CN103231550B - Environment-friendly square composite flat plate - Google Patents

Abstract

The invention discloses an environment-friendly square composite flat plate which comprises a panel, a bottom plate and a central layer arranged between the panel and the bottom plate, wherein the central layer is a honeycomb paper core, the panel and the bottom plate are respectively bonded with the central layer through glue, the panel and the bottom plate respectively comprise at least one layer of paper board or paper sheet, the central layer also comprises a square frame arranged at the periphery of the honeycomb paper core and bonded with the periphery of the honeycomb paper core, and the thickness of the frame is equal to that of the honeycomb paper core. The central layer of the invention is a honeycomb paper core, the panel and the bottom plate are paper boards or leatheroid, the raw material sources of the three are paper products, the weight is light, the cost is low, wood is not directly used, and the invention is beneficial to the protection of forest resources; and the strength of the composite board reaches the strength of the wood composite board and is even higher than the strength of the wood composite board.

Description

Environmentally friendly square composite flat panel

technical field

The invention relates to a composite board, in particular to an environment-friendly square composite board.

Background technique

Composite panels are generally divided into metal composite panels, wood composite panels, color steel composite panels and rock wool composite panels. Metal composite board refers to a layer of metal plate covered with another metal plate to achieve the effect of saving resources and reducing costs without reducing the use effect (anti-corrosion performance, mechanical strength, etc.); wood composite board is a wooden board Covered on another wooden board, glued in the middle; color steel composite board refers to the thermal insulation composite maintenance board made of panel and bottom board and thermal insulation core material through adhesive (or foaming), suitable for industrial plants and warehouses etc.; rock wool composite board is made of basalt and other natural ores as the main raw materials. The rock wool board is melted into fibers at high temperature, added with an appropriate amount of binder, and solidified. It is suitable for thermal insulation of industrial equipment, buildings, and ships. , sound insulation. Both metal composite panels and wood composite panels can be used in the packaging industry, but they are heavy and expensive. Although wood composite panels are light in weight, their raw material sources are limited. Especially with the reduction of forest resources in our country, new composite panels are needed. The board replaces the board used in the existing packaging industry and the board used in the furniture industry.

For this reason, people have developed a new type of composite sheet, such as the Chinese utility model patent whose publication number is CN201566008U, a kind of plywood paper honeycomb composite sheet for packaging, including a central layer and upper and lower surface layers, and the central layer is a paper honeycomb structure , the upper and lower surface layers are glued with wooden plywood. This composite board has the characteristics of light weight, high strength and low production cost, but the paper honeycomb structure of the central layer has no frame restrictions around it, and it is very easy to bend when it is under heavy pressure. deformation, the bearing capacity is greatly reduced, and the strength is also greatly weakened, which affects the safety of use; and the upper and lower surface layers are glued with wooden plywood, and the source of raw materials is limited; in addition, the center layer and the upper and lower surface layers are easily Moisture will affect the service life.

Contents of the invention

The technical problem to be solved by the present invention is to provide an environment-friendly square composite flat plate which is light in weight, high in strength, low in cost and not easily deformed.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

The environment-friendly square composite flat panel includes a panel, a bottom plate and a central layer arranged between the panel and the bottom plate. The central layer is a honeycomb paper core. It includes at least one layer of cardboard or paper skin, and the central layer also includes a square frame arranged around the periphery of the honeycomb paper core and glued to the periphery of the honeycomb paper core. The thickness of the frame is equal to that of the honeycomb paper core.

In order to be moisture-proof and water-proof, and to prevent the composite panel from being corroded to reduce its service life, the upper surface of the outermost panel is preferably attached with a layer of upper surface layer, which is a plastic film or coated paper, and the plastic film Or the coated paper is bonded to the panel by glue; the lower surface of the outermost bottom plate is attached with a lower surface layer, and the lower surface layer is a plastic film or coated paper, and the plastic film or coated paper is bonded to the panel by glue. Bottom glued.

In order to balance the weight and strength of the composite plate, the thickness of the panel is preferably 5-50 mm, and the thickness of the bottom plate is preferably 5-50 mm.

The panel and bottom plate described in the above scheme can be a layer of cardboard or paper.

The upper surface of the panel described in the above scheme can be attached with a layer of upper surface layer, the upper surface layer is plastic film or coated paper, and the plastic film or coated paper is bonded to the panel by glue; the lower surface of the bottom plate can be attached with a The lower surface layer is a plastic film or coated paper, and the plastic film or coated paper is bonded to the bottom plate by glue.

The thickness of the panel described in the above proposal may be 5-50 mm, and the thickness of the bottom plate may be 5-50 mm.

The frame described in the above solution can be made of wooden material.

Compared with the prior art, the present invention has the following advantages:

1. The center layer is a honeycomb paper core, the panel and the bottom plate are cardboard or paper skin, and the raw materials of the three are paper products, which are light in weight, low in cost, and do not directly use wood, which is conducive to the protection of forest resources; and its strength has reached The strength of the wood composite board is even higher than that of the wood composite board, and its strength is 30000kg/㎡;

2. The frame structure makes the honeycomb paper core under heavy pressure, it will not be flattened due to the pressure spreading to the surrounding area, but the pressure will be evenly distributed on the frame and honeycomb paper core, which further improves the composite plate. Strength of;

3. The plastic film or coated paper on the outermost layer can prevent moisture and water, prolong its service life, and avoid safety hazards during use;

4. The center layer is a honeycomb paper core, and the face plate and bottom plate are cardboard or paper skin. The raw materials of the three are paper products, which avoid fumigation and quarantine during the export process.

Description of drawings

Figure 1 is a schematic diagram of the layered structure of an environmentally friendly square composite flat panel of the present invention.

The numbers in the figure are: 1, panel; 2, center layer; 3, bottom plate; 4, upper surface layer; 5, lower surface layer; 6, frame.

Detailed ways

An environment-friendly square composite flat plate of the present invention, as shown in Figure 1, is a schematic diagram of its layered structure, and in the solid figure, each layer is bonded. The environmentally friendly square composite flat panel includes a panel 1, a bottom panel 3 and a central layer 2 arranged between the panel 1 and the bottom panel 3. The central layer 2 is a honeycomb paper core, and the panel 1 and the bottom panel 3 are respectively glued to the central layer 2 by glue. Together, the panel 1 and the bottom plate 3 both include at least one layer of cardboard or paper skin, and the central layer 2 also includes a square frame 6 arranged around the periphery of the honeycomb paper core and glued to the periphery of the honeycomb paper core. The thickness of the frame 6 is the same as The thickness of the honeycomb paper core is equal. The face plate 1 and bottom plate 3 have the same shape and size as the central layer 2, and the entire composite plate is in the shape of a square. Here, the square includes two shapes of square and rectangle. Of course, the frame 6 can also be in the shape of a Japanese character or a square. In this preferred embodiment, in order to reduce the difficulty of the production process and take into account the strength requirements, the central layer 2 is square. The panel 1 and the bottom plate 3 have the same thickness, which is 5-50mm.

The upper surface of the outermost panel 1 can be coated with a layer of waterproof material, and can also be attached with a layer of plastic film or coated paper. In this preferred embodiment, in order to improve the waterproof and moisture-proof performance, the outermost panel 1 A layer of upper surface layer 4 is attached to the upper surface of the upper surface, and the upper surface layer 4 is a plastic film or coated paper, and the plastic film or coated paper is bonded to the panel 1 by glue; similarly, the outermost bottom plate 3 A lower surface layer 5 is attached to the lower surface of the lower surface, and the lower surface layer 5 is a plastic film or coated paper, and the plastic film or coated paper is bonded to the bottom plate 3 by glue.

The number of layers of the panel 1 and the base plate 3 is the same, it can be multi-layer, or one or two layers. In this preferred embodiment, the panel 1 is a cardboard with a thickness of 5mm, and the base plate 3 is a layer of cardboard with a thickness of 5 mm. The cardboard with a thickness of 5mm has reached the strength required by the flat plate in the packaging industry. An upper surface layer 4 is attached to the upper surface of the panel 1, and the upper surface layer 4 is a plastic film or a coated paper, and the plastic film or coated paper is bonded to the panel 1 by glue; the lower surface of the bottom plate 3 is attached One layer of lower surface layer 5, the lower surface layer 5 is a plastic film or coated paper, and the plastic film or coated paper is bonded to the bottom plate 3 by glue.

The frame 6 can be made of metal material or wooden material. In this preferred embodiment, the frame 6 is made of wooden material in order not to cause corrosion and rust and scratch other items due to its hardness.

Claims (3)

1. Environment-friendlyrectangular rectangular composite plate, comprise panel (1), base plate (3) and the central core (2) be arranged between panel (1) and base plate (3), described central core (2) is honeycomb paper core, described panel (1) and base plate (3) bond respectively by glue and central core (2), it is characterized in that: described panel (1) and base plate (3) include at least one layer paperboard or leatheroid, described central core (2) also comprises and is arranged at honeycomb paper core periphery, with the square frame (6) of honeycomb paper core perimeter bond, the thickness of this frame (6) is equal with the thickness of honeycomb paper core, the upper surface of outermost layer panel (1) adheres to one deck upper surface layer (4), and this upper surface layer (4) is plastic film or leaching membrane paper, and described plastic film or leaching membrane paper are bonded by glue and panel (1), the lower surface of described outermost layer base plate (3) adheres to one deck undersurface layer (5), and this undersurface layer (5) is plastic film or leaching membrane paper, and described plastic film or leaching membrane paper are bonded by glue and base plate (3), the thickness of described panel (1) is 5 ~ 50mm, and the thickness of described base plate (3) is 5 ~ 50mm.

2. Environment-friendlyrectangular rectangular composite plate according to claim 1, is characterized in that: described panel (1) and base plate (3) are a layer paperboard or leatheroid.

3. Environment-friendlyrectangular rectangular composite plate according to claim 1 and 2, is characterized in that: described frame (6) is made for wood materials.