Flame retardant fire extinguishing tape containing flame retardant and fire extinguishing fluid microcapsules and method for manufacturing same
The flame-retardant fire extinguishing tape with a fire retardant pad layer and UV curing addresses inefficiencies in fire suppression and production, achieving rapid fire extinguishment and mass production with reduced damage and improved properties.
Patent Information
- Application Number
- PCT/KR2024/016160
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-04
- Filing Date
- 2024-10-23
- Publication Date
- 2025-12-11
AI Technical Summary
Existing fire suppression systems are inefficient in early fire extinguishment, cause unnecessary water damage, and have limitations in curing time and scalability for mass production of flame-retardant sheets.
A flame-retardant fire extinguishing tape with a fire retardant pad layer containing a mixture of acrylate oligomer, fire retardant microcapsules, and aluminum hydroxide, which discharges a fire extinguishing agent upon high heat, and is produced through UV curing to ensure rapid and continuous processing.
The tape effectively extinguishes fires early, minimizes damage, and allows for mass production with improved electrical insulation and reduced corrosion, while maintaining low smoke and toxicity.
Smart Images

Figure KR2024016160_11122025_PF_FP_ABST
Abstract
Description
Flame-retardant fire retardant tape containing flame retardant and fire extinguishing agent microcapsules and method for producing the same
[0001] The present invention relates to a flame-retardant fire retardant tape comprising a flame retardant and a fire retardant microcapsules and a method for producing the same, and more particularly, to a flame-retardant fire retardant tape in which a fire pad layer comprising a mixture of an acrylate oligomer, a fire retardant microcapsules and a flame retardant is formed on a flame retardant adhesive layer and a method for producing the same.
[0002]
[0003] Today, fire damage is becoming increasingly severe and complex due to the increasing size, complexity, and capacity of industrial and commercial buildings. Fires in collective facilities like apartments and subways, for example, are difficult to extinguish using fire suppression systems due to the generation of toxic substances and gases. To prevent the spread of fire, flame-retardant materials or paints are used in these facilities to passively inhibit the spread of fire.
[0004] Existing fire-fighting equipment, such as sprinklers installed in buildings to suppress fires, sprays fire-fighting water throughout the space when a fire is detected. However, in the case of a false fire alarm, unnecessary fire-fighting water is sprayed into the space, which can cause significant damage, so most of them are operated manually.
[0005] Accordingly, there is a need for equipment that can fundamentally block the spread of fire within the golden time by extinguishing the fire at an early stage when it is still small, and minimize damage to surrounding equipment and facilities.
[0006] Furthermore, in the case of conventional room-temperature curing sheet manufacturing technology, a resin including an epoxy that cures at room temperature is mixed at a certain ratio, the mixed binder is injected into a mold manufactured to a specific size, and the mixture is cured at room temperature. In such a case, it takes more than three hours at room temperature to obtain a fully cured sheet.
[0007] As mentioned above, in addition to the long curing time, it is difficult to produce sheets larger than the mold size, which limits its suitability for mass production.
[0008]
[0009] The purpose of the present invention is to provide a flame-retardant fire extinguishing tape including a flame retardant, which exhibits excellent flame retardancy, and includes a fire extinguishing agent microcapsule capable of extinguishing a fire at an early stage, including a microcapsule that discharges a fire extinguishing agent at a high temperature, and a method for producing the same.
[0010] In addition, the purpose of the present invention is to provide a flame-retardant fire retardant tape including a fire retardant microcapsule containing an aluminum hydroxide flame retardant, which is non-toxic, has low smoke properties, causes less corrosion of processing machinery, and has excellent electrical insulation properties, and a method for manufacturing the same.
[0011] In addition, it is an object of the present invention to provide a method for manufacturing a flame retardant fire retardant tape comprising flame retardant and fire retardant microcapsules, which can be continuously processed and mass-produced.
[0012] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the art from the description of the present invention.
[0013]
[0014] In order to achieve the above purpose, the present invention provides a flame retardant fire retardant tape comprising a flame retardant and a fire extinguishing agent microcapsule and a method for manufacturing the same.
[0015] The present invention provides a flame-retardant fire retardant tape comprising a fire retardant pad layer; a flame-retardant adhesive layer; and the fire retardant pad layer is a mixture of an acrylate oligomer, a fire retardant microcapsule, and a flame retardant, and includes a flame retardant and a fire retardant microcapsule.
[0016] In the present invention, the digestion pad layer is characterized in that the acrylate oligomer, the digestion liquid microcapsule, and the flame retardant are mixed in a weight ratio of 1: (0.5 to 1.5): (0.5 to 1.5), the acrylate oligomer is a mixture of an acrylic monomer and a UV initiator, the digestion liquid microcapsule is a core-shell structure microcapsule containing a fluorine compound digestion liquid, and the flame retardant is aluminum hydroxide having a size of 6 to 12 μm.
[0017] In the present invention, the acrylate oligomer is characterized in that it contains 75 to 85 wt% of 2-ethylhexylacrylate, 5 to 20 wt% of acrylic acid, and 0.5 to 10 wt% of UV initiator, based on 100 wt% of the acrylate oligomer.
[0018] The present invention provides a method for producing a flame-retardant fire retardant tape comprising flame retardant and fire retardant microcapsules, the method comprising the steps of: forming an acrylate oligomer by mixing an acrylic monomer and a UV initiator; adding core-shell structured microcapsules containing a fluorine compound fire retardant and a flame retardant to the acrylate oligomer and mixing them to produce a mixture; applying the mixture onto a flame-retardant adhesive layer; and curing the applied mixture by UV irradiation.
[0019] In the present invention, the step of applying the mixture onto the flame-retardant adhesive layer is characterized by applying it in a thickness of 200 to 600 ㎛, and the step of curing by UV irradiation is characterized by curing under conditions of 700 to 1000 mJ of light at a temperature of 30 to 55°C.
[0020]
[0021] By means of solving the above problem, the present invention can provide a flame-retardant fire extinguishing tape including a flame retardant, which exhibits excellent flame retardancy, and includes a fire extinguishing agent microcapsule capable of extinguishing a fire at an early stage, including a microcapsule that discharges a fire extinguishing agent at a high temperature, and a method for producing the same.
[0022] In addition, the present invention can provide a flame-retardant fire retardant tape including a fire retardant microcapsule containing an aluminum hydroxide flame retardant, which is non-toxic, has low smoke properties, causes less corrosion of processing machinery, and has excellent electrical insulation properties, and a method for manufacturing the same.
[0023] In addition, the present invention can provide a flame-retardant fire extinguishing tape and a method for manufacturing the same, including a fire extinguishing agent microcapsule that can suppress combustion by generating H2O upon combustion and diluting combustible gas and lowering the temperature around a fire before combustion.
[0024] In addition, the present invention can provide a method for manufacturing a flame-retardant fire retardant tape comprising flame retardant and fire retardant microcapsules that can be continuously processed and mass-produced.
[0025] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.
[0026]
[0027] FIG. 1 is a drawing showing a manufacturing process of a flame-retardant fire retardant tape containing a flame retardant and fire retardant microcapsules according to the present invention.
[0028] FIG. 2 is a drawing showing a flame retardant fire extinguishing tape comprising a flame retardant and fire extinguishing agent microcapsules according to the present invention.
[0029] FIG. 3 is a drawing showing a fire test report of a flame-retardant fire tape including a flame retardant and fire extinguishing agent microcapsules manufactured in Example 1 according to the present invention.
[0030] Figure 4 is a drawing showing a UL94 flame retardancy rating test report of a fire retardant tape manufactured in Example 1 according to the present invention.
[0031]
[0032] The terms used in this specification have been selected from widely used, current terms, taking into account the functions of the present invention. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, terms may be arbitrarily selected by the applicant, in which case their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in this invention should not be defined simply as names, but rather based on their inherent meanings and the overall content of the present invention.
[0033] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.
[0034] Numerical ranges are inclusive of the values defined in the ranges above. Any maximum numerical limitation given throughout this specification includes any lower numerical limitation, as if that lower numerical limitation were explicitly stated. Any minimum numerical limitation given throughout this specification includes any higher numerical limitation, as if that higher numerical limitation were explicitly stated. Any numerical limitation given throughout this specification will include any better numerical range within the broader numerical range, as if that narrower numerical limitation were explicitly stated.
[0035]
[0036] Flame retardant fire extinguishing tape containing flame retardant and fire extinguishing agent microcapsules
[0037] The present invention relates to a flame retardant fire extinguishing tape comprising a flame retardant and a fire extinguishing agent microcapsule.
[0038] The present invention relates to a flame-retardant fire retardant tape comprising a fire retardant pad layer; a flame-retardant adhesive layer; and the fire retardant pad layer is a mixture of an acrylate oligomer, a fire retardant microcapsule, and a flame retardant, and comprises a flame retardant and a fire retardant microcapsule.
[0039] The above-mentioned fire retardant pad layer may exhibit high flame retardancy by including a flame retardant and, at the same time, may contain a fire extinguishing agent microcapsule to extinguish the fire by discharging the fire extinguishing agent when high heat is applied in the event of a fire. The above-mentioned flame retardant adhesive layer may be an adhesive layer exhibiting flame retardancy and exhibiting excellent adhesiveness even at high temperatures.
[0040] In the present invention, the digestion pad layer may be a mixture of the acrylate oligomer, the digestion liquid microcapsule, and the flame retardant in a weight ratio of 1: (0.5 to 1.5): (0.5 to 1.5), the acrylate oligomer may be a mixture of an acrylic monomer and a UV initiator, the digestion liquid microcapsule may be a core-shell structured microcapsule containing a fluorine compound digestion liquid, and the flame retardant may be aluminum hydroxide having a size of 6 to 12 μm.
[0041] If the above-mentioned digestive microcapsules are mixed at a weight ratio of less than 0.5, the amount of digestive microcapsules discharged in the event of a fire may be insufficient, making it difficult to extinguish the fire. If the above-mentioned digestive microcapsules are mixed at a weight ratio of more than 1.5, the problem of the mixture not being sufficiently cured may occur.
[0042] If the above flame retardant is mixed in a weight ratio of less than 0.5, a problem of reduced flame retardant effect may occur, and if it is mixed in a weight ratio of more than 1.5, a problem of reduced workability during tape manufacturing may occur due to an increase in viscosity.
[0043] The above acrylate oligomer may determine the main characteristics and properties of the ultraviolet curable resin, and may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate, polyester acrylate, and silicone acrylate.
[0044] The above fluorine compound extinguishing agent may be a non-combustible extinguishing composition selected from the group consisting of monoalkoxy-substituted or dialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane and perfluorocycloalkylene-containing perfluoroalkane compounds optionally containing one or more additional intra-chain heteroatoms in the perfluorinated moiety, and may preferably be a fluorinated ketone, but is not limited thereto.
[0045] The above fluorine compound fire extinguishing agent does not conduct electricity, does not react with substances it comes into contact with, such as oxidation, and can quickly evaporate and take away heat upon contact with fire or smoke. Therefore, even if a fire occurs in a power supply device such as an outlet, distribution board, branch board, transformer, or control box, it may be possible to extinguish the fire without affecting the power supply device.
[0046] The microcapsule having a core-shell structure containing the above digestive fluid may be capable of maintaining its shape at room temperature and operating above a certain temperature. The shell of the microcapsule may be a polymer shell having excellent oxidation resistance.
[0047] The microcapsules having a core-shell structure containing the above-mentioned digestive agent may be softened at a temperature higher than the reaction temperature, and may be ruptured when the digestive agent is explosively vaporized at a temperature higher than the reaction temperature, causing the volume of the digestive agent to rapidly expand.
[0048] The above aluminum hydroxide remains stable up to 200°C, and may absorb a large amount of heat through fixation of crystal water dehydration at higher temperatures. The inclusion of the above aluminum hydroxide may improve the fire resistance of the fire extinguishing tape.
[0049] The size of the above aluminum hydroxide may be 6 to 12 μm, and preferably 8 to 10 μm. If the size of the above aluminum hydroxide is less than 6 μm, the surface of the flame retardant fire extinguishing tape containing the same may become uneven, and if the size exceeds 12 μm, the dispersibility of the flame retardant may become deteriorated.
[0050] In the present invention, the acrylate oligomer may include 75 to 85 wt% of 2-ethylhexylacrylate, 5 to 20 wt% of acrylic acid, and 0.5 to 10 wt% of UV initiator, based on 100 wt% of the acrylate oligomer.
[0051]
[0052] Method for manufacturing flame-retardant fire retardant tape comprising flame retardant and fire extinguishing agent microcapsules
[0053] The present invention relates to a method for manufacturing a flame-retardant fire retardant tape comprising a flame retardant and a fire extinguishing agent microcapsule.
[0054] The present invention relates to a method for producing a flame-retardant fire retardant tape comprising flame retardant and fire retardant microcapsules, comprising the steps of: forming an acrylate oligomer by mixing an acrylic monomer and a UV initiator; adding core-shell structured microcapsules containing a fluorine compound fire retardant and a flame retardant to the acrylate oligomer and mixing them to produce a mixture; applying the mixture onto a flame-retardant adhesive layer; and curing the applied mixture by UV irradiation.
[0055] In the present invention, the step of applying the mixture onto the flame-retardant adhesive layer may be applying the mixture in a thickness of 200 to 600 ㎛, and the step of curing by UV irradiation may be curing under conditions of 700 to 1000 mJ of light at a temperature of 30 to 55°C.
[0056] Since the digestive microcapsules having the shell structure of the above polymer cause a reaction at a specific temperature, the process may be performed at a temperature of 30 to 55°C in order to maintain a low process temperature, and if the temperature range is exceeded, the possibility of a decrease in the extinguishing ability in the event of a fire may be very low.
[0057] More specifically, when the UV curing process is carried out at a process temperature of less than 30°C, the energy required may be lower than the curing conditions of the UV binder containing microcapsules, which may cause problems such as curing occurring only in a portion or weak bonding between the microcapsules and the binder, resulting in defective sheets. In addition, when the temperature exceeds 55°C, the microcapsules in the binder may react to the high energy, causing an outgassing phenomenon, which may result in a foaming phenomenon and a deterioration in the function of the digestive capsule due to the vaporization of the digestive fluid in the microcapsules, which may result in a decrease in the digestive ability and a problem such as defective sheets due to the foaming phenomenon.
[0058] If the above UV curing process is carried out under the light quantity condition of less than 700 mJ, the energy required may be lower than the curing condition of the UV binder containing the digestive capsule, which may cause a problem in that only a portion of the sheet is cured or the bond between the digestive capsule and the binder is weak, resulting in a defective sheet. In addition, if the light quantity condition exceeds 1050°C, the digestive capsule in the binder may react to the high energy, causing an outgassing phenomenon, which may result in a foaming phenomenon and a vaporization of the digestive liquid in the digestive capsule, which may cause a deterioration in the function of the digestive capsule, resulting in a decrease in the digestive ability and a problem in that the foaming phenomenon may cause a defect.
[0059] The above UV irradiation and curing step can be performed in an atmosphere of room temperature, and by curing the UV resin and binder through UV irradiation, it is possible to control the reaction of the capsule to a minimum without requiring a separate applied temperature.
[0060] In addition, the step of curing by UV irradiation may have a very low possibility of causing environmental pollution and adverse effects on the human body by irradiating UV at room temperature, and may enable economical manufacturing because it requires relatively low heat energy compared to the conventional thermal curing process.
[0061] The above fire suppression sheet manufacturing method may be used by cutting the hardened sheet to fit the purpose through a step of processing the hardened sheet through any one process selected from the group consisting of cutting and slitting.
[0062] A fire retardant tape manufactured by the above-described manufacturing method includes a fire retardant pad layer; a flame retardant adhesive layer; and the fire retardant pad layer may be a flame retardant fire retardant tape including a flame retardant and fire retardant microcapsules, wherein the fire retardant pad layer is a mixture of an acrylate oligomer, a fire retardant microcapsule, and a flame retardant.
[0063] The above-mentioned fire retardant pad layer may exhibit high flame retardancy by including a flame retardant and, at the same time, may contain a fire extinguishing agent microcapsule to extinguish the fire by discharging the fire extinguishing agent when high heat is applied in the event of a fire. The above-mentioned flame retardant adhesive layer may be an adhesive layer exhibiting flame retardancy and exhibiting excellent adhesiveness even at high temperatures.
[0064] In the present invention, the digestion pad layer may be a mixture of the acrylate oligomer, the digestion liquid microcapsule, and the flame retardant in a weight ratio of 1: (0.5 to 1.5): (0.5 to 1.5), the acrylate oligomer may be a mixture of an acrylic monomer and a UV initiator, the digestion liquid microcapsule may be a core-shell structured microcapsule containing a fluorine compound digestion liquid, and the flame retardant may be aluminum hydroxide having a size of 6 to 12 μm.
[0065] If the above-mentioned digestive microcapsules are mixed at a weight ratio of less than 0.5, the amount of digestive microcapsules discharged in the event of a fire may be insufficient, making it difficult to extinguish the fire. If the above-mentioned digestive microcapsules are mixed at a weight ratio of more than 1.5, the problem of the mixture not being sufficiently cured may occur.
[0066] If the above flame retardant is mixed in a weight ratio of less than 0.5, a problem of reduced flame retardant effect may occur, and if it is mixed in a weight ratio of more than 1.5, a problem of reduced workability during tape manufacturing may occur due to an increase in viscosity.
[0067] The above acrylate oligomer may determine the main characteristics and properties of the ultraviolet curable resin, and may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate, polyester acrylate, and silicone acrylate.
[0068] The above fluorine compound extinguishing agent may be a non-combustible extinguishing composition selected from the group consisting of monoalkoxy-substituted or dialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane and perfluorocycloalkylene-containing perfluoroalkane compounds optionally containing one or more additional intra-chain heteroatoms in the perfluorinated moiety, and may preferably be a fluorinated ketone, but is not limited thereto.
[0069] The above fluorine compound fire extinguishing agent does not conduct electricity, does not react with substances it comes into contact with, such as oxidation, and can quickly evaporate and take away heat upon contact with fire or smoke. Therefore, even if a fire occurs in a power supply device such as an outlet, distribution board, branch board, transformer, or control box, it may be possible to extinguish the fire without affecting the power supply device.
[0070] The microcapsule having a core-shell structure containing the above digestive fluid may be capable of maintaining its shape at room temperature and operating above a certain temperature. The shell of the microcapsule may be a polymer shell having excellent oxidation resistance.
[0071] The microcapsules having a core-shell structure containing the above-mentioned digestive agent may be softened at a temperature higher than the reaction temperature, and may be ruptured when the digestive agent is explosively vaporized at a temperature higher than the reaction temperature, causing the volume of the digestive agent to rapidly expand.
[0072] The above aluminum hydroxide remains stable up to 200°C, and may absorb a large amount of heat through fixation of crystal water dehydration at higher temperatures. The inclusion of the above aluminum hydroxide may improve the fire resistance of the fire extinguishing tape.
[0073] The size of the above aluminum hydroxide may be 6 to 12 μm, and preferably 8 to 10 μm. If the size of the above aluminum hydroxide is less than 6 μm, the surface of the flame retardant fire extinguishing tape containing the same may become uneven, and if the size exceeds 12 μm, the dispersibility of the flame retardant may become deteriorated.
[0074] In the present invention, the acrylate oligomer may include 75 to 85 wt% of 2-ethylhexylacrylate, 5 to 20 wt% of acrylic acid, and 0.5 to 10 wt% of UV initiator, based on 100 wt% of the acrylate oligomer.
[0075]
[0076] Example
[0077] Hereinafter, examples of the present invention will be described in detail, but it is obvious that the present invention is not limited to the following examples.
[0078] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. The present invention is defined solely by the scope of the claims.
[0079]
[0080] <Material Example 1> Digestive fluid microcapsules
[0081] Microcapsules were manufactured in the form of granules of 1,000 μm in size by mixing a fluorinated ketone extinguishing agent, an oxidizing agent, and an epoxy resin to form a solid mass, which was then crushed.
[0082]
[0083] <Example 1> Digestive tape containing digestive fluid microcapsules and aluminum hydroxide
[0084] Acrylic monomer (acrylic acid), 2-ethylhexylacrylate, and UV initiator (Irgacure 184) were added to a stirrer and stirred for 30 minutes to form an acrylate oligomer. The digestive microcapsules prepared in Material Example 1 and aluminum hydroxide, a flame retardant, were added to the stirrer containing the formed acrylate oligomer so that the acrylate oligomer, the digestive microcapsules, and the aluminum hydroxide were in a weight ratio of 1:1:1, and then stirred for an additional 20 minutes.
[0085] The mixture thus prepared was poured into a trailer and milled to a uniform thickness of 0.4 T. The milled mixture was cured with UV light at 50°C for 2 minutes. Thereafter, the cured film was attached to a release paper and cut to produce a digestive tape containing digestive microcapsules and a flame retardant material.
[0086]
[0087] <Comparative Example 1> Fire-extinguishing tape containing phosphorus (P) flame retardant
[0088] It was manufactured in the same manner as the fire extinguishing tape containing the magnesium hydroxide flame retardant manufactured in Example 1, except that a phosphorus (P) flame retardant was used as the flame retardant.
[0089]
[0090] <Comparative Example 2> Fire extinguishing tape containing a mixture with a low aluminum hydroxide mixing ratio
[0091] A fire extinguishing tape containing a magnesium hydroxide flame retardant manufactured in Example 1 was manufactured in the same manner as the fire extinguishing tape, except that the acrylate oligomer, the fire extinguishing microcapsules, and the aluminum hydroxide were added in a weight ratio of 1:1:0.5.
[0092]
[0093] <Experimental Example 1> Digestion Performance Experiment
[0094] The fire extinguishing performance of the fire extinguishing tapes manufactured in the above Example 1 and Comparative Examples 1 and 2 was tested by KTR, and the results are shown in Fig. 3.
[0095] As shown in the test report of Fig. 3, the fire extinguishing tape of Example 1 was found to exhibit excellent fire extinguishing performance in the test results on KTR.
[0096] On the other hand, the fire extinguishing performance was found to be low in the case of the fire extinguishing tape containing the flame retardant of Comparative Example 1 and the fire extinguishing tape containing a small amount of the aluminum hydroxide flame retardant of Comparative Example 2.
[0097] Through the above results, it was confirmed that the flame retardant fire extinguishing tape including the flame retardant and fire extinguishing agent microcapsules according to the present invention exhibits excellent fire extinguishing performance.
[0098]
[0099] <Experimental Example 2> Flame retardant performance test
[0100] The flame retardant performance of the fire retardant tapes manufactured in the above Example 1 and Comparative Examples 1 and 2 was tested by a UL-certified agency, and the results are shown in Fig. 4.
[0101] As shown in the test report of Fig. 4, the fire extinguishing tape of Example 1 was found to meet the UL94 HB rating standard.
[0102] Through the above results, it was confirmed that the flame retardant fire retardant tape including the flame retardant and fire retardant microcapsules according to the present invention exhibits excellent flame retardant performance.
Claims
1. Digestive pad layer; including a flame retardant adhesive layer; The above digestive pad layer is, A flame retardant fire retardant tape comprising a flame retardant and a fire retardant microcapsule, wherein the flame retardant is a mixture of an acrylate oligomer, a fire retardant microcapsule and a flame retardant.
2. In paragraph 1, The above digestive pad layer is, The above acrylate oligomer, the above digestive fluid microcapsules and the above flame retardant are mixed in a weight ratio of 1: (0.5 to 1.5): (0.5 to 1.5), The above acrylate oligomer is a mixture of acrylic monomer and UV initiator, The above digestive fluid microcapsule is a core-shell structure microcapsule containing a fluorine compound digestive fluid, A flame retardant extinguishing tape comprising a flame retardant and a extinguishing agent microcapsule, characterized in that the flame retardant is aluminum hydroxide having a size of 6 to 12 μm.
3. In paragraph 2, The above acrylate oligomer is, A flame retardant extinguishing tape comprising a flame retardant and extinguishing agent microcapsules, characterized in that it comprises 75 to 85 wt% of 2-ethylhexylacrylate, 5 to 20 wt% of acrylic acid, and 0.5 to 10 wt% of UV initiator relative to 100 wt% of the above acrylate oligomer.
4. A step of forming an acrylate oligomer by mixing an acrylic monomer and a UV initiator; A step of preparing a mixture by adding core-shell structured microcapsules containing a fluorine compound extinguishing agent and a flame retardant to the above acrylate oligomer and mixing them; A step of applying the mixture onto a flame-retardant adhesive layer; and A method for manufacturing a flame-retardant fire retardant tape comprising a flame retardant and a fire retardant microcapsule, comprising a step of curing the applied mixture by UV irradiation.
5. In paragraph 4, The step of applying the above mixture onto the flame-retardant adhesive layer is: It is applied in a thickness of 200 to 600 ㎛, The above UV irradiation and curing step is: A method for manufacturing a flame-retardant fire retardant tape comprising flame retardant and fire retardant microcapsules, characterized in that the tape is cured under conditions of 700 to 1000 mJ of light at a temperature of 30 to 55°C.
Citation Information
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