TWI793716B - Durable and high temperature resistant plate body - Google Patents

Abstract

A long-lasting high-temperature-resistant board body, which includes: a fireproof layer, a first panel and a second panel. The fireproof layer includes a core board, a first fireproof board and a second fireproof board. The core board is located between the first fireproof board and the second fireproof board. The board and the second fireproof board are bonded; the first panel is bonded to the first fireproof board through an organic adhesive; the second panel is bonded to the second fireproof board through an organic adhesive. Wherein the core board is a cement foam board, and the first panel and the second panel are steel plates. In this structure, the cement foam board is coated with inorganic glue on both sides and then bonded with the fireproof board to form the fireproof layer, and the organic glue is used to bond the steel plate to the fireproof layer. Under high temperature, the fireproof layer will not be degummed or deformed. The organic glue loses its adhesiveness at 200°C, and the steel plate on the fire surface will separate from the fireproof layer. The fireproof layer will not be broken due to the thermal deformation of the steel plate on the fire surface, and still has the original fire resistance and heat resistance.

Description

Durable and high temperature resistant plate body

The present invention relates to a board body, especially a board body that can withstand high temperature for a long time.

A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. Fire doors are doors or gates installed in buildings to resist the passage of flames and combustion gas products. And as the board body of the fire door, it is very important.

Article 97 of the Building Design and Construction Code of the Building Technical Regulations stipulates that the entrance and exit of the safety ladder should be equipped with a fire door with a fire resistance of more than one hour and a heat resistance of more than half an hour, and has a smoke-shielding performance. Article 97 of the Building Design and Construction Code of Building Technical Regulations also stipulates that the entrances and exits from indoor balconies or into smoke exhaust rooms should be installed with fire doors with a fire resistance of more than one hour and a heat resistance of more than half an hour. Article 86 of the Building Design and Construction Code of the Building Technical Regulations stipulates that the kitchen of the building whose use category is the third group in Article B shall be separated from the floor of the floor by walls, fireproof doors and windows and other fireproof equipment with a fireproof time limit of more than one hour. That is to say, in the current building fire protection regulations, the entrance door and kitchen door of each household must be fire doors. Among them, fire resistance (Fire Resistance), heat resistance (Fire Insulation) and fire resistance period (Fire Resistance Period) are important characteristics used to evaluate the performance of fire doors.

Fire resistance refers to the ability of a building component to prevent the penetration of flames and hot gas within a certain period of time when one side of the building is exposed to fire under the conditions of the fire resistance test, or the ability of flames to appear on the back side of the fire. Heat resistance refers to the ability of a building component to keep the temperature of its non-heating surface not exceeding the specified value within a certain period of time when one side of the building component is exposed to fire under the conditions of the fire resistance test. Fire resistance aging refers to the fire resistance test for any building component according to the time-temperature standard curve, from the time it is subjected to fire to the time when the component loses its stability or integrity or thermal insulation, the time it takes to resist fire, usually Expressed in hours.

The fire door is composed of a plate body, which includes a central fireproof layer and an outermost panel (ie, a steel plate). At present, only one hour of fire resistance can be achieved. To achieve two hours of fire resistance, the thickness of the board will be greatly increased to 70mm~80mm, which is still unacceptable by the market.

For example, a "fireproof board and a fireproof door using it" disclosed in the invention patent I628349 of the Republic of China includes a porous fireproof layer with a first main surface, an opposite second main surface and at least one gap, and the at least one gap forms an opening on at least one of the first main surface and the second main surface; and an intumescent flame-retardant material, which is filled in the at least one gap, and when encountered When heated, an expanded carbon layer is formed to achieve a core panel with a two-hour fire resistance.

However, the main purpose of this case is to achieve a core board with a two-hour fire resistance, without standardizing and improving its thickness, and there is still room for improvement.

In view of this, how to get rid of the above deficiency is the technical difficulty that the inventor of this case wants to solve.

In view of the above, the purpose of the present invention is to solve and improve the existing problems and deficiencies in the conventional practice.

In order to achieve the above objectives, the present invention provides a durable high-temperature-resistant board body, which includes: a fireproof layer, a first panel and a second panel. The fire protection layer consists of a core board, a first fireproof board and a second fireproof board, the core board is located between the first fireproof board and the second fireproof board, and the two sides of the core board are respectively connected to the first fireproof board by an inorganic adhesive board and the second fireproof board; the first panel is pasted with the first fireproof board through an organic adhesive; the second panel is pasted with the second fireproof board through the organic adhesive combine.

Wherein, the core board includes cement, fly ash, bentonite, fiber, foaming agent, foam stabilizer and water.

Wherein, the inorganic adhesive includes sodium silicate, sepiolite, sodium fluorosilicate, bentonite, sodium tripolyphosphate and zinc oxide.

Wherein, the first fireproof board is calcium silicate board, fiber cement board, magnesium oxide board or magnesium carbonate board.

Wherein, the organic adhesive includes polyurethane glue or acrylic glue.

Wherein, the first panel is a steel plate.

Wherein, the second fire prevention board is calcium silicate board, fiber cement board, magnesium oxide board or magnesium carbonate board.

Wherein, the second panel is a steel plate.

Wherein, its overall thickness is within 55 mm.

Wherein, the thickness of the core board is 40mm-48mm.

Wherein the core board is a cement foam board, and the first panel and the second panel are steel plates. In this structure, the cement foam board is coated with the inorganic glue on both sides, and then bonded to the first fireproof board and the second fireproof board to form the fireproof layer, and the organic adhesive is used to bond the steel plate to the fireproof board. layer. Under high temperature, the fireproof layer will not degummed or deformed. The organic adhesive loses its adhesiveness at 200°C, and the steel plate on the fire surface will separate from the fireproof layer, and the fireproof layer will not be heated by the steel plate on the fire surface. The deformation is broken, and it still has the original fire resistance and heat resistance. Because the board itself has a certain degree of rigidity, excellent fire resistance and heat resistance, the board does not need a lot of steel support when it is applied to fire doors, which can reduce the thickness and weight of fire doors, reduce costs, and facilitate installation construction.

1: board body

11: fire protection layer

111: core board

112: The first fire board

113: The second fire board

114: Inorganic adhesive

115: Inorganic adhesive

12: First panel

121: Organic adhesive

13: Second panel

131: Organic adhesive

S100~S106: steps

S200~S201: Steps

S300~S309: steps

S400~S407: steps

[Fig. 1] is a schematic structural view of the durable high-temperature-resistant panel of the present invention.

[Figure 2] is the flow chart of the preparation of the core board.

[Figure 3] is the flow chart of the preparation of inorganic adhesives.

〔Figure 4〕is a combination flow chart of the fire protection layer.

[Fig. 5] is a combination flowchart of the fire protection layer, the first panel and the second panel.

In order for your examiner to easily and concisely understand the other features and advantages of the present invention and the effects achieved by it can be more apparent, the present invention is described in detail with the accompanying drawings as follows:

Please refer to FIG. 1 , the present invention provides a durable high-temperature-resistant board body 1 , which includes: a fireproof layer 11 , a first panel 12 and a second panel 13 .

The fireproof layer 11 comprises a core board 111, a first fireproof board 112 and a second fireproof board 113, the core board 111 is located between the first fireproof board 112 and the second fireproof board 113, and the core board 111 The first fireproof board 112 and the second fireproof board 113 are attached to each other through an inorganic adhesive 114 and 115 respectively.

The core board 111 is a cement foam board, and the core board 111 includes cement, fly ash, bentonite, fiber, foaming agent, foam stabilizer and water. The core board 111 is based on the total weight of raw materials, cement accounts for 56-58wt%, fly ash accounts for 1-1.5wt%, bentonite accounts for 1-1.5wt%, fiber accounts for 0.5-0.6wt%, Foaming agent accounts for 0.3~0.4wt%, foam stabilizer accounts for 1~1.5wt% and water accounts for 36~40wt%. The thickness of the core board 111 is 40mm-48mm.

The inorganic adhesives 114 and 115 include sodium silicate (Sodium Silicon, Na ₂ O.nSiO ₂ ), sepiolite (Sepiolite, (Si ₁₂ )(Mg ₈ )O ₃₀ (OH) ₄ (OH ₂ ) ₄ . 8H ₂ O), sodium fluorosilicate (Sodium Silicofluoride, Na2SiF ₆ ), bentonite (Bentonite), sodium tripolyphosphate (Sodium Tripolyphosphate, Na ₅ P ₃ O ₁₀ ) and zinc oxide (Zinc Oxide, ZnO). Based on the total weight of the raw materials, the inorganic adhesives 114 and 115 include 44-45 wt% of sodium silicate, 44-45 wt% of sepiolite, 5-6 wt% of sodium fluorosilicate, 1.5-2 wt% of bentonite, Sodium tripolyphosphate accounts for 1.5~2wt% and zinc oxide accounts for 1.5~2wt%.

The first fireproof board 112 and the second fireproof board 113 can be calcium silicate board, fiber cement board, magnesium oxide board or magnesium carbonate board. Both the thickness of the first fireproof board 112 and the second fireproof board 113 are 3mm-5mm.

The first panel 12 and the second panel 13 can be steel plates. The first panel 12 is attached to the first fireproof board 112 through an organic adhesive 121 . The second panel 13 is attached to the second fireproof board 113 through the organic adhesive 131 . Both the first panel 12 and the second panel 13 have a thickness of 0.6-1 mm.

The organic adhesives 121 and 131 include polyurethane (Polyurethane, PU) glue or acrylic (ie, polymethylmethacrylate, PMMA) glue.

The core board 111, the first fireproof board 112, the second fireproof board 113, the first panel 12 and the second panel 13 can be adjusted within the above-mentioned thickness range to meet actual needs, but the The overall thickness of the plate body 1 needs to be within 55 mm.

The following description provides the durable high-temperature-resistant plate body 1 provided by the present invention, and its specific manufacturing The preparation process is as follows:

The preparation process of the core board 111:

Please refer to FIG. 1 and FIG. 2, step S100, add water, foaming agent and foam stabilizer into the foaming machine and stir, and set the time of each stirring. That is to add a certain amount of water, foaming agent and foam stabilizer into the bucket in sequence, and then pour it into the foaming machine and stir. After stirring evenly, connect the delivery pipe to the foaming machine, and set the foaming machine every time Stirring working time;

Step S101, adding water and fibers into the mixer and stirring for 1-2 minutes, then adding cement into the mixer and stirring for 1-2 minutes, adding foam into the mixer, and stirring for 4-5 minutes to form a foamed cement slurry. That is to add a certain amount of water and fiber into the mixer in sequence and stir for 1-2 minutes, then add a certain amount of cement into the mixer and mix for 1-2 minutes, after that, connect the delivery pipe of the foaming machine to the mixer and start foaming Add the foam into the mixer, and continue to stir for 4 to 5 minutes to form a foamed cement slurry;

Step S102, pouring the stirred foamed cement slurry into the delivery bucket;

Step S103, pouring the foamed cement slurry into the forming mold. It means pouring the foamed cement slurry in the conveying barrel into the forming mold;

Step S104, start the temperature control device of the forming mold. That is to start the temperature control device of the forming mold, so that the foamed cement paste can react and form smoothly under the controlled temperature condition;

Step S105, after waiting for 15-20 hours, demoulding to form a semi-finished product of the core board. That is to say, after waiting for 15-20 hours, the semi-finished product of the core plate 111 is demoulded;

Step S106, put the semi-finished product into a curing room at a temperature of 20-40°C for 2-3 days to obtain a finished core board. It means that the semi-finished product after demoulding is put into the curing room for curing, the curing temperature is 20-40°C, and the curing time is 2-3 days, and the finished product of the core board 111, that is, cement hair Foam board.

The preparation process of the inorganic adhesive 114, 115:

Please refer to FIG. 1 and FIG. 3, step S200, put various raw materials into the mixer, start the mixer and stir for 4-5 minutes to form the inorganic adhesive. It means to add quantitative raw materials such as sodium silicate, sepiolite, sodium fluorosilicate, bentonite, sodium tripolyphosphate and zinc oxide into the mixer, start the mixer and stir for 4 to 5 minutes to form the inorganic adhesive 114, 115;

Step S201, put the stirred inorganic adhesive into a waterproof airtight container for ready use at any time. It means that the inorganic adhesives 114 and 115 (in the form of dry material) that have been stirred are put into a waterproof airtight container for ready use at any time.

The assembly process of the fireproof layer 11: Please refer to Fig. 1 and Fig. 4, step S300, add the inorganic adhesive into the mixing tank, and then add 1.1 times of 50°C water for stirring. That is, take it out from the waterproof airtight container, add an appropriate amount of the inorganic adhesive 114, 115 (in the form of dry material) into the mixing bucket, then add 1.1 times of 50°C water into the mixing bucket, and start the mixer to stir evenly;

Step S301, pour the stirred inorganic adhesive into the paint sprayer. It means that the inorganic adhesives 114 and 115 that have been stirred (from a dry material to a liquid state after adding water) are poured into the airless paint sprayer (note: the airless paint sprayer is a kind of equipment that can automatically spray paint);

Step S302, cleaning the dust on the surface of the core board and the first fireproof board. It means that the core board 111 and the first fireproof board 112 (i.e. calcium silicate board) are placed adjacent to each other, and the dust is removed on the surface of the core board 111 and the first fireproof board 112 with a dust blower;

Step S303, spraying the inorganic adhesive on the surface of the core board and the first fireproof board. It means that the inorganic adhesive 114 is sprayed on the core board 111 and the first fireproof board with an airless paint sprayer. On the surface of 112, the spray thickness is 0.1~0.3mm;

Step S304, neatly attaching the core board to the surface of the first fireproof board. It means that the sprayed core board 111 is opposite to the surface of the first fire prevention board 112 and fit together neatly;

Step S305, turn over. It means to turn over the core board 111 and the first fireproof board 112;

Step S306, cleaning the dust on the surfaces of the core board and the second fireproof board. It means that the core board 111 and the second fireproof board 113 (i.e. calcium silicate board) are placed adjacent to each other, and the dust is removed on the surface of the core board 111 and the second fireproof board 113 with a dust blower;

Step S307, spraying the inorganic adhesive on the surface of the core board and the second fireproof board. That is, spray the inorganic adhesive 115 on the surface of the core board 111 and the second fireproof board 113 with an airless paint sprayer, and the spraying thickness is 0.1~0.3 mm;

Step S308, neatly attaching the core board to the surface of the second fire prevention board. It means that the sprayed core board 111 is opposite to the surface of the second fire prevention board 113 and fit together neatly;

Step S309, stacking and placing for 15-20 hours to cure the inorganic adhesive to form a fireproof layer. It means that the core board 111 , the first fireproof board 112 , and the second fireproof board 113 are stacked for 15-20 hours, so that the inorganic adhesives 114 and 115 are cured to form the fireproof layer 11 .

The assembly process of the fireproof layer 11, the first panel 12 and the second panel 13:

Please refer to Figs. 1 and 5, step S400, dust is removed from the surface of the first fireproof board and the first panel in the fireproof layer. That is to say, after step S309, the fireproof layer 11 formed in step S309 and the first panel 12 (ie steel plate) are placed adjacent to each other, and the first fireproof board 112 and the first fireproof board 112 in the fireproof layer 11 are placed with a dust blower. Dust is removed from the surface of the first panel 12;

Step S401, spraying an organic adhesive on the first fireproof board in the fireproof layer with the surface of the first panel. It means that the organic adhesive 121 is sprayed on the surface of the first fireproof board 112 and the first panel 12 in the fireproof layer 11, and the spraying thickness is 0.05~0.1mm;

Step S402, neatly attaching the first fireproof board in the fireproof layer to the first panel. It means that the first fireproof board 112 in the fireproof layer 11 is opposite to the surface of the first panel 12, and they are neatly pasted;

Step S403, turn over. It means to turn over the fireproof layer 11 and the first panel 12;

Step S404, removing dust from the second fireproof board and the second panel in the fireproof layer. It means that the fireproof layer 11 and the second panel 13 (i.e. the steel plate) are adjacently placed, and the dust is removed on the surface of the second fireproof board 113 and the second panel 13 in the fireproof layer 11 with a dust blower;

Step S405, spraying an organic adhesive on the second fireproof board and the second panel in the fireproof layer. It means that the organic adhesive 131 is sprayed on the surface of the second fireproof board 113 and the second panel 13 in the fireproof layer 11, and the spraying thickness is 0.05~0.1mm;

Step S406, neatly attaching the second fire prevention board in the fire protection layer to the second panel. It means that the second fireproof board 113 in the fireproof layer 11 is opposite to the surface of the second panel 13, and they are neatly pasted;

Step S407, stacking and placing for 15-20 hours, so that the organic adhesive is cured to form a board body. It means that the fireproof layer 11 , the first panel 12 , and the second panel 13 are stacked and placed for 15-20 hours, so that the organic adhesives 121 and 131 are cured to form the board body 1 .

In summary, since the core board 111 contains cement, fly ash, bentonite, fiber, foaming agent, foam stabilizer and water, the board body 1 provides good rigidity, fire resistance and heat resistance for application For fire doors, there is no need for a large number of steel structure supports and the thickness, weight and cost are reduced, which is convenient for installation and construction.

Features of the present invention are as follows:

1. The structure of the board body 1 includes the core board 1 located in the center. After the inorganic adhesive 114 and 115 are sprayed on both sides of the core board 1, the first fireproof board 112 and the second fireproof board 113 are attached to each other. (i.e. calcium silicate board), and the organic adhesive 121, 131 is sprayed on the calcium silicate board, the first panel 12 and the second panel 13 are located on the outermost side, and the total thickness of the board body 1 is within 55mm. .

2. The board body 1 can achieve a fire resistance period (Fire Resistance Period, FRP) of two hours.

3. The board body 1 is made of inorganic raw materials, which is non-toxic and harmless, and will not pollute the environment.

4. The inorganic adhesives 114 and 115 have good bonding strength and water resistance.

5. The core board 11 can resist cracking, increase toughness, and have good impact resistance.

When a conventional fire door is heated on one side, because the steel plate on the fire side and the steel framework inside it expands due to heat, while the back side still does not expand at low temperature, the whole fire door is bent and deformed, and the fireproof layer inside is broken , so that the fire door loses fire resistance and heat resistance. Therefore, it is necessary to use larger steel frames and thicker fireproof boards to reduce the degree of thermal expansion and deformation of the fire surface, and reduce the risk of losing fire resistance and heat resistance. Therefore, the conventional fire doors need to adopt larger steel frames and thicker fireproof boards.

Compared with conventional fire doors, the advantages of the fire doors made of the plate body 1 of the present invention are as follows:

1. The board body 1 of this structure uses the organic adhesives 121, 131 to attach the first panel 12 and the second panel 13 (ie, the steel plate) to the fireproof layer 11. The main function is: At high temperature, the organic adhesive 121 or 131 on the fire-receiving surface loses its adhesiveness at 200°C, and the steel plate on the fire-receiving surface will separate from the fireproof layer 11. break off, It still has the original fire resistance and heat resistance.

2. This structure adopts composite materials, and cement foam board (that is, the core board 111) is formed by cement, fly ash, bentonite, fiber, foaming agent, foam stabilizer and water. Brush the inorganic adhesive 114 , 115 and then attach the first fireproof board 112 and the second fireproof board 113 to form the fireproof layer 11 . Under high temperature, the fireproof layer 11 will not be degummed or deformed, thereby ensuring the integrity and heat resistance of the fireproof door made of the board body 1 .

3. For the fireproof door made of the plate body 1, the fireproof layer 11 still has the original fire resistance and heat resistance on the backside, so that the temperature of the backside does not exceed 140°C. At a temperature of 140° C. and a door height of 2.1 meters, the steel plate on the unexposed surface (that is, the first panel 12 or the second panel 13 ) has a thermal expansion of only about 3 millimeters, a very low deformation, and the organic adhesive Agent 121 or 131 still maintains the original adhesiveness at this temperature and does not damage the integrity of the fire door.

Four, therefore, the fireproof door that this plate body 1 is made does not need larger steel frame and thicker fireproof board. Only the steel plate on the fire surface (i.e. the first panel 12 or the second panel 13) is degummed and deformed when heated, and the other parts remain the same. Even if the impact and water tests are added, the fire door can still open and close smoothly.

The above discussion is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, equivalent modifications, combinations, replacements or transfers, etc., are made without departing from the spirit and scope of the present invention. , should be covered within the scope of the patent application of the present invention.

1: board body

11: fire protection layer

111: core board

112: The first fire board

113: The second fire board

114: Inorganic adhesive

115: Inorganic adhesive

12: First panel

121: Organic adhesive

13: Second panel

131: Organic adhesive

Claims (9)

A long-lasting high-temperature-resistant board body, which includes: a fireproof layer, including a core board, a first fireproof board and a second fireproof board, the core board is located between the first fireproof board and the second fireproof board , and the two sides of the core board are attached to the first fireproof board and the second fireproof board through an inorganic adhesive, wherein the inorganic adhesive contains sodium silicate, sepiolite, sodium fluorosilicate, Bentonite, sodium tripolyphosphate and zinc oxide; a first panel, bonded to the first fireproof board through an organic adhesive; and a second panel, bonded to the second fireproof board through the organic adhesive fit. The long-lasting high-temperature-resistant plate body as claimed in claim 1, wherein the core plate contains cement, fly ash, bentonite, fiber, foaming agent, foam stabilizer and water. The long-lasting high-temperature-resistant board body as claimed in claim 1, wherein the first fireproof board is calcium silicate board, fiber cement board, magnesium oxide board or magnesium carbonate board. The long-lasting high-temperature-resistant panel as claimed in claim 1, wherein the organic adhesive includes polyurethane glue or acrylic glue. The long-lasting high-temperature-resistant plate body as claimed in claim 1, wherein the first panel is a steel plate. The long-lasting high-temperature-resistant board body as claimed in claim 1, wherein the second fireproof board is calcium silicate board, fiber cement board, magnesium oxide board or magnesium carbonate board. The long-lasting high-temperature-resistant plate body as claimed in claim 1, wherein the second panel is a steel plate. For example, the long-lasting high-temperature-resistant plate body of claim 1 has an overall thickness within 55 mm. For example, the long-lasting high-temperature-resistant plate body of claim 1, wherein the thickness of the core plate is 40mm~48mm.

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