Plate with fire extinguishing function

Abstract

The utility model provides a plate with a fire extinguishing function. The plate comprises a bonding layer, a glass fiber mica paper layer, a fluorine-containing fire extinguishing layer and a surface fire extinguishing layer which are sequentially stacked, and the fluorine-containing fire extinguishing layer has a honeycomb hollow net-shaped structure. The plate provided by the utility model is high in strength and easy to bend, and the gluing mode of the plate can meet the fire extinguishing requirements of places with different complicated structures; meanwhile, through the double-layer fire extinguishing design, the plate has a better fire extinguishing effect, a fire point is automatically cooled, oxygen and combustible matter are isolated at the fastest speed, fire hazards are extinguished in the initial stage of fire, and losses caused by fire disasters are reduced to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of new materials, and relates to a mica plate with a fire extinguishing function, in particular to a plate with a fire extinguishing function. Background Technique

[0002] A plate is a flat rectangular building material board made in standard size, which is applied to the construction industry and used as a component for walls, ceilings or floors.

[0003] At present, there is a fireproof plate in the construction field, which is mainly made of siliceous materials or calcareous materials, plus a certain amount of fiber materials, light bone materials, adhesives and additives, and then made into a decorative material through high pressure. It is used for the fireproof isolation of walls in building decoration. However, the fireproof plates in related technologies only have fireproof performance and only play a simple fireproof role for walls, and cannot help extinguish fires or delay the spread of fires.

[0004] CN 111268981A discloses a mica plate capable of extinguishing fire and a preparation method thereof. The mica plate includes: 60-70 parts of mixed powder and 30-40 parts of binder; wherein, the mixed powder, by weight, includes 65-75 parts of mica powder and 25-35 parts of vermiculite powder; the binder, by weight, includes 20-30 parts of quicklime powder and 70-80 parts of renewable plant pulp. This patent optimizes the mica plate to achieve the fire extinguishing effect of mica powder, but the mica plate has poor flexibility and cannot be bent, which is not conducive to installation.

[0005] CN 114382222A discloses a fire extinguishing type plate for ceiling. The fire extinguishing type plate includes a first plate body, a second plate body and a thermoplastic coating. A first chamber is defined inside the first plate body. The second plate body is movably arranged inside the first chamber and corresponds to an opening, and can open or close the opening. A second chamber is defined inside the second plate body; the thermoplastic coating is coated at the opening and can block the second plate body inside the first chamber; wherein, an inert gas is filled inside the first chamber, and a fire extinguishing powder is filled inside the second chamber. This patent realizes timely fire extinguishing through the adjustment of the plate structure and the limitation of the filling materials in the chamber. Its structure is relatively complex and difficult to install. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a plate with a fire extinguishing function. The plate with a fire extinguishing function has excellent strength and flexibility, can be made into any shape, and is easy to be adhesively fixed at various complex positions with potential fire hazards.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The present utility model provides a board with a fire extinguishing function, characterized in that the board comprises an adhesive layer, a fiberglass mica paper layer, a fluorine-containing fire extinguishing layer and a surface fire extinguishing layer which are laminated in sequence;

[0009] The fluorine-containing fire extinguishing layer has a honeycomb cavity network structure.

[0010] The board provided by the present utility model can be adhered to different complex-structured places through the adhesive layer and is easily fixed in different places with potential fire hazards; with a double-layer fire extinguishing design, the surface fire extinguishing layer is a rapid response layer, which can quickly respond to the initial ignition point, absorb heat under temperature induction, quickly respond to and cool down the ignition point, block the fire at the fastest speed, and then the fluorine-containing fire extinguishing layer can release fire extinguishing substances directionally to block the spread of the fire and achieve the purpose of extinguishing the fire.

[0011] As a preferred technical solution of the present utility model, the adhesive layer comprises a flame-retardant adhesive layer and a release paper layer;

[0012] Preferably, the flame-retardant adhesive layer is arranged between the release paper layer and the fiberglass mica paper layer.

[0013] As a preferred technical solution of the present utility model, the thickness of the fiberglass mica paper layer is 0.3 - 1.0 mm, for example, it can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1.0 mm, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0014] As a preferred technical solution of the present utility model, the thickness of the fluorine-containing fire extinguishing layer is 0.5 - 2 mm, for example, it can be 0.5 mm, 0.8 mm, 1.1 mm, 1.4 mm, 1.7 mm or 2 mm, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0015] Preferably, the thickness of the surface fire extinguishing layer is 0.5 - 3 mm, for example, it can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0016] As a preferred technical solution of the present utility model, the thickness of the flame-retardant adhesive layer is 30 - 80 μm, for example, it can be 30 μm, 40 μm, 50 μm, 60 μm, 70 μm or 80 μm, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0017] Preferably, the thickness of the release paper layer is 50 to 100 μm, for example, it can be 50 μm, 60 μm, 70 μm, 80 μm, 90 μm or 100 μm, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0018] As a preferred technical solution of the present utility model, the adhesive force of the flame-retardant adhesive layer > 25 N / 10 mm, for example, it can be 26 N / 10 mm, 27 N / 10 mm, 28 N / 10 mm, 29 N / 10 mm or 30 N / 10 mm, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0019] As a preferred technical solution of the present utility model, the fiberglass mica paper layer includes a fiberglass cloth layer and a mica paper layer.

[0020] As a preferred technical solution of the present utility model, the fiberglass cloth layer is disposed between the mica paper layer and the fluorine-containing fire extinguishing layer.

[0021] As a preferred technical solution of the present utility model, the grammage of the mica paper layer is 100 to 300 g / m 2 For example, it can be 100 g / m 2 、140 g / m 2 、180 g / m 2 、220 g / m 2 、260 g / m 2 、or 300 g / m 2 but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0022] As a preferred technical solution of the present utility model, the grammage of the fiberglass cloth layer is 200 to 400 g / m 2 For example, it can be 200 g / m 2 、240 g / m 2 、280 g / m 2 、320 g / m 2 、360 g / m 2 or 400 g / m 2 but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0023] Preferably, the thickness of the fiberglass cloth layer is 0.2 to 0.4 mm, for example, it can be 0.2 mm, 0.24 mm, 0.28 mm, 0.32 mm, 0.36 mm or 0.4 mm, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0024] It should be noted that during the use of the board of the present utility model, the release paper layer needs to be removed first, and then the flame-retardant adhesive layer is bonded to the surface of the wall to be installed.

[0025] In the present utility model, the preparation method of the board with fire extinguishing function comprises the following steps:

[0026] (1) Independently prepare a flame-retardant adhesive layer, a fluorine-containing fire-extinguishing slurry, and a surface fire-extinguishing slurry respectively;

[0027] (2) Coat the fluorine-containing fire-extinguishing slurry on the surface of the fiberglass cloth layer and perform a first heat treatment to obtain a fluorine-containing fire-extinguishing layer; then coat the surface fire-extinguishing slurry on the surface of the fluorine-containing fire-extinguishing layer and perform a second heat treatment to obtain a surface fire-extinguishing layer;

[0028] Fix the flame-retardant adhesive layer with the release paper attached to the surface of the mica paper layer to obtain the board with fire extinguishing function.

[0029] The preparation method of the board provided by the present utility model is simple, the board can be prepared into any shape, and mass production can be realized on a large scale.

[0030] In addition, the present utility model does not limit the fixing method described in step (2), as long as the mica paper layer and the flame-retardant adhesive layer can be tightly bonded.

[0031] As a preferred technical solution of the present utility model, by weight, the raw materials for preparing the flame-retardant adhesive layer in step (1) include: 68 - 85 parts of water-based adhesive and 15 - 30 parts of flame retardant;

[0032] Exemplarily, the weight of the water-based adhesive in the raw materials for preparing the flame-retardant adhesive layer is 68 - 85 parts, for example, it can be 68 parts, 70 parts, 74 parts, 78 parts, 82 parts or 85 parts, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0033] The weight of the flame retardant in the raw materials for preparing the flame-retardant adhesive layer is 15 - 30 parts, for example, it can be 15 parts, 18 parts, 21 parts, 24 parts, 27 parts or 30 parts, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0034] Preferably, the aqueous glue includes any one or a combination of at least two of polyvinyl alcohol-based aqueous adhesives, acrylic-based aqueous adhesives, polyurethane-based aqueous adhesives, or phenolic aqueous adhesives. Typical but non-limiting combinations include: a combination of polyvinyl alcohol-based aqueous adhesives and acrylic-based aqueous adhesives, a combination of polyvinyl alcohol-based aqueous adhesives, acrylic-based aqueous adhesives, and polyurethane-based aqueous adhesives, a combination of polyvinyl alcohol-based aqueous adhesives, acrylic-based aqueous adhesives, and phenolic aqueous adhesives, or a combination of polyvinyl alcohol-based aqueous adhesives, acrylic-based aqueous adhesives, polyurethane-based aqueous adhesives, and phenolic aqueous adhesives.

[0035] Preferably, the flame retardant includes any one of magnesium hydroxide, aluminum hydroxide, TCEP, TCPP, TDCPP, triphenyl phosphate, zinc borate, or ammonium polyphosphate.

[0036] As a preferred technical solution of the present invention, by weight, the raw materials for preparing the surface fire extinguishing slurry in step (1) include: 5-15 parts of bicarbonate, 35-55 parts of nitrate, 5-10 parts of stearate, 10-15 parts of hydrated silicate, 10-15 parts of linear phenolic resin, 10-20 parts of polyvinyl alcohol resin, and 100 parts of water.

[0037] Exemplarily, the weight of bicarbonate in the raw materials for preparing the surface fire extinguishing slurry is 5-15 parts, for example, it can be 5 parts, 7 parts, 9 parts, 11 parts, 13 parts, or 15 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0038] The weight of nitrate in the raw materials for preparing the surface fire extinguishing slurry is 35-55 parts, for example, it can be 35 parts, 40 parts, 45 parts, 50 parts, or 55 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0039] The weight of stearate in the raw materials for preparing the surface fire extinguishing slurry is 5-10 parts, for example, it can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, or 10 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0040] The weight of linear phenolic resin in the raw materials for preparing the surface fire extinguishing slurry is 10-15 parts, for example, it can be 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, or 15 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0041] The weight proportion of the polyvinyl alcohol resin in the raw materials for preparing the surface fire extinguishing slurry is 10 to 20 parts, for example, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts or 20 parts, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.

[0042] Preferably, the bicarbonate comprises any one of potassium bicarbonate, ammonium bicarbonate or sodium bicarbonate, or a combination of at least two thereof. Typical but non-limiting combinations include a combination of potassium bicarbonate and ammonium bicarbonate, a combination of potassium bicarbonate and sodium bicarbonate, a combination of ammonium bicarbonate and sodium bicarbonate, or a combination of potassium bicarbonate, ammonium bicarbonate and sodium bicarbonate.

[0043] Preferably, the nitrate comprises potassium nitrate and / or ammonium nitrate.

[0044] Preferably, the stearate comprises calcium stearate and / or magnesium stearate.

[0045] Preferably, the method for preparing the surface fire extinguishing slurry comprises: mixing the raw materials for preparing the surface fire extinguishing slurry according to the formula amount, and then stirring.

[0046] Preferably, the rotation speed of the stirring treatment is 300-800 r / min, for example, it can be 300 r / min, 400 r / min, 500 r / min, 600 r / min, 700 r / min or 800 r / min, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.

[0047] Preferably, the stirring treatment time is 15 to 45 minutes, for example, 15 minutes, 20 minutes, 30 minutes, 40 minutes or 45 minutes, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.

[0048] As a preferred technical solution of the utility model, the raw materials for preparing the fluorine-containing fire extinguishing slurry in step (1) include, by weight: 8 to 15 parts of a cross-linking agent, 7 to 10 parts of a resin, 60 to 80 parts of a fluorine-containing fire extinguishing agent and polytetrafluoroethylene powder.

[0049] Exemplarily, the weight proportion of the crosslinking agent in the raw materials for preparing the fluorine-containing fire extinguishing slurry is 8 to 15 parts, for example, 8 parts, 10 parts, 12 parts, 14 parts or 15 parts, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.

[0050] The weight proportion of the resin in the raw material for preparing the fluorine-containing fire extinguishing slurry is 7 to 10 parts, for example, 7 parts, 8 parts, 9 parts or 7 parts, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.

[0051] In the raw materials for preparing the fluorine-containing fire extinguishing slurry, the weight fraction of the fluorine-containing fire extinguishing agent is 60 to 80 parts. For example, it can be 60 parts, 64 parts, 68 parts, 72 parts, 76 parts or 80 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0052] Preferably, the mass ratio of the polytetrafluoroethylene micropowder to the fluorine-containing fire extinguishing agent is 1:3 to 9. For example, it can be 1:3, 1:4, 1:5, 1:6, 1:7, 1:8 or 1:9, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0053] Preferably, the crosslinking agent includes any one or a combination of at least two of isocyanate, diethylaminopropylamine or polycarbodiimide. Typical but non-limiting combinations include: the combination of isocyanate and diethylaminopropylamine, the combination of diethylaminopropylamine and polycarbodiimide, the combination of isocyanate and polycarbodiimide, or the combination of isocyanate, diethylaminopropylamine and polycarbodiimide.

[0054] Preferably, the resin includes polyurea and / or polyurethane.

[0055] Preferably, the fluorine-containing fire extinguishing agent includes perfluoroketone or heptafluoropropane.

[0056] As a preferred technical solution of the present invention, the method for preparing the fluorine-containing fire extinguishing slurry includes:

[0057] (a) Adsorbing the fluorine-containing fire extinguishing agent with the polytetrafluoroethylene micropowder to obtain adsorption particles;

[0058] (b) Immersing the adsorption particles obtained in step (a) in a resin containing a crosslinking agent, and stirring to obtain the fluorine-containing fire extinguishing slurry.

[0059] In the present invention, through heat treatment at a certain temperature, the water in the fluorine-containing slurry evaporates rapidly, forming a porous honeycomb structure; more specifically, the present invention realizes the formation of a porous network structure in the fluorine-containing fire extinguishing layer through the first heat treatment.

[0060] As a preferred technical solution of the present invention, the average particle size of the polytetrafluoroethylene micropowder in step (a) is 1 to 5 μm. For example, it can be 1 μm, 2 μm, 3 μm, 4 μm or 5 μm, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0061] Preferably, the environmental pressure for adsorption in step (a) is 0.1 to 0.5 MPa. For example, it can be 0.1 MPa, 0.2 MPa, 0.3 MPa, 0.4 MPa or 0.5 MPa, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0062] In the present utility model, when the types of the fluorine-containing fire extinguishing agents are different, the environmental pressures during the adsorption process are also different; when the fluorine-containing fire extinguishing agent is selected as heptafluoropropane, the environmental pressure for adsorption is 0.2 to 0.5 MPa; when the fluorine-containing fire extinguishing agent is selected as perfluorohexanone, the environmental pressure for adsorption is normal pressure.

[0063] Preferably, the stirring time in step (b) is 10 to 30 min, for example, it can be 10 min, 14 min, 18 min, 22 min, 26 min or 30 min, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0064] Preferably, the stirring speed in step (b) is 300 to 800 r / min, for example, it can be 300 r / min, 400 r / min, 500 r / min, 600 r / min, 700 r / min or 800 r / min, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0065] Preferably, the thickness of the coating layer of the particles in the fluorine-containing fire extinguishing slurry is 1 to 3 μm, for example, it can be 1 μm, 1.4 μm, 1.8 μm, 2.2 μm, 2.6 μm or 3 μm, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0066] As a preferred technical solution of the present utility model, the temperature of the first heat treatment in step (2) is 75 to 95 °C, for example, it can be 75 °C, 80 °C, 85 °C, 90 °C or 95 °C, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0067] Preferably, the time of the first heat treatment is 0.5 to 2 min, for example, it can be 0.5 min, 0.8 min, 1.1 min, 1.4 min, 1.7 min or 2 min, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0068] Preferably, the temperature of the second heat treatment is 70 to 90 °C, for example, it can be 70 °C, 75 °C, 80 °C, 85 °C or 90 °C, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0069] Preferably, the time of the second heat treatment is 1 to 3 min, for example, it can be 1 min, 1.5 min, 2 min, 2.5 min or 3 min, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0070] As a preferred technical solution of the present utility model, the preparation method of the fire-extinguishing plate provided in the second aspect of the present utility model includes the following steps:

[0071] (1) Independently prepare a flame-retardant adhesive layer, a fluorine-containing fire-extinguishing slurry, and a surface fire-extinguishing slurry respectively;

[0072] Among them, the raw materials for preparing the flame-retardant adhesive layer include: 68-85 parts of water-based adhesive and 15-30 parts of flame retardant;

[0073] The preparation method of the surface fire-extinguishing slurry includes: mixing 5-15 parts of bicarbonate, 35-55 parts of nitrate, 5-10 parts of stearate, 10-15 parts of hydrated silicate, 10-15 parts of linear phenolic resin, 10-20 parts of polyvinyl alcohol resin, and 100 parts of water, and then carrying out stirring treatment at a rotation speed of 300-800 r / min for 15-45 min;

[0074] The preparation method of the fluorine-containing fire-extinguishing slurry includes: (a) Under an environmental pressure of 0.1-0.5 MPa, adsorb a fluorine-containing fire extinguishing agent with polytetrafluoroethylene micropowder with an average particle size of 1-5 μm to obtain adsorption particles; the mass ratio of the polytetrafluoroethylene micropowder to the fluorine-containing fire extinguishing agent is 1:3-9; the weight fraction of the fluorine-containing fire extinguishing agent is 60-80 parts;

[0075] (b) Immerse the adsorption particles obtained in step (a) in a resin containing a crosslinking agent, stir at a rotation speed of 300-800 r / min for 10-30 min to obtain a fluorine-containing fire-extinguishing slurry; among them, the weight fraction of the crosslinking agent is 8-15 parts, and the weight fraction of the resin is 7-10 parts; the thickness of the coating layer of the particles in the fluorine-containing fire-extinguishing slurry is 1-3 μm;

[0076] (2) Coat the fluorine-containing fire-extinguishing slurry on the surface of the fiberglass cloth layer and perform a first heating treatment at 75-95 °C for 0.5-2 min to obtain a fluorine-containing fire-extinguishing layer; then coat the surface fire-extinguishing slurry on the surface of the fluorine-containing fire-extinguishing layer and perform a second heating treatment at 70-90 °C for 1-3 min to obtain a surface fire-extinguishing layer;

[0077] Fix the flame-retardant adhesive layer adhered with release paper to the surface of the mica paper layer to obtain the fire-extinguishing plate with fire extinguishing function.

[0078] Compared with the prior art, the beneficial effects of the present utility model are:

[0079] (1) The board provided by the present utility model has a double-layer fire extinguishing structure. In the initial stage of a fire, the surface fire extinguishing material reacts endothermically under temperature induction, quickly responds to the ignition point to cool down the temperature, blocks the fire at the fastest speed, and then the fluorine-containing fire extinguishing layer with a honeycomb cavity network structure can release fire extinguishing substances in a directional manner to block the spread of the fire. Through the double-layer fire extinguishing structure design, a faster and better fire extinguishing effect is achieved;

[0080] (2) The board material provided by the present utility model has high strength and good flexibility, can be bent, can be made into any shape, and is easy to be fixed at various complex positions with potential fire hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 It is a schematic structural diagram of a board with a fire extinguishing function provided in Embodiment 1 of the present utility model;

[0082] Wherein: 1 is an adhesive layer, 1-1 is a release paper layer, 1-2 is a flame retardant adhesive layer, 2 is a fiberglass mica paper layer, 2-2 is a fiberglass cloth layer, 2-1 is a mica paper layer, 3 is a fluorine-containing fire extinguishing layer, and 4 is a surface fire extinguishing layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0083] It should be understood that in the description of the present utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0084] It should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "set", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0085] The technical solution of the present utility model will be further described below with reference to the drawings and through specific embodiments.

[0086] Embodiment 1

[0087] This embodiment provides a kind of as Figure 1The plate with a fire extinguishing function shown, the plate includes an adhesive layer 1, a fiberglass mica paper layer 2, a fluorine-containing fire extinguishing layer 3, and a surface fire extinguishing layer 4 that are stacked in sequence; the fluorine-containing fire extinguishing layer 3 has a honeycomb cavity network structure.

[0088] The adhesive layer 1 includes a flame retardant glue layer 1-2 and a release paper layer 1-1; the flame retardant glue layer 1-2 is arranged between the release paper layer 1-1 and the fiberglass mica paper layer 2;

[0089] The thickness of the fiberglass mica paper layer 2 is 0.55 mm; the thickness of the fluorine-containing fire extinguishing layer 3 is 1.25 mm; the thickness of the surface fire extinguishing layer 4 is 1.75 mm;

[0090] The thickness of the flame retardant glue layer 1-2 is 55 μm; the thickness of the release paper layer 1-1 is 75 μm; the bonding force of the flame retardant glue layer 1-2 is 30 N / 10 mm;

[0091] The fiberglass mica paper layer 2 includes a fiberglass cloth layer 2-2 and a mica paper layer 2-1; the fiberglass cloth layer 2-2 is arranged between the mica paper layer 2-1 and the fluorine-containing fire extinguishing layer 3;

[0092] The grammage of the mica paper layer 2-1 is 200 g / m 2 ; the grammage of the fiberglass cloth layer 2-2 is 300 g / m 2 ; the thickness of the fiberglass cloth layer 2-2 is 0.3 mm.

[0093] The preparation method of the plate with a fire extinguishing function includes the following steps:

[0094] (1) Independently prepare a flame retardant glue layer, a fluorine-containing fire extinguishing slurry, and a surface fire extinguishing slurry respectively;

[0095] Among them, the raw materials for preparing the flame retardant glue layer include: 80 parts of water-based glue (polyvinyl alcohol-based water-based adhesive) and 20 parts of flame retardant (magnesium hydroxide);

[0096] The preparation method of the surface fire extinguishing slurry includes: mixing 10 parts of potassium bicarbonate, 45 parts of potassium nitrate, 7.5 parts of calcium stearate, 12.5 parts of hydrous silicate, 12.5 parts of linear phenolic resin, 15 parts of polyvinyl alcohol resin, and 100 parts of water, and then stirring at a speed of 550 r / min for 30 min;

[0097] The preparation method of the fluorine-containing fire extinguishing slurry includes: (a) Under an ambient pressure of 0.3 MPa, 15 parts by weight of polytetrafluoroethylene micropowder with an average particle size of 3 μm adsorbs 60 parts by weight of heptafluoropropane to obtain adsorption particles; (b) The adsorption particles obtained in step (a) are impregnated in a resin containing a crosslinking agent and stirred at a speed of 550 r / min for 20 min to obtain the fluorine-containing fire extinguishing slurry; wherein, the weight part of the crosslinking agent (isocyanate) is 20 parts, and the weight part of the resin (polyurea) is 8.5 parts; the thickness of the coating layer of the particles in the fluorine-containing fire extinguishing slurry is 2 μm;

[0098] (2) Coat the fluorine-containing fire extinguishing slurry on the surface of the fiberglass cloth layer and perform a first heating and drying treatment at 80 °C for 1.5 min to obtain a fluorine-containing fire extinguishing layer; then coat the surface fire extinguishing slurry on the surface of the fluorine-containing fire extinguishing layer and perform a second heating and drying treatment at 80 °C for 2 min to obtain a surface fire extinguishing layer;

[0099] Fix the flame-retardant adhesive layer with the release paper adhered thereto to the surface of the mica paper layer to obtain the fireproof board with a fire extinguishing function.

[0100] Example 2

[0101] This example provides a fireproof board with a fire extinguishing function. The board includes a bonding layer 1, a fiberglass mica paper layer 2, a fluorine-containing fire extinguishing layer 3, and a surface fire extinguishing layer 4 that are laminated in sequence; the fluorine-containing fire extinguishing layer 3 has a honeycomb cavity network structure.

[0102] The bonding layer 1 includes a flame-retardant adhesive layer 1-2 and a release paper layer 1-1; the flame-retardant adhesive layer 1-2 is disposed between the release paper layer 1-1 and the fiberglass mica paper layer 2;

[0103] The thickness of the fiberglass mica paper layer 2 is 0.3 mm; the thickness of the fluorine-containing fire extinguishing layer 3 is 0.5 mm; the thickness of the surface fire extinguishing layer 4 is 0.5 mm;

[0104] The thickness of the flame-retardant adhesive layer 1-2 is 30 μm; the thickness of the release paper layer 1-1 is 50 μm; the bonding force of the flame-retardant adhesive layer 1-2 is 40 N / 10 mm;

[0105] The fiberglass mica paper layer 2 includes a fiberglass cloth layer 2-2 and a mica paper layer 2-1; the fiberglass cloth layer 2-2 is disposed between the mica paper layer 2-1 and the fluorine-containing fire extinguishing layer 3;

[0106] The grammage of the mica paper layer 2-1 is 100 g / m 2 ; the grammage of the fiberglass cloth layer 2-2 is 200 g / m 2 ; the thickness of the fiberglass cloth layer 2-2 is 0.2 mm.

[0107] The preparation method of the fire-extinguishing functional board comprises the following steps:

[0108] (1) Independently prepare a flame-retardant adhesive layer, a fluorine-containing fire-extinguishing slurry, and a surface fire-extinguishing slurry respectively;

[0109] Among them, the raw materials for preparing the flame-retardant adhesive layer include: 68 parts of water-based glue (phenolic water-based adhesive) and 15 parts of flame retardant (TDCPP flame retardant);

[0110] The preparation method of the surface fire-extinguishing slurry includes: mixing 5 parts of ammonium bicarbonate, 35 parts of ammonium nitrate, 5 parts of magnesium stearate, 10 parts of hydrated silicate, 10 parts of linear phenolic resin, 10 parts of polyvinyl alcohol resin, and 100 parts of water, and then stirring at a speed of 300 r / min for 45 min;

[0111] The preparation method of the fluorine-containing fire-extinguishing slurry includes: (a) Under an environmental pressure of 0.5 MPa, adsorb 80 parts by weight of heptafluoropropane with 20 parts by weight of polytetrafluoroethylene micropowder with an average particle size of 1 μm to obtain adsorption particles;

[0112] (b) Immerse the adsorption particles obtained in step (a) in a resin containing a cross-linking agent, stir at a speed of 300 r / min for 30 min to obtain a fluorine-containing fire-extinguishing slurry; among them, the weight part of the cross-linking agent (diethylaminopropylamine) is 8 parts, and the weight part of the resin (polyurethane) is 7 parts; the thickness of the particle coating layer in the fluorine-containing fire-extinguishing slurry is 1 μm;

[0113] (2) Coat the fluorine-containing fire-extinguishing slurry on the surface of the fiberglass cloth layer and perform a first heating treatment at 75 °C for 2 min to obtain a fluorine-containing fire-extinguishing layer; then coat the surface fire-extinguishing slurry on the surface of the fluorine-containing fire-extinguishing layer and perform a second heating treatment at 70 °C for 3 min to obtain a surface fire-extinguishing layer;

[0114] Fix the flame-retardant adhesive layer adhered with release paper to the surface of the mica paper layer to obtain the fire-extinguishing functional board.

[0115] Example 3

[0116] This example provides a fire-extinguishing functional board, which includes an adhesive layer 1, a fiberglass mica paper layer 2, a fluorine-containing fire-extinguishing layer 3, and a surface fire-extinguishing layer 4 stacked in sequence; the fluorine-containing fire-extinguishing layer 3 has a honeycomb cavity network structure.

[0117] The adhesive layer 1 includes a flame-retardant adhesive layer 1-2 and a release paper layer 1-1; the flame-retardant adhesive layer 1-2 is arranged between the release paper layer 1-1 and the fiberglass mica paper layer 2;

[0118] The thickness of the fiberglass mica paper layer 2 is 0.8 mm; the thickness of the fluorine-containing fire extinguishing layer 3 is 2 mm; the thickness of the surface fire extinguishing layer 4 is 3 mm;

[0119] The thickness of the flame retardant adhesive layer 1-2 is 80 μm; the thickness of the release paper layer 1-1 is 100 μm; the adhesive force of the flame retardant adhesive layer 1-2 is 27 N / 10 mm;

[0120] The fiberglass mica paper layer 2 includes a fiberglass cloth layer 2-2 and a mica paper layer 2-1; the fiberglass cloth layer 2-2 is disposed between the mica paper layer 2-1 and the fluorine-containing fire extinguishing layer 3;

[0121] The grammage of the mica paper layer 2-1 is 300 g / m 2 ; the grammage of the fiberglass cloth layer 2-2 is 400 g / m 2 ; the thickness of the fiberglass cloth layer 2-2 is 0.4 mm.

[0122] The preparation method of the fire extinguishing functional board includes the following steps:

[0123] (1) Independently prepare a flame retardant adhesive layer, a fluorine-containing fire extinguishing slurry, and a surface fire extinguishing slurry respectively;

[0124] Among them, the raw materials for preparing the flame retardant adhesive layer include: 85 parts of water-based glue (polyurethane-based water-based adhesive) and 30 parts of flame retardant (TCEP flame retardant);

[0125] The preparation method of the surface fire extinguishing slurry includes: mixing 15 parts of sodium bicarbonate, 55 parts of potassium nitrate, 10 parts of calcium stearate, 15 parts of hydrous silicate, 15 parts of linear phenolic resin, 20 parts of polyvinyl alcohol resin, and 100 parts of water, and then stirring at a speed of 800 r / min for 15 min;

[0126] The preparation method of the fluorine-containing fire extinguishing slurry includes: (a) Under an environmental pressure of 0.1 MPa, 10 parts by weight of polytetrafluoroethylene micro-powder with an average particle size of 5 μm adsorbs 70 parts by weight of perfluoromethylcyclohexanone to obtain adsorption particles;

[0127] (b) Immerse the adsorption particles obtained in step (a) in a resin containing a cross-linking agent, stir at a speed of 800 r / min for 10 min to obtain a fluorine-containing fire extinguishing slurry; among them, the weight fraction of the cross-linking agent (polycarbodiimide) is 15 parts, and the weight fraction of the resin (polyurea) is 10 parts; the thickness of the coating layer of the particles in the fluorine-containing fire extinguishing slurry is 3 μm;

[0128] (2) Coat the fluorine-containing fire extinguishing slurry on the surface of the fiberglass cloth layer and perform a first heat treatment at 95 °C for 0.5 min to obtain a fluorine-containing fire extinguishing layer; then coat the surface fire extinguishing slurry on the surface of the fluorine-containing fire extinguishing layer and perform a second heat treatment at 90 °C for 1 min to obtain a surface fire extinguishing layer;

[0129] Fix the flame-retardant adhesive layer adhered with release paper to the surface of the mica paper layer to obtain the fire extinguishing functional board.

[0130] Example 4

[0131] This example provides a fire extinguishing functional board, and the difference between this board and that of Example 1 is only that:

[0132] In this example, the thickness of the fluorine-containing fire extinguishing layer 3 is adjusted to 0.3 mm.

[0133] The preparation method of the fire extinguishing functional board in this example is the same as that in Example 1.

[0134] Example 5

[0135] This example provides a fire extinguishing functional board, and the difference between this board and that of Example 1 is only that:

[0136] In this example, the thickness of the fluorine-containing fire extinguishing layer 3 is adjusted to 3 mm.

[0137] The preparation method of the fire extinguishing functional board in this example is the same as that in Example 1.

[0138] Example 6

[0139] This example provides a fire extinguishing functional board, and the difference between this board and that of Example 1 is only that:

[0140] In this example, the thickness of the surface fire extinguishing layer 4 is adjusted to 0.2 mm.

[0141] The preparation method of the fire extinguishing functional board in this example is the same as that in Example 1.

[0142] Example 7

[0143] This example provides a fire extinguishing functional board, and the difference between this board and that of Example 1 is only that:

[0144] In this example, the thickness of the surface fire extinguishing layer 4 is adjusted to 4 mm.

[0145] The preparation method of the fire extinguishing functional board in this example is the same as that in Example 1.

[0146] Comparative Example 1

[0147] This comparative example provides a fireproof board, and the difference between this board and that of Example 1 is only that:

[0148] This comparative example omits the fluorine-containing fire extinguishing layer 3.

[0149] Comparative Example 2

[0150] This comparative example provides a fireproof board, and the difference between this board and that of Example 1 is only that:

[0151] This comparative example omits the surface fire extinguishing layer 4.

[0152] Performance detection:

[0153] Detect the stability and fire extinguishing time of the boards provided in the above examples and comparative examples at a temperature of 100 °C within 30 minutes. The results are shown in Table 1.

[0154] Table 1

[0155] Stability / % Fire extinguishing time / s Example 1 99 2.5 Example 2 98 2 Example 3 98 2.5 Example 4 98 4 Example 5 97 3 Example 6 99 6 Example 7 97 5 Comparative Example 1 90 10 Comparative Example 2 91 12

[0156] It can be seen from Table 1 that:

[0157] (1) Through comprehensive analysis of Examples 1-3, it can be known that the board provided by the present utility model has excellent stability and can achieve rapid fire extinguishing;

[0158] (2) Through comprehensive analysis of Example 1 and Examples 4-7, it can be known that the thicknesses of the fluorine-containing fire extinguishing layer and the surface fire extinguishing layer in the board will affect the fire extinguishing effect of the board;

[0159] Among them, when the fluorine-containing fire extinguishing layer is too thin (such as in Example 4), the fire extinguishing time will be prolonged; when the fluorine-containing fire extinguishing layer is too thick (such as in Example 5), the stability of the board will be reduced;

[0160] When the surface fire extinguishing layer is too thin (such as in Example 6), the fire extinguishing time will be prolonged; when the surface fire extinguishing layer is too thick (such as in Example 7), the stability of the board will be reduced;

[0161] (3) Through comprehensive analysis of Example 1 and Comparative Examples 1-2, it can be known that both the fluorine-containing fire extinguishing layer and the surface fire extinguishing layer will affect the stability and fire extinguishing effect of the board. Omitting any one of them will reduce the stability of the board and prolong the fire extinguishing time.

[0162] In summary, the sheet material provided by the present utility model has high strength, good flexibility, can be bent, can be made into any shape, and is easy to be fixed at various complex positions with fire hazards; in addition, the sheet has a double-layer fire extinguishing structure. In the initial stage of a fire, the surface fire extinguishing material reacts and absorbs heat under temperature induction, quickly responds to and cools the ignition point, blocks the fire at the fastest speed, and then the fluorine-containing fire extinguishing layer with a honeycomb cavity network structure can release fire extinguishing substances in a directional manner to block the spread of the fire. Through the double-layer fire extinguishing structure design, a faster and better fire extinguishing effect is achieved.

[0163] The applicant declares that the above description is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed by the present utility model fall within the protection scope and the public disclosure scope of the present utility model.

Claims

1. A board with a fire extinguishing function, characterized in that, The plate material includes an adhesive layer, a fiberglass mica paper layer, a fluorine-containing fire extinguishing layer, and a surface fire extinguishing layer that are laminated in sequence; The fluorine-containing fire extinguishing layer has a honeycomb cavity network structure.

2. The fire-extinguishing function-equipped board according to claim 1, wherein The adhesive layer includes a flame retardant adhesive layer and a release paper layer; The flame retardant adhesive layer is arranged between the release paper layer and the fiberglass mica paper layer.

3. The fire-extinguishing function-equipped board according to claim 1, characterized in that, The thickness of the fiberglass mica paper layer is 0.3 - 1.0 mm.

4. The fire-extinguishing function-equipped board according to claim 1, wherein, The thickness of the fluorine-containing fire extinguishing layer is 0.5 - 2 mm; The thickness of the surface fire extinguishing layer is 0.5 - 3 mm.

5. The fire-extinguishing function-equipped board according to claim 2, characterized in that, The thickness of the flame retardant adhesive layer is 30 - 80 μm; The thickness of the release paper layer is 50 - 100 μm.

6. The fire-extinguishing function-equipped board according to claim 2, wherein, The adhesive force of the flame retardant adhesive layer > 8 N / 25 mm.

7. The fire-extinguishing function-equipped board according to claim 1, wherein The fiberglass mica paper layer includes a fiberglass cloth layer and a mica paper layer.

8. The fire-extinguishing function-equipped board according to claim 7, wherein, The fiberglass cloth layer is arranged between the mica paper layer and the fluorine-containing fire extinguishing layer.

9. The fire-extinguishing function-equipped board according to claim 7, characterized in that, The grammage of the mica paper layer is 100 to 300 g / m 2 .

10. The fire-extinguishing function-equipped board according to claim 7, wherein The grammage of the glass fiber cloth layer is 200-400 g / m 2 ; The thickness of the fiberglass cloth layer is 0.2 - 0.4 mm.

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