CN219410347U - A heat-resistant cardboard - Google Patents

Abstract

The utility model discloses a heat-resistant paperboard, and belongs to the technical field of paperboards; comprises a lower paperboard, a through hole, an upper paperboard, a side protective layer, a bottom protective layer and a connecting paperboard; the connecting paper board is horizontally arranged, the upper paper board is arranged above the connecting paper board, and the upper paper board is fixedly connected with the connecting paper board; the lower paper board is arranged below the connecting paper board and is fixedly connected with the connecting paper board; through holes in the horizontal direction are formed in the upper paperboard and the lower paperboard; the upper surface of the upper paperboard is coated with a bottom protective layer, and the lower surface of the lower paperboard is also coated with the bottom protective layer; both sides of the upper paperboard and the lower paperboard are coated with side protective layers; according to the utility model, the side protective layer and the bottom protective layer are arranged on the paperboard, so that the effects of heat insulation and flame retardance can be achieved, and the problems that the traditional paperboard is thermolabile and easy to burn can be solved by arranging the flame retardant layer.

Description

A heat-resistant cardboard

technical field

The utility model provides a heat-resistant cardboard, which belongs to the technical field of cardboard.

Background technique

Cardboard is made of various pulps and interwoven fibers. Cardboard is cheap, easy to carry, move and unload, recyclable, safe and environmentally friendly, and is widely used in sofas, mattresses, home decoration, food packaging and other fields. However, the existing cardboard structure has poor heat resistance and fire resistance. Ordinary cardboard can burn at 130 degrees Celsius. After burning, the items stored in the cardboard will be destroyed, which cannot meet the needs of short-term use under high temperature conditions. Therefore, there is a need for a cardboard with good heat resistance, which can satisfy its short-term use effect at high temperature.

Utility model content

The heat-resistant cardboard provided by the utility model has a simple structure. By arranging a side protective layer and a bottom protective layer on the cardboard, the heat-insulating and flame-retardant effect can be achieved, and the flame-retardant layer can solve the problem that the existing cardboard is not heat-resistant and easy to burn.

In order to solve the above problems, the utility model proposes a technical solution: a heat-resistant cardboard, including a lower cardboard, a through hole, an upper cardboard, a side protective layer, a bottom protective layer, and a connecting cardboard; the connecting cardboard is arranged horizontally, and the upper cardboard is placed above the connecting cardboard, and the upper cardboard is fixedly connected to the connecting cardboard; the lower cardboard is placed below the connecting cardboard, and the lower cardboard is fixedly connected to the connecting cardboard; The lower surface of the lower cardboard is also coated with a bottom protective layer; both sides of the upper cardboard and the lower cardboard are coated with a side protective layer;

Both the upper cardboard and the lower cardboard are provided with connecting holes, and the connecting holes communicate with the through hole and the connecting cardboard at the same time;

The connecting cardboard is corrugated, and the connecting cardboard is provided with dredge holes;

The inner wall of the through hole is provided with a flame retardant layer, and the coating material of the flame retardant layer is a flame retardant;

The bottom protective layer is composed of a fireproof layer and a heat insulation layer from outside to inside, and the material of the fireproof layer is aluminum silicate fiber, and the material of the heat insulation layer is pearl cotton;

The composition and structure of the side protection layer and the bottom protection layer are completely the same.

The beneficial effects of the utility model:

1. The upper surface of the upper cardboard is coated with a bottom protective layer, and the lower surface of the lower cardboard is also coated with a bottom protective layer; both sides of the upper cardboard and the lower cardboard are coated with a side protective layer; by setting the bottom protective layer and the side protective layer, the cardboard can be protected; the fireproof layer can play the role of fire prevention, and the heat insulation layer can play a role of heat insulation, preventing excessive heat from outside from invading the inside of the cardboard and causing the cardboard to spontaneously ignite.

2. There is a flame retardant layer on the inner wall of the through hole, and the coating material of the flame retardant layer is a flame retardant; the flame retardant can release non-combustible gas when heated, and dilute the combustible gas decomposed from the combustible, so as to achieve the effect of flame retardancy; the setting of connecting holes and dredging holes can make the non-combustible gas released by the flame retardant quickly diffuse to various positions of the cardboard, so as to achieve the effect of flame retardancy; On the other hand, the corrugated shape can increase the supporting force of the cardboard.

In summary, the utility model can achieve the effect of heat insulation and flame retardant by setting the side protective layer and the bottom protective layer on the cardboard, and setting the flame retardant layer can solve the problem that the existing cardboard is not heat-resistant and easy to burn.

Description of drawings

Fig. 1 is a structural schematic diagram of a heat-resistant cardboard of the present invention.

Fig. 2 is a schematic diagram of the structure in the through hole of a heat-resistant cardboard of the present invention.

Fig. 3 is a structural schematic diagram of a bottom protective layer of a heat-resistant cardboard of the present invention.

1. Lower cardboard; 2. Through hole; 3. Upper cardboard; 4. Side protective layer; 5. Bottom protective layer; 6. Connecting hole; 7. Connecting cardboard;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1-3: the utility model provides a heat-resistant cardboard: including a lower cardboard 1, a through hole 2, an upper cardboard 3, a side protective layer 4, a bottom protective layer 5, and a connecting cardboard 7; 2. The upper surface of the upper cardboard 3 is coated with a bottom protective layer 5, and the lower surface of the lower cardboard 1 is also coated with a bottom protective layer 5; both sides of the upper cardboard 3 and the lower cardboard 1 are coated with a side protective layer 4; the upper cardboard 3 and the lower cardboard 1 are provided with connecting holes 6, and the connecting holes 6 are connected to the through hole 2 and the connecting cardboard 7 at the same time; The coating material of 9 is a flame retardant; the bottom protection layer 5 is composed of a fireproof layer 10 and a heat insulation layer 11 from outside to inside, and the material of the fireproof layer 10 is aluminum silicate fiber, and the material of the heat insulation layer 11 is pearl cotton; the composition and structure of the side protection layer 4 and the bottom protection layer 5 are exactly the same.

Principle of the utility model

The bottom protective layer 5 is composed of a fireproof layer 10 and a heat insulation layer 11; when the cardboard is subjected to high temperature, the material of the outermost layer of fireproof layer 10 is aluminum silicate fiber, which can play a fireproof effect and prevent the flame from directly burning the upper cardboard 3 and the lower cardboard 1; the material of the heat insulation layer 11 is pearl cotton, which can isolate the high temperature of the outside world and prevent the upper cardboard 3 and the lower cardboard 1 from being spontaneously ignited by high temperature. The composition and structure of the side protection layer 4 and the bottom protection layer 5 are exactly the same. The side protection layer 4 can protect the sides of the upper cardboard 3 and the lower cardboard 1 to prevent flame and high temperature from burning from the side of the cardboard. Compared with the traditional technology, the protection is more comprehensive, and the heat resistance and fire resistance are better.

When the cardboard is subjected to high temperature, the flame retardant in the flame retardant layer 9 undergoes a strong endothermic reaction at high temperature, absorbs most of the heat, reduces the temperature inside the cardboard, effectively inhibits the generation of flammable gas, and prevents the spread of combustion; at the same time, the flame retardant releases non-combustible gas when heated, dilutes the combustible gas decomposed from combustibles, and reduces the concentration of combustible gas below the combustion limit; It also reduces the oxygen concentration in the cardboard, inhibits the combustion from continuing, and achieves the effect of flame retardancy.

The utility model and its implementations have been described above. This description is not restrictive, and what is shown in the drawings is only one of the implementations of the utility model, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural mode and embodiment similar to the technical solution, it shall fall within the scope of protection of the utility model.

Claims (6)

1. A heat resistant paperboard characterized by: comprises a lower paperboard (1), a through hole (2), an upper paperboard (3), a side protective layer (4), a bottom protective layer (5) and a connecting paperboard (7); the connecting paper board (7) is horizontally arranged, the upper paper board (3) is arranged above the connecting paper board (7), and the upper paper board (3) is fixedly connected with the connecting paper board (7); the lower paperboard (1) is arranged below the connecting paperboard (7), and the lower paperboard (1) is fixedly connected with the connecting paperboard (7); through holes (2) in the horizontal direction are formed in the upper paperboard (3) and the lower paperboard (1); the upper surface of the upper paperboard (3) is coated with a bottom protective layer (5), and the lower surface of the lower paperboard (1) is also coated with the bottom protective layer (5); both sides of the upper paperboard (3) and the lower paperboard (1) are coated with side protective layers (4).

2. A heat resistant paperboard as set forth in claim 1, wherein: the upper paperboard (3) and the lower paperboard (1) are internally provided with connecting holes (6), and the connecting holes (6) are simultaneously communicated with the through holes (2) and the connecting paperboard (7).

3. A heat resistant paperboard as set forth in claim 1, wherein: the connecting paper board (7) is corrugated, and the connecting paper board (7) is provided with a sparse through hole (8).

4. A heat resistant paperboard as set forth in claim 1, wherein: the inner wall of the through hole (2) is provided with a flame retardant layer (9), and the coating material of the flame retardant layer (9) is a flame retardant.

5. A heat resistant paperboard as set forth in claim 1, wherein: the bottom protective layer (5) is composed of a fireproof layer (10) and a heat insulation layer (11) from outside to inside, the fireproof layer (10) is made of aluminum silicate fibers, and the heat insulation layer (11) is made of pearl wool.

6. A heat resistant paperboard as set forth in claim 1, wherein: the side protective layer (4) and the bottom protective layer (5) have the same composition.