CN206840850U - A kind of high density composite plate - Google Patents

Abstract

The utility model relates to a high-density composite board, which comprises a first high-density board, a first filling layer, a first glue-free straw fiber layer, an inner layer, a second glue-free straw fiber layer, a second filling layer and The second high-density board, and the inner layer includes a plurality of grids connected in sequence. The high-density composite board provided by the utility model has the characteristics of light weight, heat preservation, moisture resistance, fire prevention, and "0" formaldehyde, and has a simple structure and high density. It can replace wood as a board for interior decoration floors and logistics pallet panels, etc. Therefore, it has broad application prospects.

Description

A high density composite board

technical field

The utility model relates to the technical field of environmental protection building materials, in particular to a high-density composite board.

Background technique

Wood is a heterogeneous and anisotropic capillary-porous natural polymer composite material with unique biological characteristics and physicochemical properties. At home and abroad, wood has always been widely used in building interior decoration and decoration. It gives people the enjoyment of natural beauty, and can also make the interior space produce warmth and intimacy. In ancient buildings, wood is used as an important material for fine wood decoration, which is an artistic decoration with extremely high craftsmanship. Therefore, timber has become an important resource in the development of the national economy and has a wide range of uses. However, with the development of the national economy, my country's forest resources have become less and less, and there is a large contradiction between the supply and demand of timber. Therefore, the current market There are all kinds of boards that can replace wood boards, mainly composite boards. According to different purposes, there are different composite boards. High-density boards are very popular in home decoration because of their own characteristics, but The current high-density board still has the problem of high formaldehyde content and is difficult to volatilize. As a furniture material, it is very harmful to the human body. Therefore, seeking a strong, cheap and environmentally friendly substitute is one of the problems to be solved in this field. .

Utility model content

In view of the problems existing in the prior art, the purpose of this utility model is to provide a high-density composite board that is environmentally friendly, strong, light in weight, cheap, and can be applied to indoor and outdoor walls and furniture.

The purpose of this utility model is to realize through the following technical solutions:

A high-density composite board, comprising a first high-density board, a first filling layer, a first glue-free straw fiber layer, an inner layer, a second glue-free straw fiber layer, a second filling layer and a second high-density board connected in sequence board, and the inner layer includes a plurality of sequentially connected slots.

Further, the grid is a corrugated grid structure.

Further, the grid is a strip grid structure.

Further, the first high-density board is made of high-fiber density board.

Further, the first filling layer is a polyurethane foam layer.

Further, the first glue-free straw fiber layer is composed of low-density straw fibers.

Further, the second glue-free straw fiber layer is composed of low-density straw fibers.

Further, the second filling layer is a polyurethane foam layer.

Further, the second high-density board is made of high-fiber density board.

The beneficial effect that the utility model has:

1. Compared with the existing high-density composite boards of the same kind, the high-density composite board provided by the utility model has the characteristics of light weight, heat preservation, noise prevention, moisture resistance, fire prevention and "0" formaldehyde;

2. The high-density composite board provided by the utility model, because the first high-density board and the first filling layer, between the first filling layer and the first glue-free straw fiber layer, and between the first glue-free straw fiber layer and the inner layer , the inner layer and the second non-glue straw fiber layer, the second non-glue straw fiber layer and the second filling layer, the second filling layer and the second high-density board, the layers are tightly bonded, which is strong and not prone to cracks, and The cost of each layer is cheap, "0" formaldehyde, which is a green and environmentally friendly building material;

3. The high-density composite board provided by the utility model can be used as a panel of a logistics pallet because the inner layer includes a plurality of inserts, has good cushioning performance, is light, and is strong and firm;

4. The high-density composite board provided by the utility model has a simple structure, low cost, and high board density, so it can be used for interior decorative floor boards and logistics pallet panels, etc., so the application prospect is relatively broad.

Description of drawings

Fig. 1 is one of structural representations of the high-density composite board provided by the utility model;

Fig. 2 is the second structural representation of the high-density composite board provided by the utility model;

In the figure, 1-the first high-density board, 2-the first filling layer, 3-the first glue-free straw fiber layer, 4-inner layer, 5-insert, 6-the first glue-free straw fiber layer, 7- 2nd fill layer, 8-2nd high density board.

detailed description

The utility model provides a high-density composite board. The following specific examples are used to illustrate the specific implementation manner. It should be understood that the specific examples described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

Referring to Figure 1 and Figure 2, the utility model provides a high-density composite board, including a first high-density board 1, a first filling layer 2, a first glue-free straw fiber layer 3, and an inner layer 4 connected in sequence , the second glue-free straw fiber layer 6, the second filling layer 7 and the second high-density board 8, and the inner layer 4 includes a plurality of sequentially connected inserts 5; Cracks, and the cost of each layer is cheap, "0" formaldehyde, which is a green and environmentally friendly building material;

The grid 5 is a corrugated grid structure, and the grid 5 is made of corrugated paper (as shown in Figure 1). With such a design, the cushioning performance is good, light, strong and firm, the raw materials are sufficient, cheap, and easy to automate production, so that It can be used as a panel for logistics pallets;

Alternatively, the grid 5 is a strip-shaped grid structure; the grid 5 is made of straw slats (as shown in Figure 2). With such a design, the cushioning performance is good, the strength is high, it is not easy to deform, it is cheap, and it saves resources. thus allowing it to be used as a panel for logistics pallets;

The first high-density board 1 is made of a high-fiber density board; the second high-density board 8 is made of a high-fiber density board; because the high-fiber density board is smooth, it has good dimensional stability when the ambient temperature and humidity change , easy to carry out surface decoration treatment, the internal structure is fine and dense, especially with dense edges, which can be processed into various special-shaped edges, and there is no need to directly paint the edges, which can achieve better modeling effects, uniform structure, and consistent inside and outside, so It can be carved on the surface and processed into decorative lines of various sections, suitable for use as a board for interior decoration floors or a panel for logistics pallets;

The first filling layer 2 is a polyurethane foam layer; the second filling layer 7 is a polyurethane foam layer; since the polyurethane foam is a new type of synthetic material with heat preservation and waterproof functions, its thermal conductivity is low, only 0.022～0.033W/(m*K), which is equivalent to half of extruded board, and has the lowest thermal conductivity among all insulation materials at present. Therefore, polyurethane foam is used as the first filling layer 2 and the second filling layer 7, which can make all The above-mentioned high-density composite board has good heat preservation, heat insulation and waterproof functions;

The first glue-free straw fiber layer 3 is made of low-density straw fibers; the second glue-free straw fiber layer 6 is made of low-density straw fibers. It is environmentally friendly and cheap, so it can be used as a household material.

The high-density composite board provided by the utility model has the characteristics of light weight, heat preservation, moisture resistance, fire prevention, and "0" formaldehyde, and has a simple structure, low cost, and high board density, so it can replace wood as a board for interior decoration floors and Logistics pallet panels, etc., so it has broad application prospects.

Finally, it should be noted that: the above-described embodiments are only used to illustrate the technical solutions of the present utility model, rather than limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art It should be understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various implementations of the present utility model. The scope of technical solutions.

Claims (9)

1. A high-density composite board, characterized in that it comprises a first high-density board, a first filling layer, a first glue-free straw fiber layer, an inner layer, a second glue-free straw fiber layer, and a second filling layer connected in sequence. layer and the second high-density board, and the inner layer includes a plurality of grids connected in sequence. 2. The high-density composite board according to claim 1, characterized in that, the grid is a corrugated grid structure. 3. The high-density composite board according to claim 1, characterized in that, the grid is a strip grid structure. 4. The high-density composite board according to any one of claims 1-3, characterized in that, the first high-density board is made of a high-fiber density board. 5. The high-density composite board according to claim 4, characterized in that, the first filling layer is a polyurethane foam layer. 6. The high-density composite board according to claim 5, characterized in that, the first glue-free straw fiber layer is composed of low-density straw fibers. 7. The high-density composite board according to claim 6, characterized in that, the second glue-free straw fiber layer is composed of low-density straw fibers. 8. The high-density composite board according to claim 7, characterized in that, the second filling layer is a polyurethane foam layer. 9. The high-density composite board according to claim 8, characterized in that, the second high-density board is made of a high-fiber density board.