layer and multilayer board from deforming and becoming moldy due to moisture, and extend the service life of the multilayer board.

[0009] Preferably, the fireproof layer is a resin layer with added inorganic flame retardant. The inorganic flame retardant in the fireproof layer is evenly dispersed to form a dense flame-retardant structure, which effectively improves the fire resistance of the multilayer board.

[0010] Using the above technical solution, the resin layer with added inorganic flame retardant forms a fireproof layer. When exposed to open flame or high temperature, the dense flame-retardant structure formed by the inorganic flame retardant can insulate against heat and oxygen, prevent heat transfer, and inhibit the generation of combustible gases, thereby significantly improving the fire resistance of the multilayer board.

[0011] Preferably, the antibacterial layer is a cured resin coating containing an antibacterial agent, and the surface of the antibacterial layer coating is smooth to ensure that the antibacterial agent can play an effective role without affecting the appearance of the multilayer board.

[0012] Using the above technical solution, the cured resin coating containing antibacterial agent serves as an antibacterial layer. The smooth surface reduces bacterial adhesion, while the antibacterial agent can destroy the bacterial structure or inhibit its growth, effectively inhibiting the growth of common bacteria and meeting modern hygiene requirements for boards.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This low-temperature hot-pressed environmentally friendly multilayer board: 1. The first base layer is installed and glued to the limiting cavity of the limiting plate by the support block. At the same time, a limiting frame is set between the limiting plate and the first base layer. This unique structural design greatly enhances the connection strength between the layers of the multilayer board. Compared with the traditional single connection method, it effectively avoids the delamination phenomenon of the multilayer board when subjected to external force, and greatly improves the overall performance and service life of the multilayer board. 2. In terms of functionality, by setting up a moisture-proof layer, a fire-resistant layer, and an antibacterial layer, the multi-layer board simultaneously possesses multiple functions such as moisture-proof, fire-resistant, and antibacterial properties. The moisture-proof layer uses a paper layer impregnated with melamine resin, which can effectively isolate moisture. The fire-resistant layer adds inorganic flame retardants to form a dense flame-retardant structure, improving fire resistance. The antibacterial layer contains antibacterial agents and has a smooth coating surface, ensuring that the antibacterial agents can effectively play their role. This multi-layer board meets the comprehensive needs of modern building decoration and furniture manufacturing for multiple functions of the board material. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection cross-section of the first base layer, the second base layer, the support block, and the limiting plate of this utility model; Figure 3 This is a three-dimensional structural diagram of the first base layer, the limiting plate, and the limiting frame of this utility model in a connected and disassembled state; Figure 4 This is a three-dimensional structural diagram of the overall exploded state of this utility model; Figure 5 This is a three-dimensional structural diagram of the connection between the first base layer and the support block of this utility model; Figure 6 This is a three-dimensional structural diagram of the connection between the second base layer, the limiting plate, and the limiting cavity of this utility model.

[0015] In the diagram: 1. First base layer; 2. Second base layer; 3. Support block; 4. Limiting plate; 5. Limiting cavity; 6. Limiting frame; 7. Moisture-proof layer; 8. Fireproof layer; 9. Antibacterial layer. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-6 This utility model provides a technical solution: a low-temperature hot-pressed environmentally friendly multilayer board.

[0018] Example 1: This example discloses: a first base layer 1 and a second base layer 2. A support block 3 is fixedly provided on the outer surface of the first base layer 1 facing the second base layer 2, and a limiting plate 4 is glued and installed on the outer surface of the second base layer 2 facing the first base layer 1. A limiting cavity 5 is opened on the outer surface of the limiting plate 4 facing the first base layer 1, and a limiting frame 6 is provided between the limiting plate 4 and the first base layer 1. The support blocks 3 are evenly distributed on the outer surface of the first base layer 1. The support blocks 3 are designed as a regular square truncated pyramid with a smaller top and a larger bottom. The first base layer 1 is installed by engaging the support blocks 3 with the limiting cavity 5. The support blocks 3 and the limiting cavity 5 are glued and fixed together. The support block 3 on one side of the outer surface of the first base layer 1 is designed as a regular square truncated pyramid. Its shape, which is smaller at the top and larger at the bottom, facilitates precise engagement with the limiting cavity 5 of the upper limit plate 4 of the second base layer 2. When the first base layer 1 and the second base layer 2 are assembled, the support block 3 is inserted into the limiting cavity 5, and a mechanical interlocking structure is formed between the two, which restricts the relative displacement of the first base layer 1 and the second base layer 2 in the horizontal direction. At the same time, the support block 3 and the limiting cavity 5 are fixed by adhesive bonding, which further enhances the connection strength, making it difficult for the layers of the multilayer board to separate when subjected to external forces such as compression or collision, thus ensuring the stability of the overall structure of the multilayer board. In addition, the limiting frame 6 is set between the limiting plate 4 and the first base layer 1, which plays an auxiliary positioning and reinforcement role, further restricting the misalignment of the first base layer 1 and the second base layer 2 from the side, and improving the resistance of the multilayer board to external forces.

[0019] Example 2: This example is based on Example 1: A moisture-proof layer 7 is provided on the lower surface of the first base layer 1; The upper surface of the second base layer 2 is provided with a fireproof layer 8, and the upper surface of the fireproof layer 8 is provided with an antibacterial layer 9. The moisture-proof layer 7 is a paper layer impregnated with melamine resin, and after the moisture-proof layer 7 is bonded to the first base layer 1, it provides moisture protection for the multilayer board. Fireproof layer 8 is a resin layer with added inorganic flame retardant. The inorganic flame retardant in fireproof layer 8 is evenly dispersed to form a dense flame retardant structure, which effectively improves the fire resistance of multilayer boards. The antibacterial layer 9 is a cured resin coating containing antibacterial agents. The surface of the antibacterial layer 9 coating is smooth to ensure that the antibacterial agents can play an effective role without affecting the appearance of the multilayer board. The moisture-proof layer 7 on the lower surface of the first base layer 1 is a paper layer impregnated with melamine resin. Melamine resin has good hydrophobicity. When external moisture comes into contact with the multilayer board, the dense structure and hydrophobic properties of the moisture-proof layer 7 can effectively block the penetration of moisture, preventing the first base layer 1 and the entire multilayer board from deforming or becoming moldy due to moisture, thereby extending the service life of the multilayer board. The fireproof layer 8 on the upper surface of the second base layer 2 contains inorganic flame retardants. These flame retardants are evenly dispersed in the resin layer to form a dense flame-retardant structure. When the multilayer board is exposed to open flame or high temperature, the inorganic flame retardants can form a barrier on the surface of the board. The heat-insulating and oxygen-barrier protective layer prevents heat from being transferred to the interior of the board and inhibits the generation of flammable gases, thereby delaying or preventing the spread of fire and improving the fire resistance of the plywood. The antibacterial layer 9, as a cured resin coating containing antibacterial agents, has a smooth surface that reduces the adhesion points of bacteria. On the other hand, the antibacterial agents can interact with the bacteria they come into contact with, destroying the cell structure of the bacteria or inhibiting their growth and reproduction. This effectively inhibits the growth of common bacteria such as Escherichia coli and Staphylococcus aureus on the surface of the plywood, ensuring that the plywood remains hygienic and clean during use, and meeting the hygiene requirements of modern building decoration and furniture manufacturing for boards.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature hot-pressed environmentally friendly multilayer board, comprising a first base layer (1) and a second base layer (2), characterized in that: A support block (3) is fixedly installed on the outer surface of the first base layer (1) facing the second base layer (2), and a limiting plate (4) is glued to the outer surface of the second base layer (2) facing the first base layer (1), and a limiting cavity (5) is opened on the outer surface of the limiting plate (4) facing the first base layer (1), and a limiting frame (6) is provided between the limiting plate (4) and the first base layer (1).

2. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 1, characterized in that: A moisture-proof layer (7) is provided on the lower surface of the first base layer (1).

3. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 1, characterized in that: The upper surface of the second base layer (2) is provided with a fireproof layer (8), and the upper surface of the fireproof layer (8) is provided with an antibacterial layer (9).

4. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 1, characterized in that: The support block (3) is evenly distributed on the outer surface of the first base layer (1), and the support block (3) is a regular square truncated pyramid with a smaller top and a larger bottom. The first base layer (1) is installed by engaging the support block (3) with the limiting cavity (5), and the support block (3) and the limiting cavity (5) are glued and fixed together.

5. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 2, characterized in that: The moisture-proof layer (7) is a paper layer impregnated with melamine resin, and the moisture-proof layer (7) is bonded to the first base layer (1) to provide moisture protection for the multilayer board.

6. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 3, characterized in that: The fireproof layer (8) is a resin layer with added inorganic flame retardant. The inorganic flame retardant in the fireproof layer (8) is evenly dispersed to form a dense flame retardant structure, which effectively improves the fire resistance of the multilayer board.

7. The low-temperature hot-pressed environmentally friendly multilayer board according to claim 3, characterized in that: The antibacterial layer (9) is a cured resin coating containing antibacterial agents. The surface of the antibacterial layer (9) is smooth to ensure that the antibacterial agents can play an effective role without affecting the appearance of the multilayer board.

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