Self-flame-retardant efficient fire extinguishing adhesive tape sheet

Abstract

The utility model discloses a self-flame-retardant efficient fire-extinguishing adhesive tape sheet which comprises a flame-retardant adhesive tape sheet, a fire-extinguishing layer and a flame-retardant protective layer which are sequentially arranged from the bottom layer to the surface layer, flame-retardant materials are arranged in each layer structure, and the flame-retardant grade of the fire-extinguishing adhesive tape sheet is remarkably improved, so that each part of the fire-extinguishing adhesive tape sheet can be prevented from spontaneous combustion when a fire disaster occurs; and a flame-retardant effect can also be achieved. Wherein perfluorohexanone microbeads in the fire extinguishing layer are densely distributed in flame-retardant filling adhesive cement, after high-temperature wall breaking, gas rushes out along a crevasse and rapidly reaches a fire point, the effect of rapid fire extinguishing is achieved, the density of the perfluorohexanone microbeads is close to a saturated state, and the fire extinguishing efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing materials, in particular to a self-flaming retardant and high-efficiency fire extinguishing tape sheet. Background Art

[0002] Perfluorohexanone, an emerging green and environmentally friendly fire extinguishing agent, leverages its unique properties, such as high heat capacity and high specific heat, to absorb and remove large amounts of heat in a very short period of time, rapidly reducing the temperature of the fire source and thus extinguishing the fire. However, despite attempts to apply perfluorohexanone in the form of fire-extinguishing patches, these products still suffer from poor fire-extinguishing effectiveness, low efficiency, and the potential for spontaneous combustion in actual use. This is primarily due to the irrational design of existing fire-extinguishing patches, such as the perfluorohexanone content, distribution, and release method, which prevents perfluorohexanone from fully realizing its fire-extinguishing potential. Utility Model Content

[0003] The purpose of the utility model is to provide a self-flame retardant and high-efficiency fire extinguishing tape sheet, which has high-efficiency fire extinguishing and flame retardant properties, can effectively extinguish early fires, and at the same time has high flame retardant properties, greatly enhancing the safety of various products.

[0004] To achieve the above-mentioned purpose, the solution of the present invention is: a self-flaming retardant and high-efficiency fire extinguishing tape sheet, comprising a flame-retardant tape sheet, a fire extinguishing layer and a flame-retardant protective layer arranged in sequence from the bottom layer to the surface layer, and each layer structure is provided with a flame-retardant material;

[0005] The fire extinguishing layer is attached to the adhesive surface of the flame retardant tape sheet, and the fire extinguishing layer includes a flame retardant filling adhesive layer and a plurality of perfluorohexanone microbeads with a particle size of 350 μm to 1200 μm. The perfluorohexanone microbeads are embedded and densely distributed on the flame retardant filling adhesive layer, and the bead walls of adjacent perfluorohexanone microbeads are closely attached. The thickness of the flame retardant filling adhesive layer is consistent with the particle size of the perfluorohexanone microbeads.

[0006] The flame retardant protective layer is attached to the top of the fire extinguishing layer, and the thickness of the flame retardant protective layer is in the range of 5 to 25 μm.

[0007] Furthermore, in the same fire extinguishing layer, the particle size difference of the perfluorohexanone microbeads is less than or equal to 10 μm.

[0008] Furthermore, the wall breaking temperature range of the perfluorohexanone microbeads is 80°C to 160°C.

[0009] Furthermore, in the fire extinguishing layer, the glue in the flame retardant filling adhesive layer is selected from acrylic acid, silicone, phenolic resin, furan resin, polyurethane, acrylic or epoxy resin.

[0010] Furthermore, the self-flame retardant and high-efficiency fire extinguishing tape sheet is provided with multiple fire extinguishing layers, and the particle size of the perfluorohexanone microbeads gradually decreases from the bottom layer to the surface layer.

[0011] Furthermore, the flame retardant tape sheet includes a tape sheet base material layer and a flame retardant adhesive layer, and the flame retardant adhesive layer is attached to both sides of the tape sheet base material layer.

[0012] Furthermore, in the flame retardant tape sheet, the tape sheet base material layer is made of high-performance flame retardant materials, including flame retardant tissue paper, flame retardant PET, flame retardant PC, PVC, silicone tape sheet, flame retardant foam and aluminum foil.

[0013] Furthermore, in the flame retardant tape sheet, the thickness of each flame retardant adhesive layer ranges from 15 μm to 100 μm.

[0014] Furthermore, the types of the flame retardant protective layer include a non-sticky flame retardant protective adhesive layer, an adhesive flame retardant protective adhesive layer and a molded flame retardant film.

[0015] Furthermore, the flame retardant tape sheet is provided with a release layer for protecting the adhesive surface and preventing adhesion.

[0016] After adopting the above solution, the self-flammability retardant and high-efficiency fire extinguishing tape of the utility model has the following beneficial effects:

[0017] With the exception of the release material and perfluorohexanone microbeads, which are discarded during use, all other components of this self-flammable, high-efficiency fire-extinguishing tape are made of highly effective fire-retardant materials, significantly improving its flame retardancy. This ensures that in the event of a fire, the various parts of the fire-extinguishing tape will not spontaneously combust, while also providing a flame retardant effect.

[0018] The fire extinguishing layer is composed of tightly packed perfluorohexanone microbeads and a flame-retardant filler adhesive. The dense distribution of the perfluorohexanone microbeads ensures a near-saturated density, enabling rapid and efficient extinguishing of incipient fires. Furthermore, because the adhesive tightly encases the perfluorohexanone microbeads on all sides except the top, the intense heat of the flames causes the perfluorohexanone microbeads to break through the barrier, allowing the gas to be ejected from the top in a controlled manner. This prevents spraying within the tape, which could affect extinguishing distance and efficiency, while achieving targeted fire extinguishing.

[0019] The flame-retardant protective layer on top of the fire-extinguishing layer provides flame retardancy, heat insulation, and anti-extrusion properties, effectively protecting the perfluorohexanone microbeads and preventing them from prematurely breaking through the wall and losing their fire-extinguishing properties. Furthermore, the thickness of the flame-retardant protective layer is controlled between 5 and 25 μm, protecting the perfluorohexanone microbeads without affecting their gas ejection efficiency.

[0020] During the production process, each layer uses materials that can be fused with each other. After the materials are dried, they are tightly combined to form an integrated whole. Compared with the existing technology of laminating double-sided tape in the later stage, the bonding strength of each component is greatly improved, and various problems caused by the loose adhesion of double-sided tape are effectively eliminated.

[0021] This new self-flaming, high-efficiency fire-extinguishing tape not only provides effective preventative measures against potential heating, combustion, and even explosion hazards in the new energy industry, but can also be applied to various electrical facilities within the State Grid to ensure power safety. It is also suitable for fire protection of electrical equipment within distribution boxes in factories, businesses, and homes, as well as for office and household appliances, significantly enhancing safety in these environments. Furthermore, this fire-extinguishing tape also plays an indispensable role in the security of communications facilities, such as 4G / 5G base stations, providing a solid foundation for the stable operation of communications networks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the layered structure of the self-flaming retardant and high-efficiency fire extinguishing tape of the utility model (single-layer fire extinguishing layer);

[0023] Figure 2 This is a schematic diagram of densely distributed perfluorohexanone microbeads on the fire extinguishing layer of the utility model self-flammability retardant high-efficiency fire extinguishing tape;

[0024] Figure 3 This is a schematic diagram of the layered structure of the self-flaming retardant and high-efficiency fire extinguishing tape of the utility model (multi-layer fire extinguishing layer).

[0025] Description of labels:

[0026] 1. Release layer;

[0027] 2. Flame retardant adhesive tape; 21. First flame retardant adhesive layer; 22. Adhesive tape base material layer; 23. Second flame retardant adhesive layer;

[0028] 3. Fire extinguishing layer; 31. Flame retardant filling rubber layer; 32. Perfluorohexanone microbeads; 301. First fire extinguishing layer; 302. Second fire extinguishing layer; 303. Third fire extinguishing layer;

[0029] 4. Flame retardant protective layer. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The utility model provides a self-flaming retardant high-efficiency fire extinguishing tape sheet, such as Figure 1 As shown, it includes a release layer 1, a flame retardant tape sheet 2, a fire extinguishing layer 3 and a flame retardant protective layer 4 arranged in sequence from the bottom layer to the surface layer, and each layer structure is provided with flame retardant material.

[0032] The release layer 1 is used to protect the adhesive surface and prevent sticking, which is beneficial for the winding, stacking and placement of the fire extinguishing tape. The release layer 1 can be made of release paper, release film or other releasable materials, which can be selected according to different requirements of the application and method of use.

[0033] The flame retardant tape piece 2 has a very high adhesive property and can be firmly adhered to the surface of the material for a long time. It also has a flame retardant effect and its flame retardant grade reaches the UL94 V0 standard.

[0034] The flame-retardant tape sheet 2 comprises a first flame-retardant adhesive layer 21, a tape sheet base material layer 22, and a second flame-retardant adhesive layer 23. The tape sheet base material layer 22 serves as the base material for the flame-retardant tape sheet 2. Depending on the application requirements, high-performance flame-retardant materials such as flame-retardant tissue paper, flame-retardant PET, flame-retardant PC, PVC, silicone tape, flame-retardant foam, and aluminum foil can be selected to ensure flame retardancy without supporting combustion.

[0035] The first and second flame-retardant adhesive layers 21 and 23 are located on either side of the tape substrate layer 22. These layers are formed by curing a high-viscosity flame-retardant adhesive, a mixture of high-performance glue, nitrogen-phosphorus flame-retardant powder, liquid octyl phosphate flame retardant, and a curing agent. The high-performance adhesive can be made from one or more of pure acrylic, silicone, phenolic resin, furan resin, polyurethane, acrylic, and epoxy resin. The dry adhesive thickness of the flame-retardant layers is controlled to be between 15 and 100 μm.

[0036] Nitrogen-phosphorus flame retardant powders may include, but are not limited to, melamine cyanurate (MCA), spirophosphorylphenyl melamine ester (SPDAPT), and the like;

[0037] The liquid octyl phosphate flame retardant may be trioctyl phosphate, phosphate ester, phosphonate flame retardant, etc., but is not limited thereto.

[0038] The first flame-retardant adhesive layer 21 of the flame-retardant tape sheet 2 is the bottommost adhesive layer, intended for bonding to the surface of the intended use. The thickness of this adhesive layer is preferably controlled between 35 μm and 80 μm, depending on the desired bonding surface strength. The tape sheet's base material layer 22 provides support and increases tensile strength. The second flame-retardant adhesive layer 23 is used to bond to the fire-extinguishing layer 3. The thickness of this adhesive layer is preferably controlled between 15 μm and 30 μm.

[0039] The fire extinguishing layer 3, facing the object that needs to be extinguished (hereinafter referred to as the fire point), is composed of a flame retardant filling rubber layer 31 and densely distributed perfluorohexanone microbeads 32. The perfluorohexanone microbeads 32 are also called fire extinguishing microcapsules. The perfluorohexanone microbeads 32 used in the present invention are purchased from Hefei Zhongke Chuangwei Technology Co., Ltd. Figure 2 The fire-extinguishing function of the fire-extinguishing tape sheet is primarily due to the perfluorohexanone gas within the perfluorohexanone microspheres 32. Under the influence of the high temperature of the flame, the perfluorohexanone microspheres 32 break through the walls, and the gas within rushes out through the breach, quickly reaching the fire point and extinguishing the fire quickly.

[0040] The flame-retardant filler adhesive layer 31 is formed by curing a flame-retardant filler adhesive paste consisting of 100 parts high-performance glue and 35-50 parts flame-retardant powder. The high-performance glue in this layer can be selected from acrylic acid, silicone, phenolic resin, furan resin, polyurethane, acrylic, epoxy resin, etc. The flame-retardant powder can include one or more of aerogel powder, calcium carbonate powder, polymer resin, rubber filler powder, urea-formaldehyde resin powder, fine silica powder, red phosphorus powder, etc. When flames instantly reach the surface of the fire-extinguishing tape, the flame-retardant filler adhesive layer 31 acts as a flame retardant. Furthermore, the mixture of flame-retardant powder and glue also acts as a heat insulator after drying, preventing heat conduction from causing the perfluorohexanone microbeads 32 to break through the surrounding non-flaming areas. Once the fire is extinguished, the fire-extinguishing tape can still be effective in addressing potential hazards elsewhere.

[0041] The fire-extinguishing perfluorohexanone microbeads 32 are evenly and densely distributed in the flame-retardant filling layer 31. For example, 3,700 to 4,100 perfluorohexanone microbeads 32 with a particle size of 500 μm can be densely distributed on a 30 mm x 30 mm plane. There are almost no gaps between adjacent perfluorohexanone microbeads 32. The gaps between the perfluorohexanone microbeads 32 are filled with the flame-retardant filling adhesive, which secures the perfluorohexanone microbeads 32. Furthermore, because the flame-retardant filling adhesive surrounds all sides of the perfluorohexanone microbeads 32 except for the top, when the perfluorohexanone microbeads 32 rupture, the gas can only be ejected from the top, extinguishing the fire at a specific point.

[0042] Since the boiling point of perfluorohexanone is 49°C, and the temperature of many electrical environments is much higher than this temperature, in order to avoid false triggering of the perfluorohexanone microbeads 32, the selected perfluorohexanone microbeads 32 must have appropriate bead walls, and the wall breaking temperature must be controlled above 80°C. The preferred wall breaking temperature range is 120°C to 160°C. The wall breaking temperature varies depending on the particle size of the perfluorohexanone microbeads 32 and the thickness of the flame retardant protective layer 4.

[0043] Considering that the perfluorohexanone microbeads 32 will be subjected to a certain degree of compression during the production process and actual use of the fire extinguishing tape, the wall thickness of the perfluorohexanone microbeads 32 must be thick enough to prevent them from breaking. Currently, most perfluorohexanone microbeads 32 on the market use gelatin and gum arabic as their bead walls. Perfluorohexanone microbeads 32 with very small particle sizes are difficult to withstand pressure. To ensure the wall-breaking temperature and pressure resistance, the perfluorohexanone microbeads 32 of the present invention use a particle size of 350 μm to 1200 μm.

[0044] The reason for using perfluorohexanone microbeads 32 with a particle size of 350μm to 1200μm is that perfluorohexanone microbeads 32 within this particle size range can hold more perfluorohexanone material, which is crucial for active fire extinguishing. Furthermore, in many applications, a small amount of perfluorohexanone gas ejected is insufficient to extinguish the fire source. If the fire source is not extinguished promptly, and the perfluorohexanone microbeads 32 directly facing the fire extinguishing plate have broken through their walls and are unable to extinguish the fire, the fire cannot be contained. Perfluorohexanone microbeads 32 with slightly larger particle sizes, because they contain more perfluorohexanone gas, can release sufficient fire-extinguishing gas and can spray over a much greater distance and range. For example, using a fire extinguishing sheet with 500μm perfluorohexanone microbeads 32 in diameter, with a protective film of 15μm thickness, facing the fire source and 15mm away from the fire source, the fire extinguishing time is within 1.5S. Only a small amount of perfluorohexanone microbeads 32 is needed to achieve the purpose of initial fire extinguishing. If a fire breaks out again at the same or nearby point, the fire extinguishing sheet can still play a role.

[0045] The number of fire extinguishing layers 3 can be only one layer, or multiple layers can be set. In some special occasions, such as sealed electrical cabinets and base station control cabinets, safer and more reliable fire protection functions are needed, and the superposition of multiple layers of fire extinguishing layers 3 can be adopted.

[0046] When there are multiple layers of perfluorohexanone microbeads 32 in a fire extinguishing layer 3, considering that the larger the particle size of the perfluorohexanone microbeads 32, the thicker the bead wall is likely to be, the perfluorohexanone microbeads 32 in the bottom layer are selected to have a larger particle size, and the fire extinguishing layer 3 closer to the potential fire source is selected to have a smaller particle size of perfluorohexanone microbeads 32. Moreover, within the same fire extinguishing layer 3, the particle size difference of the perfluorohexanone microbeads 32 does not exceed 10 μm. Figure 3 As shown, the third fire extinguishing layer 303 is located near the fire point, while the first fire extinguishing layer 301 is located near the flame-retardant tape piece 2. The particle size of the perfluorohexanone microbeads 32 gradually decreases from the bottom layer to the top layer. The first fire extinguishing layer 301 near the flame-retardant tape piece 2 uses perfluorohexanone microbeads 32 with a particle size of 950 to 1200 μm, the second fire extinguishing layer 302 uses perfluorohexanone microbeads 32 with a particle size of 600 to 900 μm, and the third fire extinguishing layer 303 near the fire source uses perfluorohexanone microbeads 32 with a particle size of 350 to 500 μm.

[0047] When a fire occurs, the perfluorohexanone microbeads 32 closest to the fire source first break through the wall to extinguish the fire. Since the perfluorohexanone microbeads 32 in the lower layer have thicker walls and are farther from the fire source, they will not be triggered during the initial fire extinguishing process. After the surface perfluorohexanone fire extinguishing layer 3 extinguishes the fire point, the perfluorohexanone fire extinguishing layer 3 below remains intact, thus preventing a second fire. If the fire is larger, the fire extinguishing perfluorohexanone microbeads 32 in the surface perfluorohexanone fire extinguishing layer 3 have broken through the wall and lost their effectiveness, still failing to extinguish the fire source. The high temperature is transmitted to the lower perfluorohexanone fire extinguishing layer 3, and the perfluorohexanone microbeads 32 in the lower layer break through the wall to extinguish the fire. Similarly, the fire extinguishing sheet can effectively extinguish the fire a second and third time.

[0048] The flame-retardant protective layer 4 covers the surface of the perfluorohexanone microbeads 32 in the fire-extinguishing layer 3 and protects the perfluorohexanone microbeads 32. Because the perfluorohexanone microbeads 32 have relatively thin walls, the exposed portions are susceptible to rupture due to external forces and prolonged ambient temperature. Furthermore, the flame-retardant filler mortar shrinks and hardens after drying. Therefore, the exposed portions of the perfluorohexanone microbeads 32 require a protective layer of appropriate hardness and softness.

[0049] The thickness of the flame retardant protective layer 4 is controlled to be 5 μm to 25 μm. Too thick will affect the gas ejection effect of the perfluorohexanone microbeads 32, while too thin will not protect the perfluorohexanone microbeads 32. In practical applications, the thickness of the protective film layer is preferably controlled to be 15 μm ± 2 μm.

[0050] The flame retardant protective layer 4 has the following three forms: a non-sticky flame retardant protective adhesive layer, a formed flame retardant film, or a sticky flame retardant protective adhesive layer.

[0051] (1) Non-sticky flame retardant protective adhesive layer: It is formed by mixing and curing film-forming glue, 15 to 25 parts of red phosphorus powder or 20 to 30 parts of phosphorus-nitrogen flame retardant powder. The red phosphorus powder and phosphorus-nitrogen flame retardant powder play a flame retardant role. The film layer formed after the mixed glue dries is non-sticky and is used to protect the surface of the perfluorohexanone microbeads 32. In addition, the film layer is flat and smooth, which is convenient for subsequent processing and use. Among them, the film-forming glue can be selected from film-forming acrylic glue, silicone, polyurethane glue, epoxy resin glue, acrylic glue, etc. The non-sticky flame retardant protective adhesive layer can be used. After the fire extinguishing layer 3 is completed and the flame retardant filling glue is completely dry, the mixed glue can be directly applied to the surface of the fire extinguishing layer 3 and dried at 50 to 75°C for 2 hours.

[0052] (2) Molded flame-retardant film: Flame-retardant polyethylene, flame-retardant polypropylene, flame-retardant nylon, flame-retardant PVC, flame-retardant PC, flame-retardant tissue paper, flame-retardant PET, etc. can be directly applied to the surface. When using molded flame-retardant film, it is necessary to first apply flame-retardant glue on one side of the flame-retardant film and then apply it to the surface of the fire extinguishing layer 3.

[0053] (3) The flame retardant protective layer 4 can also be a viscous flame retardant protective adhesive layer: specifically, 100 parts of high-viscosity glue is mixed with 15-25 parts of red phosphorus powder or 20-30 parts of phosphorus-nitrogen flame retardant powder and 3-5 parts of liquid octyl phosphate flame retardant to prepare a high-viscosity flame retardant adhesive. Among them, the high-viscosity glue can be pure acrylic acid, silica gel, phenolic resin, furan resin, polyurethane, acrylic, epoxy resin and other materials. The prepared high-viscosity flame retardant adhesive can withstand high temperatures, with a temperature resistance of 80-120°C. It is only applied to the fireproof points. When a fire occurs, the flame retardant protective layer 4 is burned first, and then the perfluorohexanone microbeads 32 break the wall, and the gas rushes out, playing a role in extinguishing the fire. When using high-viscosity flame retardant adhesive, it can be directly coated on the surface of the fire extinguishing layer 3 after the flame retardant filling glue of the fire extinguishing layer 3 is completely dry. The wet glue coating thickness is 20μm-30μm. Drying conditions: Dry at 50-75℃ for 2 hours. It can be put into use after the glue is cured.

[0054] The flame retardant protective layer 4 not only protects the surface of the perfluorohexanone microbeads 32, but also plays a certain role in heat insulation, preventing the perfluorohexanone microbeads 32 from breaking through the wall prematurely and losing the fire extinguishing effect. When the external temperature is lower than 75°C, the internal perfluorohexanone microbeads 32 will not be triggered. Only when the external temperature reaches above 80°C, the flame retardant protective layer 4 begins to soften. As the temperature further increases, the perfluorohexanone microbeads 32 are triggered to break through the wall, and the gas is ejected from the side of the damaged flame retardant protective layer 4, achieving the effect of extinguishing the fire. Since flame retardant materials are added to the flame retardant protective layer 4, it has a flame retardant effect. Therefore, after the flame burns, the residue and dripping materials will not carry flames and will not cause secondary fires.

[0055] In actual use, the self-flame-retardant and high-efficiency fire-extinguishing tape is attached to the front of the corresponding product, with the flame-retardant protective layer 4 facing the part of the facility that needs to be extinguished and prevented. The surface of the flame-retardant protective layer 4 is 1mm to 20mm away from the fire prevention point, not too far, and the optimal distance is 10mm. When the flame burns the flame-retardant protective layer 4, the flame-retardant protective layer 4 begins to soften. As the temperature rises, the perfluorohexanone microbeads 32 are triggered to break the wall, and the gas is ejected from the side of the destroyed flame-retardant protective layer 4 and sprayed towards the fire source, achieving the effect of extinguishing the fire. In addition, because the flame-retardant filling mortar of the fire extinguishing layer 3 wraps the perfluorohexanone microbeads 32 on all sides except the top, when the perfluorohexanone microbeads 32 break, the gas can only be ejected from the top to extinguish the fire at a specific point.

[0056] The self-flaming-retardant, high-efficiency fire-extinguishing tape of the present invention, with the exception of the release material and perfluorohexanone microbeads 32, which are discarded during use, is made entirely of highly effective fire-retardant materials. This ensures that in the event of a fire, the various parts of the tape will not spontaneously combust, and the tape also acts as a flame retardant. In particular, when the fire source is not located directly in front of the tape, but rather around the tape itself, the tape still acts as a flame retardant. Because the tape is composed of a number of auxiliary materials in addition to the perfluorohexanone microbeads 32, when extinguishing a fire, any remaining flames will burn on the flame retardant material and will not catch fire. Even if they drip, they will not carry flames, preventing the formation of a secondary fire.

[0057] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of the present invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant descriptions in the specification, to explain the operating principles of the embodiments. By referring to these drawings, a person of ordinary skill in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components. The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A self-flaming retardant and high-efficiency fire extinguishing tape, characterized by: It includes a flame retardant tape sheet, a fire extinguishing layer and a flame retardant protective layer arranged in sequence from the bottom layer to the surface layer, and each layer structure is provided with flame retardant materials; The fire extinguishing layer is attached to the adhesive surface of the flame retardant tape sheet, and the fire extinguishing layer includes a flame retardant filling adhesive layer and a plurality of perfluorohexanone microbeads with a particle size of 350 μm to 1200 μm. The perfluorohexanone microbeads are embedded and densely distributed on the flame retardant filling adhesive layer, and the bead walls of adjacent perfluorohexanone microbeads are closely attached. The thickness of the flame retardant filling adhesive layer is consistent with the particle size of the perfluorohexanone microbeads. The flame retardant protective layer is attached to the top of the fire extinguishing layer, and the thickness of the flame retardant protective layer is in the range of 5 to 25 μm.

2. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: In the same fire extinguishing layer, the particle size difference of the perfluorohexanone microbeads is less than or equal to 10 μm.

3. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: The wall breaking temperature range of the perfluorohexanone microbeads is 80°C to 160°C.

4. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: In the fire extinguishing layer, the glue in the flame retardant filling adhesive layer is selected from acrylic acid, silica gel, phenolic resin, furan resin, polyurethane, acrylic or epoxy resin.

5. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: The self-flame retardant and high-efficiency fire extinguishing tape is provided with multiple fire extinguishing layers, and the particle size of the perfluorohexanone microbeads gradually decreases from the bottom layer to the surface layer.

6. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: The flame retardant adhesive tape sheet comprises an adhesive tape sheet base material layer and a flame retardant adhesive layer, wherein the flame retardant adhesive layer is attached to both sides of the adhesive tape sheet base material layer.

7. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 6, characterized in that: In the flame retardant tape sheet, the tape sheet base material layer is made of high-performance flame retardant materials, including flame retardant tissue paper, flame retardant PET, flame retardant PC, PVC, silicone tape sheet, flame retardant foam and aluminum foil.

8. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 6, characterized in that: In the flame retardant adhesive tape sheet, the thickness of each flame retardant adhesive layer ranges from 15 μm to 100 μm.

9. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: The types of the flame retardant protective layer include a non-sticky flame retardant protective adhesive layer, a sticky flame retardant protective adhesive layer and a formed flame retardant film.

10. The self-flaming retardant and high-efficiency fire extinguishing tape sheet according to claim 1, characterized in that: The flame retardant tape sheet is provided with a release layer for protecting the adhesive surface and preventing adhesion.

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