KR102149435B1 - Fire extinguishing film comprising a microcapsule for fire extinguishing, and preparation method thereof - Google Patents

Abstract

The present invention relates to a fire extinguishing film including a fire extinguishing microcapsule and a method for manufacturing the same. The fire extinguishing film includes a core-shell structure capsule and photocurable resin. The core contains an extinguishing agent. Accordingly, the fire extinguishing film can prevent or extinguish a fire in various microscopic spaces.

Description

[Fire extinguishing film comprising a microcapsule for fire extinguishing, and preparation method thereof]

The present invention relates to a fire extinguishing film including a fire extinguishing microcapsule and a method for producing the same, wherein the fire extinguishing film comprises a capsule having a core-shell structure and a photocurable resin, and the core contains a fire extinguishing agent. To do. Accordingly, the fire extinguishing film provides the effect of preventing or extinguishing fires in various microscopic spaces.

Encapsulation is a physico-chemical process in which a liquid, solid, or gas is used as a core and a shell surrounding the outside of the core is formed. In the core-shell structure, the encapsulated core is Prevent interaction. The main purpose of such encapsulation is the controlled external release of the encapsulated core, in which case the encapsulated core generally requires complete separation from the outside during the storage and processing steps.

In addition, the external release of the core upon encapsulation may vary depending on the intended use. For example, in order to take advantage of the controlled external release of the core released from the shell, the core can be encapsulated and used in drugs, pesticides, flavors and mineral fertilizers. Among the various uses of such encapsulation, the technology of extinguishing fire by extinguishing the shell by destroying the shell in case of fire, especially including the core as a extinguishing agent, is urgently needed in the modern society where many electronic products and electric products are used. Various technologies are being developed as required.

For example, a fire extinguishing microcapsule is encapsulated inside the shell with a fire extinguishing agent as its core, and when a fire occurs, the fire extinguishing agent leaves the shell within a short time within a narrow temperature range, resulting in decapsulation (decapsulation). Fire suppression can be quickly and the efficiency of fire suppression can be improved. However, these extinguishing microcapsules are highly affected by the external environment, and if the shell is destroyed by external force or the environment, and the core extinguishing agent is released to the outside, the amount of extinguishing agent is small at the moment when it is necessary to extinguish a fire. Problems can arise that do not meet the concentration of the extinguishing agent. Therefore, while providing an excellent digestive effect by securing a sufficient amount of digestive agents, research on a method for quickly suppressing a topic by applying various digestive microcapsules is actively in progress.

Korean Registered Patent Publication No. 10-1994813 (2019.06.25)

An object of the present invention is to solve all of the above-described problems.

An object of the present invention is to prevent or extinguish a fire by applying it to various spaces such as a very small space as well as a place where a fire hazard always exists.

An object of the present invention is to effectively extinguish a fire in a short time when a fire occurs.

An object of the present invention is to help prevent fire by providing excellent ductility and heat dissipation effect.

In order to achieve the object of the present invention as described above, and to realize the characteristic effects of the present invention described later, the characteristic configuration of the present invention is as follows.

According to an embodiment of the present invention, a digestive microcapsule and a photocurable resin are included, wherein the digestive microcapsule has a core-shell structure, and the core contains 80 to 97% by weight of a digestive agent, and the shell There is provided a film including a microcapsule for digestion that surrounds the silver core and contains a precipitating agent or a coagulant as a non-porous polymer.

According to an embodiment of the present invention, mixing a photoinitiator and a monomer, and adding an oligomer and an additive to prepare a photocurable resin; Preparing a photocurable resin mixture by putting a digestive microcapsule into the photocurable resin; And photo-curing the photo-curable resin mixture to prepare a film.

The fire extinguishing film including the microcapsules for fire extinguishing according to the present invention can be applied in a place where a fire hazard always exists or in various spaces, thereby providing an effect of preventing fire or extinguishing quickly. That is, when a fire occurs, the microcapsules are ruptured at the same time within a short time, and the fire can be extinguished quickly and efficiently.

In particular, it can be applied to various spaces such as very small spaces such as rechargeable batteries and electronic cigarettes as well as places where there is always a risk of fire such as an outlet and an electric breaker.

In addition, by providing excellent ductility and heat dissipation, it can help to prevent fire.

1 shows a fire extinguishing film comprising a microcapsule for fire extinguishing according to the present invention.
Figure 2 shows the digestive microcapsules according to the present invention.
Figure 3 shows that the adhesive layer is laminated on the fire extinguishing film containing the microcapsules for fire extinguishing according to the present invention.
Figure 4 shows that the release layer is laminated on the fire extinguishing film containing the microcapsules for fire extinguishing according to the present invention.
Figure 5 shows a tape structure including a fire extinguishing film including a microcapsule for fire extinguishing according to the present invention.
Figure 6 shows that the heat insulation/insulation layer is laminated on the fire extinguishing film including the fire extinguishing microcapsules according to the present invention.

For the detailed description of the present invention to be described below, reference is made to specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims.

According to an embodiment of the present invention, the digestive microcapsule 110 and a photocurable resin are included, and the digestive microcapsule 110 has a core 111-shell 112 structure, and the core 111 In the film containing 80 to 97% by weight of a extinguishing agent, the shell 112 surrounds the core 111, and includes a microcapsule 110 for digestion containing a precipitant or coagulant as a non-porous polymer polymer ( 100) is provided.

Referring to FIG. 1, the film 100 including the extinguishing microcapsule 110 includes the extinguishing microcapsule 110 and a photocurable resin, and these are light conditions (UV, visible light, electron beam (EB)) , LED, etc.) can be finally provided in the form of a film.

Referring to FIG. 2, the fire extinguishing microcapsule 110 is formed in the form of a core 111-shell 112 in which the inner core 111 is surrounded by an outer shell 112.

The size of the microcapsules 110 is preferably 1 to 1,000 μm, and vaporizes at a specific temperature in case of fire, and may react by tearing the shell as if ruptured by the vaporization energy of the fire extinguishing agent. A very small amount of extinguishing agent is ejected in one size of the microcapsule 110, but a plurality of microcapsules 110 for extinguishing explosively and simultaneously react to extinguish a fire when a sufficient amount of gasified extinguishing agent is ejected. I can. In addition, in the event of a fire, the extinguishing agent may be evaporated and expanded by heat, but it does not react (burst, leak) due to the durability and airtightness of the shell 112 formed of the non-porous polymer polymer, but at a higher specific temperature, In particular, the fire extinguishing agent vaporized during the reaction in the event of a fire directly acts on the ignition point of the fire, breaking the chain reaction with the four conditions of combustion: fuel (combustible), oxygen (air), heat (ignition source), during chain reaction, heat (ignition source). You can put out a fire.

In this case, the core 111 may contain a extinguishing agent, and the extinguishing agent is formed to be 80 to 97% by weight of the microcapsule 110, and when included in the above range, the most excellent extinguishing effect will be provided. I can.

In addition, the fire extinguishing agent may be used as a material having excellent fire extinguishing performance as a main component of a fire extinguishing agent that is not restricted in production and use by the Montreal Protocol. For example, 2-iodine-1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) and Iodofluorocarbon (FIC-217I1 or FIC-13I1), 1,1,1,2,2- Pentafluoroethane (CF ₃ CF ₂ H, HFC-125), 1,1,1,2,3,3,3-Heptafluoropropane (CF ₃ CHFCF ₃ ), Chlorotetrafluoroethane (CHClFCF ₃ ), dodecafluoro-2-methylpentan-3-one (FK-5-1-12, CF ₃ CF ₂ C(O)CF(CF ₃ ) ₂ )), 1-chloro-1,2,2,2-tetrafluoroethane(C ₂ HClF ₄ ), 2-chloro- 1,1,1,2-tetrafluoroethane(CHClFCF ₃ , HCFC-124), decafluorocyclohexanone (perfluorocyclohexanone), CF ₃ CF ₂ C(O)CF(CF ₃ ) ₂ (-1 ,1,1,2,4,4,5,5,5-nonafluoro-2-trifluoromethyl-butan-3one), (CF ₃ ) ₂ CFC(O)CF(CF ₃ ) ₂ ( -1,1,1,2,4,5,5,5,6,6,6,-octafluoro-2,4,-bis(trifluoromethyl)pentan-3-one), CF ₃ CF ₂ C(O)CF ₂ CF ₂ CF ₃ , CF ₃ C(O)CF(CF ₃ ) ₂ , 1,1,1,3,3,4,4,5,5,6,6,7,7 ,8,8,8,-hexadodecafluorooctan-2-one (CF ₃ CF ₂ CF ₂ CF ₂ CF ₂ CF ₂ C(O)CF ₃ ), 1,1,1,3,4,4 ,4,-heptafluoro-3-trifluoromethylbutan-2-one (CF ₃ C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,4,4,5,5, -Octafluoro-2-trifluoromethylpentan-3-one (HCF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,4,4,5,5,6 ,6,6,-undecafluoro-2-trifluoromethylhexan-3-one (CF ₃ CF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ), 1-chloro-,1,1, 3,4,4,4-hexafluoro-3-triflu Oromethyl-butan-2-one ((CF ₃ ) ₂ CFC(O)CF ₂ CL), 1,1,1,2,2,4,4,5,5,6,6,6-dodecafluoro Lohexan-3-one (CF ₃ CF ₂ C(O) CF ₂ CF ₂ CF ₃ ), 1,1,1,5,5,5,-hexafluoropentane-2-4-dione (CF ₃ C (O)CH ₂ C(O)CF ₃ ), 1,1,1,2,5,6,6,6-octafluoro-2,5-bis(trifluoromethyl)hexane-3,4- Dion((CF ₃ ) ₂ CFC(O)C(O)C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,2,3,3,5,5,6,6,7 ,7,7,-tetradecafluoroheptan-4-one (CF ₃ CF ₂ CF ₂ C(O)CF ₂ CF ₂ CF ₃ ), 1,1,1,3,3,4,4,4- Octafluorobutal-2-one (CF ₃ C(O)CF ₂ CF ₃ ), 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4- Trifluoromethylpentan-3-one (CF ₃ OCF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ) and 1,1,1,2,4,4,5,5,6,6,7, 7,7,-tridecafluoro-2-trifluoromethylheptan-3-one (CF ₃ CF ₂ CF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ) At least one selected from may be provided. .

In addition, as a fire extinguishing agent, the chemical formula C _x H _y O _z Hal _k (where x, y, z, k are natural numbers, Hal is Br, I, F), for example, 3M's Novec 1230 (Novec 1230) may be used, but is not limited thereto.

In addition, the extinguishing agent is present in a liquid state at room temperature, but it is provided to change the phase to the gas phase at a temperature of 30 ℃ to 100 ℃. Preferably, the gas phase is changed at 30°C to 60°C, so that when a fire occurs, the capsule ruptures and the fire can be extinguished.

According to an embodiment of the present invention, the shell 112 may include a precipitating agent or a coagulant as a non-porous polymer polymer. It may be provided, including 1 to 10 parts by weight of a precipitant or 1 to 10 parts by weight of a coagulant, based on 100 parts by weight of the non-porous polymer polymer.

The shell 112 covers the outside of the extinguishing agent, which is the core 111, and contains the extinguishing agent, and maintains weatherability and airtightness to protect the extinguishing agent from leaking into the atmosphere by the external environment at normal or up to a specific temperature. Should be. However, at 30°C to 100°C, the shell may rupture due to the phase change of the fire extinguishing agent from the liquid phase to the gas phase and the softening of the shell at high temperature. In this case, the shell 112 may have a thickness of 50 to 2000 nm.

In addition, it is preferable that the shell 112 is made of a non-porous polymer polymer in order to perform a role by a temperature reaction. For example, polyurethane resin, polyurea resin, polyamide resin, polyester resin, polycarbonate resin, aminoaldehyde resin, melamine resin, polystyrene resin, styrene-acrylate copolymer resin, styrene-methacrylate copolymer resin , Gelatin, polyvinyl alcohol, phenol formaldehyde resin, and resorcinol formaldehyde resin may be provided including at least one selected from, but is not limited thereto.

The precipitating agent included in the non-porous polymer polymer may be provided with at least one selected from potassium acetate, sodium citrate, sodium chloride, ammonium chloride, sodium iodide, potassium iodide, copper sulfate and sodium thiocyanate, and the coagulant is aluminum sulfate, zinc hydroxide , At least one selected from iron hydroxide and iron chloride may be provided, but is not limited thereto.

According to an embodiment of the present invention, the photocurable resin provided with the digestive microcapsules 110 is provided including oligomers, monomers, photoinitiators and additives. It can be cured under light conditions (UV, visible light, electron beam (EB), LED, etc.) and finally provided in the form of a film.

According to an embodiment of the present invention, the digestive microcapsules 110 and the photocurable resin may be provided in a ratio of 1: 0.5 to 2 by weight. Preferably, the digestive microcapsules 110 and the photocurable resin are provided in a 1: 1 weight ratio. When provided in the above range, it is possible to provide an excellent fire extinguishing effect in a range that does not impair the physical properties of the finally formed fire extinguishing film 100. In addition, the digestive microcapsules 110 in the digestive film 100 may contain 30 to 80% by weight. Accordingly, the fire extinguishing film 100 according to the present invention can completely protect the fire extinguishing microcapsules 110 and burst the fire extinguishing microcapsules 110 at once in a short time when a fire occurs, thereby enabling efficient fire suppression.

According to an embodiment of the present invention, the photocurable resin is characterized in that it contains 60 to 100 parts by weight of a monomer, 1 to 30 parts by weight of a photoinitiator, and 1 to 30 parts by weight of an additive, based on 100 parts by weight of the oligomer. Thus, the photocurable resin undergoes curing under light conditions such as UV, visible light, electron beam (EB), LED, and the like. Preferably, ultraviolet (UV) rays may be provided, and in this case, non-VOCs (Volatile Organic Compounds) are environmentally friendly because no solvent is used. In addition, the photocurable resin may be provided with a weight average molecular weight of 100 to 1,000,000.

The oligomer is characterized in that it contains at least one selected from acrylic, epoxy, urethane, and silicone as a component that determines the physical properties of the cured resin. Preferably, an acrylic type may be used, and in more detail, polyacrylate, epoxy acrylate, urethane acrylate, polyester acrylate, silicone acrylate and polyether acrylate may be used. Accordingly, it is possible to provide an effect of absorbing heat or mechanical shock of the resin, adjust the elasticity of the resin, and provide excellent viscosity and flowability.

The monomer is used as a diluent, and can also serve as a crosslinking agent. The monomer may include at least one selected from acrylic, epoxy, urethane and silicone. For example, in the case of the acrylic type, polyacrylate, epoxy acrylate, urethane acrylate, polyester acrylate, silicone acrylate and polyether acrylate may be included. For example, the polyacrylic type is methyl acrylate, ethyl acrylate, hexyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, butyl cyclohexyl acrylate, isooctyl acrylate, isononyl acrylate, isobornyl acrylate , Isodecyl acrylate, decyl acrylate, lauryl acrylate, stearyl acrylate, tetrahydrofurfuryl acrylate, cyclic trimethylol formal acrylate, phenoxy polyethylene glycol acrylate, lauryl acrylate, benzyl acrylate , Epoxy ethyl acrylate, phenoxyethyl acrylate, hexanediol diacrylate, trimethylolpropane triacrylate, tripropylene glycol diacrylate, pentaerythritol tetraacrylate, tetraethylene glycol diacrylate, and di(trimethyl Allpropane) tetraacrylate, etc. may be provided.

The epoxy system may be provided with a diglycidyl ether of, for example, polyoxyalkylene glycol as a linear polymer epoxide, and a polymer epoxide having a skeletal epoxy group, for example, polybutadiene polyepoxy and a polymer epoxide having pendant epoxy groups. For example, a glycidyl methacrylate polymer or copolymer may be provided.

The urethane-based urethane resin is obtained by including mainly a diol component and a diisocyanate component, and if necessary, a UV-curable urethane resin may be provided by further including an acrylate. The diol may include an alkylene oxide-based polyol or a silicone-based polyol such as polyethylene glycol, polypropylene glycol, ethylene glycol-propylene glycol. In the case of diisocyanate, 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, hexamethylene 1,6-diisocyanate, isophorone diisocyanate, paratoluenesulfonyl isocyanate, dicyclomethane 4,4-diisocyanate , Diphenylmethane 4,4-diisocyanate, 2,4-diisocyanate, 2,2-diisocyanate, dodecane 1,12-diisocyanate, 2-ethyltetramethylene 1,4-diisocyanate and 2-methylpenta Any one or more selected from methylene 1,5-diisocyanate may be provided.

The silicone system is provided including polyorganosiloxane, and for example, a polydimethyl siloxane resin and a hydrogen silane may be provided alone or in combination.

The photoinitiator absorbs light energy and generates radical ions, cations, and the like to initiate a polymerization reaction. The photoinitiator is provided with at least one selected from acylphosphine oxide compounds, α-hydroxyketone compounds, phenyl glyoxylate compounds, and benzoin ether compounds. The photoinitiator is suitable an initiator capable of curing using a UV or LED UV lamp, for example, diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (Diphenyl (2, 4,6-Trimethylbenzonyl)phosphine oxide) may be provided, but is not limited thereto.

The additive may be specifically provided with a defoaming agent or/and a flame retardant. The antifoaming agent is added to prevent the surface tension from being lowered by third substances other than air and liquid, and to remove air and air bubbles during manufacture. In the case of a silicone-based antifoaming agent, it is manufactured by emulsification of a silicone oil compound in which fine powdered inorganic fillers such as silica, titanium dioxide, and aluminum oxide are dispersed in silicone oil.To improve the stability of the antifoaming agent, ) During the process, a method of hydrophilicizing and dispersing the silicone oil compound can be applied by appropriately adjusting the amount of emulsifier used.

In addition, the flame retardant is added to improve the combustion resistance, and it is possible to prevent the binder material from burning and deteriorating the extinguishing performance when excessive fire occurs, and is mainly used for safety requirements so as not to cause a larger fire. Organic compounds including bromine (Br), chlorine (Cl), etc. are added to react with radicals in the combustion process to stop combustion. Mainly halogen-based, phosphorus-based, nitrogen-based or inorganic flame retardants can be used.

Halogen-based flame retardants include decabromodiphenyl oxide (DBDPO), decabromodiphenyl ethane (DBDPE), hexabromocyclododecane (HBCD, Hexabromocyclododecane), tetrabromobisphenol-A (TBBA, Tetrabromobisphenol). -A), tetrabromobisphenol A bis 2,3 -dibromopropyl ether (BDDP, Tetrabromobisphenol A Bis (2,3-dibromopropyl ether)) may be provided, but is not limited thereto.

The phosphorus-based flame retardant may be selected from among red, phosphoric ester or phosphate, phosphonate, phosphinate, phosphine oxide, and phosphhazene.

Nitrogen-based flame retardants include melamine, melamine cyanurate, triphenyl isocyanurate, melamine phosphate, melamine pyrophosphate, ammonium polyphosphate, alkyl An amine phosphate (alkyl amine phosphate), piperazine acid polyphosphate (piperazine acid polyphosphate), ammonium phosphinate, etc. may be provided, but is not limited thereto.

Inorganic flame retardants are metal-based inorganic oxides such as antimony trioxide, antimony tetraoxide, antimony pentoxide, sodium antimony carbonate, antimony metal, antimony trichloride, antimony pentoxide, barium metaborate, zirconium oxide, zinc borate, zinc stannate, magnesium hydroxide, aluminum hydroxide, etc. May be provided, but is not limited thereto.

That is, in the present invention, the photocurable resin provided together with the digestive microcapsules 110 is provided as a film by photocuring, and the shell of the digestive microcapsules contained in the film is softened by external heat, The extinguishing agent may be explosively ejected from the digestive microcapsules by the vaporization energy of the drug. Therefore, when a fire occurs, the fire can be quickly extinguished by the extinguishing agent in the microcapsule 110 for extinguishing at a specific temperature or higher.

According to an embodiment of the present invention, the film 100 including the digestive microcapsules 110 is selected from the base layer 200, the release layer 300, and the heat insulation/insulation layer 400 on at least one side. It characterized in that it includes any one or more.

Referring to FIG. 3, it is shown that the adhesive layer 200 is laminated on one surface of the film 100 including the digestive microcapsules 110. Accordingly, it can be used by attaching it to a desired adherend if necessary.

Referring to FIG. 4, it is shown that the back layer 300 is stacked on one side of the film 100 including the digestive microcapsule 110. Including the back layer 300 may protect the surface of the film 100 as needed.

Referring to FIG. 5, a tape structure including an adhesive layer 200 and a release layer 300 is provided on one side of the film 100 including the digestive microcapsule 110 to be utilized.

Referring to Figure 6, the heat insulation/insulation layer 400 may be laminated on the fire extinguishing film 100 including the fire extinguishing microcapsule 110 according to the present invention, and thus, electronic devices, communication devices, and other wires It is used in parts that need insulation such as cables, and provides insulation and insulation effects. In addition, excellent electrical resistance such as surface resistance and volume resistance are also provided.

In addition, it is not limited to the above example, and can be applied to various structures including films, of course.

According to an embodiment of the present invention, the thickness of the film 100 including the digestive microcapsules 110 may be provided in the range of 10 to 10,000 μm. It can be attached in a film or tape structure by adjusting the thickness as necessary. That is, it can be manufactured according to the thickness and attached in the form of a film or tape to a place where there is always a risk of fire, such as an electric circuit breaker, or to a space where heat is generated inside. In addition, the micro-encapsulation 110 for fire extinguishing in various very small spaces that can extinguish a fire by inserting it in the form of a film in a very small space such as an outlet, a PCB board on which electronic components are mounted, an insulating CAP, a secondary battery and an electronic cigarette. Can be applied.

According to an embodiment of the present invention, the adhesive layer 200 may use a component used as an adhesive, and an acrylic, silicone, urethane, epoxy, natural or synthetic rubber component, etc. may be used. In the case of acrylic, for example, an adhesive component including 2-ethylhexyl acrylate, butyl acrylate, vinyl acetate, acrylic acid, and the like may be used.

According to an embodiment of the present invention, the release layer 300 refers to a paper or film applied to protect the adhesive layer or the adhesive surface of the film, for example, polyethylphthalate (PET), polypropylene (PP), stretched polypropylene (OPP), polybutylene terephthalate (PBT), polybutylene naphthalate (PBN) and at least one selected from polyimide (PI) is provided. Preferably, polyethylphthalate (PET) may be provided, which is advantageous in that hygroscopicity is low, heat resistance is excellent, and sufficient strength and bending can provide flexible properties.

According to an embodiment of the present invention, the heat insulating/insulating layer 400 may be provided with polyimide, polyester, polyamide, polyether sulfone, mica, paper, film, and the like. The thickness is provided in the range of 10 to 5,000 μm, and can be used for parts requiring insulation, such as electronic devices, communication devices, and other wires and cables, to provide insulation and insulation effects.

Referring to Figure 6, the heat insulation/insulation layer 400 may be laminated on the fire extinguishing film 100 including the fire extinguishing microcapsule 110 according to the present invention, and thus, electronic devices, communication devices, and other wires It is used in parts that need insulation such as cables, and provides insulation and insulation effects. In addition, excellent electrical resistance such as surface resistance and volume resistance are also provided.

In addition, it is not limited to the above example, and can be applied to various structures including films, of course.

According to an embodiment of the present invention, the thickness of the film 100 including the digestive microcapsules 110 may be provided in the range of 10 to 10,000 μm. It can be attached in a film or tape structure by adjusting the thickness as necessary. That is, it can be manufactured according to the thickness and attached in the form of a film or tape to a place where there is always a risk of fire, such as an electric circuit breaker, or to a space where heat is generated inside. In addition, the micro-encapsulation 110 for fire extinguishing in various very small spaces that can extinguish a fire by inserting it in the form of a film in a very small space such as an outlet, a PCB board on which electronic components are mounted, an insulating CAP, a secondary battery and an electronic cigarette. Can be applied.

According to an embodiment of the present invention, the adhesive layer 200 may use a component used as an adhesive, and an acrylic, silicone, urethane, epoxy, natural or synthetic rubber component, etc. may be used. In the case of acrylic, for example, an adhesive component including 2-ethylhexyl acrylate, butyl acrylate, vinyl acetate, acrylic acid, and the like may be used.

According to an embodiment of the present invention, the release layer 300 refers to a paper or film applied to protect the adhesive layer or the adhesive surface of the film, for example, polyethylphthalate (PET), polypropylene (PP), stretched polypropylene (OPP), polybutylene terephthalate (PBT), polybutylene naphthalate (PBN) and at least one selected from polyimide (PI) is provided. Preferably, polyethylphthalate (PET) may be provided, which is advantageous in that hygroscopicity is low, heat resistance is excellent, and sufficient strength and bending can provide flexible properties.

According to an embodiment of the present invention, the heat insulating/insulating layer 400 may be provided with polyimide, polyester, polyamide, polyether sulfone, mica, paper, film, and the like. The thickness is provided in the range of 10 to 5,000 μm, and can be used for parts requiring insulation, such as electronic devices, communication devices, and other wires and cables, to provide insulation and insulation effects.

First, the fire extinguishing microcapsule 110 polymerizes at the interface between a hydrophobic organic solvent containing a fire extinguishing agent and an aqueous surfactant to form a shell, and matures the shell to maintain liquidity of the fire extinguishing agent and solidifies only the shell. Stirred to generate microcapsules, after which the microcapsules 110 are precipitated and the liquid is removed. After washing the microcapsules 110 with an aqueous solution, they are selected and dried at low temperature. In this case, the content of the fire extinguishing agent is 80 to 97%.

According to an embodiment of the present invention, mixing a photoinitiator and a monomer, and adding an oligomer and an additive to prepare a photocurable resin; Preparing a photocurable resin mixture by putting the digestive microcapsules 110 into the photocurable resin; A method of manufacturing a film 100 including a microcapsule 110 for digestion including; photocuring the photocurable resin mixture to prepare a film.

First, the initiator absorbs light energy with a photoinitiator, generates radical ions, cations, etc. to initiate a polymerization reaction, and the acylphosphine oxide-based compound, α-hydroxyketone-based compound, phenyl glyoxylate-based compound and One or more selected from benzoin ether compounds may be provided.

The monomer serves as a diluent and a crosslinking agent, and may include at least one selected from acrylic, epoxy, urethane, and silicone. For example, in the case of acrylic, polyacrylate, epoxy acrylate, urethane acrylate, polyester acrylate, silicone acrylate, and polyether acrylate may be included. Polyacrylate is methyl acrylate, ethyl acrylate, hexyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, butyl cyclohexyl acrylate, isooctyl acrylate, isononyl acrylate, isobornyl acrylate, isodecyl Acrylate, decyl acrylate, lauryl acrylate, stearyl acrylate, tetrahydrofurfuryl acrylate, cyclic trimethylolformal acrylate, phenoxy polyethylene glycol acrylate, lauryl acrylate, benzyl acrylate, epoxy ethyl Acrylate, phenoxyethyl acrylate, hexanediol diacrylate, trimethylolpropane triacrylate, tripropylene glycol diacrylate, pentaerythritol tetraacrylate, tetraethylene glycol diacrylate, and di(trimethylolpropane) At least one selected from tetraacrylate is provided, and it is mixed with a photoinitiator, and a defoaming agent and a flame retardant are added as oligomers and additives to prepare a photocurable resin.

In this case, the photocurable resin is characterized in that it contains 60 to 100 parts by weight of a monomer, 1 to 30 parts by weight of a photoinitiator, and 1 to 30 parts by weight of an additive based on 100 parts by weight of the oligomer. Now, the detailed information is the same as the above description, and description of overlapping ranges will be omitted.

A photocurable resin mixture is prepared by additionally adding the digestive microcapsules 110 to the photocurable resin prepared as described above. In particular, the photocurable resin mixture is characterized in that the weight ratio of the photocurable resin: digestive microcapsules 110 is 1: 0.5 to 2. Preferably it may be provided as 1: 1. Accordingly, it is possible to provide an excellent fire extinguishing effect in a range that does not impair the physical properties of the finally produced film 100. In addition, in this case, the microcapsules 110 for digestion in the film 100 may contain 30 to 80% by weight. Accordingly, the film 100 according to the present invention can completely protect the fire extinguishing microcapsules 110 while simultaneously popping the fire extinguishing microcapsules 110 in a short time when a fire occurs, thereby enabling efficient fire suppression.

According to an embodiment of the present invention, the photocuring is cured under UV conditions of 100mJ/cm ² to 1,000 mJ/cm ² . Preferably, when provided in the range of 200 mJ/cm ² to 300 mJ/cm ² , the photopolymerization initiator is decomposed, so that a sufficient polymerization reaction may proceed. Accordingly, a film 100 including the finally cured digestive microcapsules 110 is provided.

The film 100 including the extinguishing microcapsules 110 manufactured by the above manufacturing method can be applied in a place where danger always exists or in various spaces, thereby preventing a fire or providing an effect of quickly extinguishing it. In particular, it can be applied to various spaces such as very small spaces such as secondary batteries and electronic cigarettes. In addition, since it can provide excellent ductility and heat dissipation effect, it can be expected to help prevent fire.

Hereinafter, the configuration and operation of the present invention will be described in more detail through preferred embodiments of the present invention. However, this is presented as a preferred example of the present invention and cannot be construed as limiting the present invention in any sense. Contents not described herein can be sufficiently technically inferred by those skilled in the art, and thus description thereof will be omitted.

<Preparation of film containing microcapsules for fire extinguishing>

Prepare photoinitiator TPO 0.5 to 1 parts by weight and PI184 4 to 5 parts by weight, monomer CTFA 1 to 2 parts by weight, HDDA 2 to 3 parts by weight, THFA 1 to 2 parts by weight, IBOA 6 to 7 parts by weight, SR217 7 to 8 parts by weight were mixed. Here, 14 to 15 parts by weight of CN8887, 9 to 10 parts by weight of PU3000, 0.1 to 0.3 parts by weight of BYK333 and 4 to 5 parts by weight of Otsuka SPB-100 were added as an oligomer to prepare a photocurable resin. Into the photocurable resin prepared in Preparation Example 1, the weight ratio of the digestive microcapsules was 1: 1, and the digestive microcapsules were added to prepare a photocurable resin mixture. This was cured under UV 250 mJ/cm ² conditions. In this case, the curing condition is (2600W, temperature 40°C).

100: film containing digestive microcapsules
110: digestive microcapsules
111: core
112: shell
200: adhesive layer
300: release layer
400: insulation/insulation layer

Claims (17)

It contains digestive microcapsules and photocurable resins,
The digestive microcapsules have a core-shell structure,
The core contains 80 to 97% by weight of a fire extinguishing agent,
The shell surrounds the core and contains a precipitating agent or a coagulant as a non-porous polymer polymer,
The photocurable resin contains 60 to 100 parts by weight of a monomer, 1 to 30 parts by weight of a photoinitiator, and 1 to 30 parts by weight of an additive, based on 100 parts by weight of the oligomer,
The fire extinguishing agent film containing microcapsules for fire extinguishing, characterized in that the phase change to the gas phase at a temperature of 30 ℃ to 100 ℃. The method of claim 1,
The fire extinguishing microcapsules and the photocurable resin film comprising a fire extinguishing microcapsules, characterized in that it comprises a 1: 1 weight ratio. The method of claim 1,
The extinguishing agent is 2-iodine-1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) and Iodofluorocarbon (FIC-217I1 or FIC-13I1), 1,1,1,2,2- Pentafluoroethane (CF ₃ CF ₂ H, HFC-125), 1,1,1,2,3,3,3-Heptafluoropropane (CF ₃ CHFCF ₃ ), Chlorotetrafluoroethane (CHClFCF ₃ ), dodecafluoro-2-methylpentan-3-one (FK-5-1-12, CF ₃ CF ₂ C(O)CF(CF ₃ ) ₂ )), 1-chloro-1,2,2,2-tetrafluoroethane(C ₂ HClF ₄ ), 2-chloro- 1,1,1,2-tetrafluoroethane(CHClFCF ₃ , HCFC-124), decafluorocyclohexanone (perfluorocyclohexanone), CF ₃ CF ₂ C(O)CF(CF ₃ ) ₂ (-1 ,1,1,2,4,4,5,5,5-nonafluoro-2-trifluoromethyl-butan-3one), (CF ₃ ) ₂ CFC(O)CF(CF ₃ ) ₂ ( -1,1,1,2,4,5,5,5,6,6,6,-octafluoro-2,4,-bis(trifluoromethyl)pentan-3-one), CF ₃ CF ₂ C(O)CF ₂ CF ₂ CF ₃ , CF ₃ C(O)CF(CF ₃ ) ₂ , 1,1,1,3,3,4,4,5,5,6,6,7,7 ,8,8,8,-hexadodecafluorooctan-2-one (CF ₃ CF ₂ CF ₂ CF ₂ CF ₂ CF ₂ C(O)CF ₃ ), 1,1,1,3,4,4 ,4,-heptafluoro-3-trifluoromethylbutan-2-one (CF ₃ C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,4,4,5,5, -Octafluoro-2-trifluoromethylpentan-3-one (HCF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,4,4,5,5,6 ,6,6,-undecafluoro-2-trifluoromethylhexan-3-one (CF ₃ CF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ), 1-chloro-,1,1, 3,4,4,4-hexafluoro-3-tri Fluoromethyl-butan-2-one ((CF ₃ ) ₂ CFC(O)CF ₂ CL), 1,1,1,2,2,4,4,5,5,6,6,6-dodeca Fluorohexan-3-one (CF ₃ CF ₂ C(O) CF ₂ CF ₂ CF ₃ ), 1,1,1,5,5,5,-hexafluoropentane-2-4-dione (CF ₃ C(O)CH ₂ C(O)CF ₃ ), 1,1,1,2,5,6,6,6-octafluoro-2,5-bis(trifluoromethyl)hexane-3,4 -Dion ((CF ₃ ) ₂ CFC(O)C(O)C(O)CF(CF ₃ ) ₂ ), 1,1,1,2,2,3,3,5,5,6,6, 7,7,7,-tetradecafluoroheptan-4-one (CF ₃ CF ₂ CF ₂ C(O) CF ₂ CF ₂ CF ₃ ), 1,1,1,3,3,4,4,4 -Octafluorobutal-2-one (CF ₃ C(O)CF ₂ CF ₃ ), 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4 -Trifluoromethylpentan-3-one (CF ₃ OCF ₂ CF ₂ C(O)CF(CF ₃ ) ₂ ) and 1,1,1,2,4,4,5,5,6,6,7 ,7,7,-tridecafluoro-2-trifluoromethylheptan-3-one (CF ₃ CF ₂ CF ₂ CF ₂ C (O) CF (CF ₃ ) ₂ ), characterized in that at least one selected from Film containing digestive microcapsules. The method of claim 1,
The shell is a polyurethane resin, polyurea resin, polyamide resin, polyester resin, polycarbonate resin, aminoaldehyde resin, melamine resin, polystyrene resin, styrene-acrylate copolymer resin, styrene-methacrylate copolymer resin, Film comprising a digestive microcapsule, characterized in that at least one selected from gelatin, polyvinyl alcohol, phenol formaldehyde resin, and resorcinol formaldehyde resin. The method of claim 1,
The precipitant is a film comprising a digestive microcapsule, characterized in that at least one selected from potassium acetate, sodium citrate, sodium chloride, ammonium chloride, sodium iodide, potassium iodide, copper sulfate and sodium thiocyanate. The method of claim 1,
The coagulant film comprising a digestive microcapsule, characterized in that at least one selected from aluminum sulfate, zinc hydroxide, iron hydroxide and iron chloride. delete The method of claim 1,
The oligomer is a film containing microcapsules for digestion, characterized in that it comprises at least one selected from acrylic, epoxy, urethane and silicone. The method of claim 1,
The monomer is a film comprising a fire extinguishing microcapsule, characterized in that it comprises at least one selected from acrylic, epoxy, urethane and silicone. The method of claim 1,
The photoinitiator is an acylphosphine oxide-based compound, an α-hydroxyketone-based compound, a phenyl glyoxylate-based compound, and a film comprising a digestive microcapsule, characterized in that at least one selected from the benzoin ether-based compound. The method of claim 1,
The additive is a film comprising a microcapsule for digestion, characterized in that it contains at least one or more selected from a defoamer and a flame retardant. The method of claim 1,
The film is a film comprising a fire extinguishing microcapsules, characterized in that it comprises at least any one or more selected from a base layer, a release layer, a heat insulating / insulating layer on at least one side. The method of claim 1,
Film containing microcapsules for digestion, characterized in that the thickness of the film is 10 to 10,000㎛. Mixing a photoinitiator and a monomer, and adding an oligomer and an additive to prepare a photocurable resin;
Preparing a photocurable resin mixture by putting a digestive microcapsule into the photocurable resin; And
A method of manufacturing a film including microcapsules for digestion comprising; photocuring the photocurable resin mixture to prepare a film,
The photocurable resin contains 60 to 100 parts by weight of a monomer, 1 to 30 parts by weight of a photoinitiator, and 1 to 30 parts by weight of an additive, based on 100 parts by weight of the oligomer,
The fire extinguishing microcapsules have a core-shell structure, the core contains 80 to 97% by weight of a fire extinguishing agent, the shell surrounds the core, and contains a precipitating agent or a coagulant as a non-porous polymer polymer,
The fire extinguishing agent is a method for producing a film comprising a microcapsule for fire extinguishing, characterized in that the phase change to the gas phase at a temperature of 30 ℃ to 100 ℃. delete The method of claim 14,
In the photo-curable resin mixture, the weight ratio of the photo-curable resin: the digestive microcapsules is 1: 1. Method for producing a film comprising the microcapsules for digestion. The method of claim 14,
The photo-curing is 100mJ/cm ² to 1,000mJ/cm ^{2 A} method of manufacturing a film comprising a digestive microcapsule, characterized in that it proceeds.

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