CN217345904U

CN217345904U - Flame-retardant PVC plywood

Info

Publication number: CN217345904U
Application number: CN202122432000.7U
Authority: CN
Inventors: 蔡爱平
Original assignee: Suqian Yifeng Wood Industry Co ltd
Current assignee: Suqian Yifeng Wood Industry Co ltd
Priority date: 2021-10-10
Filing date: 2021-10-10
Publication date: 2022-09-02
Anticipated expiration: 2031-10-10

Abstract

The utility model discloses a flame-retardant PVC plywood, which belongs to the field of plywood and is used for plywood, and comprises a carbonized wood board layer, wherein the carbonized wood board layer is connected with a waterproof layer through an adhesive, the waterproof layer is bonded on a PVC layer through the adhesive, the PVC layer is connected on a flame-retardant layer through the adhesive, the flame-retardant layer is positioned on a core board, the core board is composed of a core board framework consisting of polygonal frames which are connected with each other, and the flame-retardant layer extends into the core board through the core board framework; blind holes with a polygonal structure are distributed on the core plate framework, and bamboo veneers impregnated with flame retardants are filled in the blind holes; and the flame-retardant layers on the two sides of the core plate are provided with silica gel layers at the connecting positions in the core plate framework, and the silica gel layers are respectively bonded with the flame-retardant layers on the corresponding sides through adhesives. In view of above-mentioned technical scheme, the utility model discloses can realize the fire behavior of plywood, can guarantee the intensity of plywood self moreover when having fire behavior.

Description

Flame-retardant PVC plywood

Technical Field

This application belongs to the plywood field, and specifically speaking especially relates to a fire-retardant type PVC plywood.

Background

The plywood is one of the common materials of furniture, one of three large boards of artificial board, the plywood is a three-layer or multi-layer plate material made by rotary cutting wood segments into veneers or slicing wood cubes into veneers and gluing the veneers with adhesive, usually using odd number of layers of veneers and making the fiber directions of adjacent layers of veneers mutually perpendicular to glue, making the plywood into a single-sided or double-sided substrate by printing and etching, putting a plurality of layers of veneers into specified layers, heating, pressurizing and gluing to form the multi-layer plywood, the single wood board is easy to be ignited, if a fire disaster occurs, the fire behavior will be increased, which is not beneficial to production and life.

Disclosure of Invention

An object of this application provides a fire-retardant type PVC plywood, its fire behavior that can realize the plywood can guarantee the intensity of plywood self when having fire behavior moreover.

In order to achieve the purpose, the method is realized by the following technical scheme:

the flame-retardant PVC plywood comprises a carbonized wood board layer, wherein the carbonized wood board layer is connected with a waterproof layer through an adhesive, the waterproof layer is bonded on a PVC layer through the adhesive, the PVC layer is connected on a flame-retardant layer through the adhesive, the flame-retardant layer is positioned on a core plate, the core plate consists of a core plate framework consisting of polygonal frames which are connected with each other, and the flame-retardant layer extends into the core plate through the core plate framework; blind holes with a polygonal structure are distributed on the core plate framework, and bamboo veneers impregnated with fire retardants are filled in the blind holes; the flame-retardant layers on the two sides of the core plate are provided with silica gel layers at the connecting positions in the core plate framework, and the silica gel layers are respectively bonded with the flame-retardant layers on the corresponding sides through adhesives;

the adhesive is an amino resin flame-retardant adhesive, and the flame-retardant layer is a magnesite gelation flame-retardant layer.

Further, in the utility model, PVC layer and fire-retardant layer between be provided with metal mesh layer.

Further say, the utility model discloses in the surface of carbomorphism plank layer be provided with chlorinated paraffin flame retardant coating.

Furthermore, the core plate framework of the utility model is made of high-density fiberboard body infiltrated with flame retardant.

Compared with the prior art, the beneficial effects of this application are:

the utility model discloses a redesign to plywood structure and choose for use suitable flame retardant material, effectively guaranteed the stability and the fire behavior of plywood structure, and guaranteed inside fire resistive material's stability through the structure of design waterproof layer.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention.

Fig. 2 is a second schematic structural diagram of the present invention.

In the figure: 1. carbonizing the wood board layer; 2. a waterproof layer; 3. a PVC layer; 4. a flame retardant layer; 5. a core board; 6. a metal mesh layer; 7. A core plate framework; 8. and (4) blind holes.

Detailed Description

The technical solutions described in the present application are further described below with reference to the accompanying drawings and embodiments. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope of the present invention, and are only for facilitating the better understanding of the technical solutions described in the specification by those skilled in the art.

In the description of the following paragraphs, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances in combination with common general knowledge in the art, design specifications, standard documents, and the like.

Example 1

The flame-retardant PVC plywood comprises a carbonized wood board layer 1, wherein the carbonized wood board layer 1 is connected with a waterproof layer 2 through an adhesive, the waterproof layer 2 is bonded on a PVC layer 3 through an adhesive, the PVC layer 3 is connected on a flame-retardant layer 4 through the adhesive, the flame-retardant layer 4 is positioned on a core board 5, the core board 5 is composed of a core board framework 7 consisting of polygonal frames which are connected with each other, and the flame-retardant layer 4 extends into the core board 5 through the core board framework 7; blind holes 8 with a polygonal structure are distributed on the core plate framework 7, and bamboo veneers impregnated with flame retardants are filled in the blind holes 8; the depth of the blind hole 8 is 1/2 of the thickness of the core plate framework 7. Through holes penetrating through the core plate framework 7 can be processed on the side surface of the core plate framework 7, so that the silica gel layer can penetrate through the core plate framework 7 through the through holes on the core plate framework 7 to form a whole. And the flame-retardant layers 4 on the two sides of the core plate 5 are provided with silica gel layers at the connecting positions in the core plate framework 7, and the silica gel layers are respectively bonded with the flame-retardant layers 4 on the corresponding sides through adhesives.

Example 2

The adhesive is an amino resin flame-retardant adhesive; a metal mesh layer 6 is arranged between the PVC layer 3 and the flame-retardant layer 4; the flame-retardant layer 4 is a magnesite gelling flame-retardant layer; the outer surface of the carbonized wood board layer 1 is provided with a chlorinated paraffin fireproof layer; the core board framework 7 is made of a high-density fiberboard body impregnated with a flame retardant. The structure and connection relationship of the rest parts are the same as those described in any one of the foregoing embodiments, and are not described herein again to avoid tedious text.

On the basis of the above-mentioned embodiments, the following paragraphs are used to continue detailed description of the technical features involved therein and the functions and actions of the technical features in the technical solutions, so as to help those skilled in the art fully understand the technical solutions and reproduce the technical solutions.

The utility model discloses in, core 5 constitute by core skeleton 7 and be located the blind hole 8 on the core skeleton 7, core skeleton 7 link to each other by a plurality of polygon structure frames and form, its effect lies in connecting the fire-retardant layer 4 on two sides for fire-retardant layer 4 can be connected as an organic wholely through core 5. The blind holes 8 are internally provided with bamboo veneers which need to be impregnated with flame retardants to ensure the flame retardant property of the bamboo veneers. The bamboo veneer has the functions of adsorbing peculiar smell in the plywood and ensuring the stability of the plywood.

The utility model discloses in, fire-retardant layer 4 adopt magnesite to glue fire-retardant layer, the main composition on magnesite glues fire-retardant layer is magnesium chloride, magnesium oxide, still adds vegetable fibre, glass fiber, modifier, other mineral extracts such as sawdust or peanut shell powder. The utility model discloses in, fire-retardant layer 4 inside need adopt glass fiber or carbon fiber to weave into netted substrate to compound all the other materials on it. Since most of the flame-retardant layer 4 is located inside the core 5, the stability of the flame-retardant layer 4 can be ensured by the core 5. The mesh-like substrate woven of glass fibers or carbon fibers described in this paragraph should be located on the surface of the core 5.

The utility model discloses in, fire-retardant layer 4 and PVC layer 3 between be provided with metal mesh layer 6, above-mentioned two-layer structure can be connected to metal mesh layer 6 to realize the fixed of above-mentioned two-layer structure together through the adhesive. Be provided with waterproof layer 2 between PVC layer 3 and the carbomorphism plank layer 1, waterproof layer 2 can prevent that external hydrone from entering into the inside of PVC plywood, influences the structural strength of PVC plywood and fire-proof material's performance.

The utility model discloses in, the carbomorphism plank layer 1 of chooseing for use also can play certain waterproof, humidity resistance, and the plank through the carbomorphism can also reduce the internal moisture content of plank moreover, guarantees the stability of PVC plywood. And simultaneously, the utility model discloses can be provided with the glass fiber layer of taking decorative pattern at the surface of carbomorphism wood sheet layer 1.

The utility model discloses in, in order to realize the fire behavior of plywood, can adopt the fire-retardant gluing agent of amino resin as the adhesive of connecting each layer body, except can realizing connection stability, can also play certain fire behavior.

Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The utility model provides a fire-retardant type PVC plywood, includes carbomorphism wooden lamella (1), its characterized in that: the core board is characterized in that the carbonized wood board layer (1) is connected with a waterproof layer (2) through an adhesive, the waterproof layer (2) is bonded on the PVC layer (3) through an adhesive, the PVC layer (3) is connected on the flame-retardant layer (4) through the adhesive, the flame-retardant layer (4) is positioned on the core board (5), the core board (5) is composed of a core board framework (7) formed by polygonal frames which are connected with each other, and the flame-retardant layer (4) extends into the core board (5) through the core board framework (7); blind holes (8) with a polygonal structure are distributed on the core plate framework (7), and bamboo veneers impregnated with flame retardants are filled in the blind holes (8); the flame-retardant layers (4) on the two sides of the core plate (5) are provided with silica gel layers at the connecting positions in the core plate framework (7), and the silica gel layers are respectively bonded with the flame-retardant layers (4) on the corresponding sides through adhesives;

the adhesive is an amino resin flame-retardant adhesive, and the flame-retardant layer (4) is a magnesite gelling flame-retardant layer.

2. The flame retardant PVC plywood according to claim 1, wherein: and a metal mesh layer (6) is arranged between the PVC layer (3) and the flame-retardant layer (4).

3. The flame retardant PVC plywood according to claim 1, wherein: and a chlorinated paraffin fireproof layer is arranged on the outer surface of the carbonized wood board layer (1).

4. The flame retardant PVC plywood according to any one of claims 1 to 3, wherein: the core board framework (7) is made of a high-density fiberboard body which is infiltrated with a flame retardant.