Flame-retardant fiberboard with flame-retardant structure

Abstract

The utility model relates to a fiberboard, and provides a flame-retardant fiberboard with a flame-retardant structure, which comprises a pair of oppositely arranged surface layers and a plurality of flame-retardant layers arranged between the surface layers in a stacked manner, the flame-retardant layer comprises a bottom plate, a plurality of grooves formed in the side wall of the bottom plate, and flame retardants arranged in the grooves; the area, not provided with the groove, of the bottom plate is a blank area. The adjacent flame-retardant layers are connected through an adhesive; the grooves and the blank areas are distributed in a staggered mode in the thickness direction. The flame-retardant fiberboard with the flame-retardant structure has a certain flame-retardant effect on the basis of keeping the original structural strength of the fiberboard.

Description

Technical Field

[0001] The utility model relates to the technical field of fiberboards, in particular to a flame retardant fiberboard with a flame retardant structure. Background Art

[0002] Fiberboard refers to a man-made board made of wood cellulose fibers interwoven and made using their inherent adhesive properties. Adhesives and / or additives may be applied during the manufacturing process. Fiberboard, also known as density board, is a man-made board made of wood fiber or other plant fiber as raw materials, with urea-formaldehyde resin or other suitable adhesives applied.

[0003] From the manufacturing process of fiberboard, we can see that its main raw materials are mainly derived from dry plant fibers, and plant fibers themselves are flammable, so fiberboard itself does not have flame retardant properties. In order to make the fiberboard itself have flame retardant properties, a certain amount of flame retardant (organic flame retardant or inorganic flame retardant, etc.) is usually mixed inside it, and the fiberboard is given a certain flame retardant effect through the flame retardant. However, there are certain problems with the addition of flame retardants. For example, adding too much flame retardant can significantly improve the flame retardant performance, but this will not only increase the cost, but also have a great impact on the overall strength of the fiberboard, affecting the original toughness, rigidity and other parameters of the fiberboard, and adding too little flame retardant does not have reliable flame retardant performance. Therefore, it is possible to design a fiberboard that has a certain flame retardant effect and can maintain its original structural strength. Utility Model Content

[0004] The utility model aims to provide a flame retardant fiberboard with a flame retardant structure, which can have a certain flame retardant effect on the basis of maintaining the original structural strength of the fiberboard.

[0005] The embodiments of the utility model are realized through the following technical scheme: the flame-retardant fiberboard with a flame-retardant structure of the utility model comprises a pair of oppositely arranged surface layers, and a plurality of flame-retardant layers stacked between the surface layers; the flame-retardant layer comprises a bottom plate, a plurality of grooves opened on the side walls of the bottom plate, and a flame retardant arranged in the grooves; the area of ​​the bottom plate where no grooves are opened is a blank area; adjacent flame-retardant layers are connected by an adhesive; along the thickness direction, the grooves and the blank areas are staggered.

[0006] Furthermore, the grooves are distributed in a matrix; the distance between the edges of adjacent grooves is equal to the width of the grooves.

[0007] Furthermore, connecting channels are provided between adjacent grooves, and flame retardant is provided in the connecting channels.

[0008] Furthermore, the flame retardant layer also includes a reinforcing mesh, which is arranged in the groove and the connecting channel; and the reinforcing mesh is embedded in the flame retardant.

[0009] Furthermore, the reinforcing mesh is made of metal or polymer material.

[0010] Furthermore, the flame retardant layer also includes a cover plate attached to the side of the bottom plate where the groove is formed, the bottom plate and the cover plate are made of the same material, and the bottom plate and the cover plate are connected by an adhesive.

[0011] Furthermore, the surface layer and the bottom plate are both made of plant fibers.

[0012] Furthermore, the flame retardant is one of an organic flame retardant, an inorganic flame retardant, and a halogen flame retardant.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: the flame-retardant fiberboard with a flame-retardant structure of the utility model prevents the spread of fire by arranging a flame-retardant layer between the surface layers, wherein a plurality of stacked flame-retardant layers are arranged to have a better flame-retardant effect, a groove is opened on the bottom plate, and a flame retardant is placed in the groove, so that the flame-retardant layer not only has a certain mechanical strength, but also has a certain flame-retardant effect, and after the flame-retardant layers are staggered, each blank area is provided with a flame-retardant layer in all directions, which is equivalent to that after one of the blank areas starts to burn, when it has a tendency to spread, all directions of its spread are flame retardant, so that the flame-retardant effect can be effectively achieved and a certain structural strength can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of a flame-retardant fiberboard with a flame-retardant structure provided by an embodiment of the utility model after unfolding;

[0016] Figure 2 A schematic structural diagram of the bottom plate portion provided in an embodiment of the utility model.

[0017] Icon: 1-surface layer, 2-base plate, 3-covering plate, 4-groove, 5-blank area, 6-connecting channel, 7-reinforcement mesh. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 2As shown, the flame-retardant fiberboard with a flame-retardant structure of this embodiment includes a pair of oppositely arranged surface layers 1, and a plurality of flame-retardant layers stacked between the surface layers 1; the flame-retardant layer includes a bottom plate 2, a plurality of grooves 4 provided on the side wall of the bottom plate 2, and a flame retardant provided in the groove 4; the area of ​​the bottom plate 2 without the groove 4 is a blank area 5; the adjacent flame-retardant layers are connected by an adhesive; and the grooves 4 and the blank areas 5 are staggered in the thickness direction. Specifically, the flame-retardant layer is provided between the surface layers 1 to prevent the spread of fire, wherein the plurality of stacked flame-retardant layers can play a better flame-retardant effect, the grooves 4 are provided on the bottom plate 2, and the flame retardant is placed in the grooves 4, so that the flame-retardant layer not only has a certain mechanical strength, but also has a certain flame-retardant effect, and after the flame-retardant layers are staggered, each blank area 5 is provided with a flame-retardant layer in each direction, which is equivalent to that after one of the blank areas 5 starts to burn, when it has a tendency to spread, all directions of its spread are flame retardants, so that the flame-retardant effect can be effectively achieved, and a certain structural strength can also be maintained.

[0025] The grooves 4 in this embodiment are distributed in a matrix; the distance between the edges of adjacent grooves 4 is equal to the width of the groove 4 .

[0026] In this embodiment, connecting channels 6 are provided between adjacent grooves 4, and flame retardants are provided in the connecting channels 6. Specifically, the flame retardants are distributed in a mesh structure, which covers a wider range and has the best flame retardant effect.

[0027] The flame retardant layer in this embodiment further includes a reinforcing mesh 7, which is arranged in the groove 4 and the connecting channel 6; the reinforcing mesh 7 is embedded in the flame retardant. The reinforcing mesh 7 is made of metal or polymer material. Specifically, the reinforcing mesh 7 can make up for the lack of structural strength of the flame retardant layer material to a certain extent.

[0028] The flame retardant layer in this embodiment also includes a cover plate 3 attached to the side of the bottom plate 2 where the groove 4 is formed. The bottom plate 2 and the cover plate 3 are made of the same material and are connected to each other by an adhesive. Specifically, the cover plate 3 can better seal the flame retardant in the bottom plate 2.

[0029] The surface layer 1 and the bottom plate 2 in this embodiment are made of plant fibers, such as straw, sawdust, bamboo fibers, etc., without limitation.

[0030] The flame retardant in this embodiment is one of an organic flame retardant, an inorganic flame retardant, and a halogen flame retardant. Specifically, the flame retardant can be some flame retardants represented by common bromine series, phosphorus nitrogen series, nitrogen series, red phosphorus and compounds, antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon series and other flame retardant systems, without specific limitation.

[0031] In summary, the flame-retardant fiberboard with a flame-retardant structure of the present embodiment prevents the spread of fire by arranging a flame-retardant layer between the surface layers 1, wherein a plurality of stacked flame-retardant layers are arranged to have a better flame-retardant effect, a groove 4 is opened on the bottom plate 2, and a flame retardant is placed in the groove 4, so that the flame-retardant layer not only has a certain mechanical strength, but also has a certain flame-retardant effect, and after the flame-retardant layers are staggered, each blank area 5 is provided with a flame-retardant layer in all directions, which is equivalent to when one of the blank areas 5 starts to burn, when it has a tendency to spread, all directions of its spread are flame retardant, so that the flame-retardant effect can be effectively achieved and a certain structural strength can be maintained.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flame retardant fiberboard with a flame retardant structure, characterized in that: It comprises a pair of surface layers (1) arranged opposite to each other, and a plurality of flame retardant layers stacked and arranged between the surface layers (1); The flame retardant layer comprises a base plate (2), a plurality of grooves (4) provided on the side wall of the base plate (2), and a flame retardant provided in the grooves (4); the area of ​​the base plate (2) where no grooves (4) are provided is a blank area (5); adjacent flame retardant layers are connected by an adhesive; Along the thickness direction, the grooves (4) and the blank areas (5) are distributed alternately.

2. The flame-retardant fiberboard with a flame-retardant structure according to claim 1, characterized in that: The grooves (4) are distributed in a matrix; the distance between the edges of adjacent grooves (4) is equal to the width of the groove (4).

3. The flame-retardant fiberboard with a flame-retardant structure according to claim 1, characterized in that: A connecting channel (6) is provided between adjacent grooves (4), and a flame retardant is provided in the connecting channel (6).

4. The flame retardant fiberboard with a flame retardant structure according to claim 3, characterized in that: The flame retardant layer further comprises a reinforcing net (7), wherein the reinforcing net (7) is arranged in the groove (4) and the connecting channel (6); The reinforcing net (7) is embedded in the flame retardant.

5. The flame retardant fiberboard with a flame retardant structure according to claim 4, characterized in that: The reinforcing net (7) is made of metal or polymer material.

6. The flame retardant fiberboard with a flame retardant structure according to claim 1, characterized in that: The flame retardant layer further comprises a covering plate (3) attached to the side of the bottom plate (2) where the groove (4) is formed. The bottom plate (2) and the covering plate (3) are made of the same material, and the bottom plate (2) and the covering plate (3) are connected by an adhesive.

7. The flame retardant fiberboard with a flame retardant structure according to claim 6, characterized in that: The surface layer (1) and the bottom plate (2) are both made of plant fibers.

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