KR102412547B1 - Adhesive film for extinguishing fire and repelling insects and method of manufacturing the same - Google Patents

Abstract

Insect repellent and fire-extinguishing adhesive film is formed on the base layer, the base layer, the adhesive layer containing a halogen-based flame retardant, the adhesive layer is formed on the adhesive layer, comprising a microcapsule for fire extinguishing, a color pigment and a photocurable binder resin It includes a first coating layer and a second coating layer formed on the first coating layer and including insect repellent microcapsules and a photocurable binder resin. Accordingly, the adhesive film can simultaneously implement an insect repellent function and a fire extinguishing function.

Description

Adhesive film for insect repellent and fire extinguishing and its manufacturing method {ADHESIVE FILM FOR EXTINGUISHING FIRE AND REPELLING INSECTS AND METHOD OF MANUFACTURING THE SAME}

Embodiments of the present invention relate to an insect-repellent and fire-extinguishing adhesive film and a method for manufacturing the same, and more particularly, insect-repellent and fire extinguishing capable of suppressing the ignition of electronic devices or the occurrence of fires due to insect approach or self-overheating. An adhesive film for use and a manufacturing method thereof are provided.

In electronic devices such as smart phones, computers, electric motors, and distribution boards, heat of electronic devices due to electric leakage or overheating of electronic circuits and fire accidents are occurring.

In particular, as electronic devices employing batteries are widespread, accidents in which electronic devices are exploded due to overheating of batteries occur frequently. Furthermore, an electric leakage occurs between terminals of electronic devices according to the approach of insects, and fire accidents due to the electric leakage also occur.

Accordingly, various studies are being conducted to prevent overheating of the electronic device. In addition, research on an adhesive film for suppressing electric leakage of the electronic device and extinguishing a fire generated during ignition is being actively conducted.

Embodiments of the present invention provide an insect-repellent and fire-extinguishing adhesive film that enables digestion while suppressing the access of insects.

Embodiments of the present invention provide a method of manufacturing an adhesive film that enables digestion while suppressing the access of insects.

Insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention, the base layer, formed on the base layer, the adhesive layer comprising a halogen-based flame retardant, is formed on the adhesive layer, microcapsules for fire extinguishing; A first coating layer including a color pigment and a photocurable binder resin, and a second coating layer formed on the first coating layer, including insect repellent microcapsules and a photocurable binder resin.

In one embodiment of the present invention, the microcapsule for fire extinguishing may be mixed with a liquid extinguishing agent and a gas extinguishing agent.

In one embodiment of the present invention, the first coating layer, 40.0 to 60.0 wt% firefighting microcapsule, 30.0 to 50.0 wt% photocurable binder resin, 0.1 to 5.0 wt% color pigment, and 0.1 to 5.0 wt% photocuring initiator may include

In one embodiment of the present invention, the insect repellent microcapsule, pyrethrum, citronella oil, deltamethrin, cypermethrin (cyjpermethrin), kadethrin (kadethrin) ) esbiol, permethrin, bioallethrin, cyhalothrin, esbiothrin, prallethrin, dichlorovos, It may include at least one of chlorpyrifos, diazinon, and propetnamphos.

In one embodiment of the present invention, the second coating layer, 1.0 to 20.0% by weight of insect repellent microcapsules, 75.0 to 95.0% by weight of the photocurable binder resin, and 0.1 to 5.0% by weight of the photocuring initiator may include.

In the method of manufacturing an insect repellent and fire extinguishing adhesive film according to an embodiment of the present invention, an adhesive layer including a flame retardant material is formed on a base layer, and on the adhesive layer, extinguishing microcapsules and color pigments and a first coating layer including a photocurable binder resin. On the first coating layer, a second coating layer including insect repellent microcapsules and a photocurable binder resin is formed.

In one embodiment of the present invention, each of the first and second coating layers may be formed through a casting process or roll coating.

The adhesive film for insect repellent and fire extinguishing according to the present invention includes a first coating layer including microcapsules for fire extinguishing and a second coating layer including microcapsules for insect repellency. Accordingly, the adhesive film can be applied in various spaces or places where there is always a fire risk, and thus provides an effect of preventing or quickly suppressing a fire and an effect of exterminating pests. That is, when a fire occurs, the microcapsule is ruptured at the same time within a short time, so that the fire can be extinguished quickly and efficiently, and the occurrence of a fire due to a short circuit that may occur when pests approach can be suppressed at the same time.

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

1 is a cross-sectional view for explaining an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention.
2 is a flowchart for explaining a method of manufacturing an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention should not be construed as being limited to the embodiments described below and may be embodied in various other forms. The following examples are provided to sufficiently convey the scope of the present invention to those skilled in the art, rather than being provided so that the present invention can be completely completed.

In embodiments of the present invention, when an element is described as being disposed or connected to another element, the element may be directly disposed or connected to the other element, and other elements may be interposed therebetween. it might be Conversely, when one element is described as being directly disposed on or connected to another element, there cannot be another element between them. Although the terms first, second, third, etc. may be used to describe various items such as various elements, compositions, regions, layers and/or portions, the items are not limited by these terms. will not

The terminology used in the embodiments of the present invention is only used for the purpose of describing specific embodiments, and is not intended to limit the present invention. Further, unless otherwise limited, all terms including technical and scientific terms have the same meaning as understood by one of ordinary skill in the art of the present invention. The above terms, such as those defined in ordinary dictionaries, shall be interpreted to have meanings consistent with their meanings in the context of the related art and description of the present invention, ideally or excessively outwardly intuitive, unless clearly defined. will not be interpreted.

Embodiments of the present invention are described with reference to schematic diagrams of ideal embodiments of the present invention. Accordingly, changes from the shapes of the diagrams, eg, changes in manufacturing methods and/or tolerances, are those that can be fully expected. Accordingly, the embodiments of the present invention are not to be described as being limited to the specific shapes of the areas described as diagrams, but rather to include deviations in the shapes, and the elements described in the drawings are entirely schematic and their shape It is not intended to describe the precise shape of the elements, nor is it intended to limit the scope of the present invention.

1 is a cross-sectional view for explaining an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention.

Referring to FIG. 1 , an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention includes a base layer 105 , an adhesive layer 110 , a first coating layer 130 , and a second coating layer 150 .

The base layer 105 includes polyethyl phthalate (PET), polypropylene (PP), stretched polypropylene (OPP), polybutylene terephthalate (PBT), polybutylene naphthalate (PBN) and polyimide (PI) and It may be made of the same related material. The base layer 105 corresponds to a release paper or a release film. The base layer 105 may be released and attached to an object using an adhesive layer. Examples of the object include a smartphone battery, a computer, an electric motor, a power distribution board, and the like.

The adhesive layer 110 is formed on the base layer 105 . The adhesive layer 110 may include a flame retardant material. For example, the adhesive layer 110 may include a halogen-based flame retardant and an adhesive resin such as acrylic or urethane silicone. Accordingly, when the base layer 105 is released, the adhesive layer 110 may be adhered to the object.

The halogen-based flame retardant is decabromodiphenyl oxide (DBDPO, Decabromodiphenyl oxide), decabromodiphenyl ethane (DBDPE, Decabromodiphenyl ethane), hexabromocyclododecane (HBCD, Hexabromocyclododecane), tetrabromobisphenol-A (TBBA, Tetrabromobisphenol-A), tetrabromobisphenol A bis 2,3-dibromopropyl ether (BDDP, Tetrabromobisphenol A Bis (2,3-dibromopropyl ether), etc. may be provided, but are not limited thereto.

The first coating layer 130 is formed on the adhesive layer 105 . The first coating layer 130 may include a microcapsule for fire extinguishing 135 , a color pigment 137 , and a photocurable binder resin. Accordingly, upon ignition, the microcapsule 135 included in the first coating layer 130 is ruptured, and the extinguishing agent provided therein is ejected to suppress the fire. In addition, since the first coating layer 130 includes a color pigment 137, the insect repellent and fire extinguishing film implements a fluorescent color, thereby exposing the attachment location so that the attachment location can be easily confirmed.

The microcapsule 135 for digestion has a core-shell structure. The core contains an extinguishing agent in an amount of 40 to 60% by weight, and the shell surrounds the core, and is made of a non-porous polymer and may further include a precipitating agent or a coagulant.

The digestive microcapsules 135 have a circular shape having an average diameter of 5 to 500 μm.

The microcapsule 135 is vaporized at a specific temperature in case of fire, and may react as if the shell is ruptured by the vaporization energy of the extinguishing agent. A plurality of fire extinguishing microcapsules 135 explosively and simultaneously react with each other to eject a sufficient amount of vaporized fire extinguishing agent to extinguish the fire.

In addition, when a fire occurs, the extinguishing agent may be vaporized and expanded by heat, but does not react (rupture, leak) due to the durability and airtightness of the shell 112 formed of the non-porous polymer, and at a specific temperature, especially in case of a fire The fire extinguishing agent vaporized during the reaction acts directly on the ignition point of the fire, cutting off the four conditions of combustion: fuel (flammables), oxygen (air), heat (ignition source), and heat (ignition source) and chain reaction during chain reaction. can suppress

In addition, the fire extinguishing agent can be used as a material with excellent fire extinguishing performance based on a fire extinguishing agent that is not limited 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 Rohexan-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 ) may be provided. .

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

In addition, the extinguishing agent is provided in a liquid phase at room temperature, phase change to a gaseous phase at a temperature of 90 ℃ to 150 ℃. Preferably, by changing the weather at 100° C. to 120° C., when a fire occurs, the fire extinguishing microcapsule 135 ruptures to suppress the fire.

The shell serves to contain the extinguishing agent by enclosing the outside of the core made of the extinguishing agent, and weather resistance and airtightness must be maintained to protect the extinguishing agent from leaking into the atmosphere by the external environment at normal times or up to a specific temperature. However, at 90 ℃ to 150 ℃, the shell may be ruptured due to the phase change from liquid to gaseous phase of the extinguishing agent and softening of the shell at high temperature. In this case, the shell may have a thickness of 50 to 2,000 nm.

In addition, in order to perform a role by a temperature reaction, it is preferable that the shell is made of a non-porous polymer. 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 one or more selected from, but not limited thereto.

For example, the microcapsule 130 for digestion is a fluorinated ketone (Fluoroketone), a liquid extinguishing agent such as Dodecafluoro-2 methylpentan-3-one, and carbon dioxide (CO ₂ ), chlorofluorocarbon ChloroFluoroCarbon) and CFC (aka. It can be used by mixing a gas extinguishing agent such as Freon gas). Accordingly, the microcapsule for fire extinguishing may have an excellent extinguishing effect regardless of the type of ignition material.

The color pigment 137 may have a fluorescent color. The color pigment 137 may be easily identified as an adhesive film by exposing an attachment position of the adhesive film.

The photo-curable binder resin may be cured under light conditions (UV, visible light, electron beam (EB), LED, etc.).

The photocurable binder resin may include 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 photocurable binder resin has a weight average molecular weight of 100 to 1,000,000 may be provided.

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

In one embodiment of the present invention, the first coating layer 130, 40.0 to 60.0% by weight of microcapsules for firefighting 135, 30.0 to 50.0% by weight of photocurable binder resin, 0.1 to 5.0% by weight of color pigment 137 and 0.1 to 5.0% by weight of a photocuring initiator may be included.

The photoinitiator absorbs light energy to generate radical ions, cations, and the like to initiate polymerization. The photoinitiator is provided with at least one selected from an acylphosphine oxide-based compound, an α-hydroxyketone-based compound, a phenyl glyoxylate-based compound, and a benzoin ether-based compound. As the photoinitiator, an initiator that can be cured using UV or LED UV lamp is suitable, 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 second coating layer 150 is formed on the first coating layer 130 . The second coating layer 150 includes insect repellent microcapsules 155 and a photocurable binder resin.

The insect repellent microcapsule 155 may have a core-shell structure. The core corresponding to the inside of the core cell structure is .pyrethrum, citronella oil, deltamethrin, cyjpermethrin, kadethrin esviol ( e sbiol), permethrin, bioallethrin, cyhalothrin, esbiothrin, prallethrin, dichlorovos, glorpiriphos (chlorpyrifos), diazinon (Diazinon) and propetnamphos (Propetnamphos) may include a repellent having at least one.

For example, as a component composition of the insect repellent, 4-5% by weight of melamine resin, Styrene maleic anhydride monomethyl 2-3%, Citronella 25 %, and the remainder may consist of water.

The photocurable binder resin included in the second coating layer 150 may be made of the same material as the photocurable resin included in the first coating layer 130 . Accordingly, the first and second coating layers 130 and 150 may be firmly coupled to each other.

In one embodiment of the present invention, the second coating layer 130, 1.0 to 20.0 wt% insect repellent microcapsule 135, 75.0 to 95.0 wt% photocurable binder resin, and 0.1 to 5.0 wt% photocuring initiator may include

According to embodiments of the present invention, the first coating layer 130 includes the fire extinguishing microcapsule 135 and the photocurable binder resin, so that the shell of the fire extinguishing microcapsule 135 is softened by external heat, The extinguishing agent can be explodingly ejected from the microcapsule for fire extinguishing by the vaporization energy of the extinguishing agent. Therefore, when a fire occurs, the fire can be quickly suppressed by the extinguishing agent in the microcapsule 135 for extinguishing at a specific temperature or higher.

In addition, the second coating layer 150 may have an effect of repelling or further eradicating pests such as mosquitoes by including the insect repellent microcapsules 155 .

2 is a flowchart illustrating a method of manufacturing an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention.

1 and 2, in the method for manufacturing an insect repellent and fire-extinguishing adhesive film according to an embodiment of the present invention, an adhesive layer 110 made of a flame retardant material is formed on the base layer 105 ( S110).

The base layer 105 includes polyethyl phthalate (PET), polypropylene (PP), stretched polypropylene (OPP), polybutylene terephthalate (PBT), polybutylene naphthalate (PBN) and polyimide (PI) and It may be made of the same related material. The base layer 105 corresponds to a release paper or a release film. The base layer 105 may be released and attached to an object using an adhesive layer. Examples of the object include a smartphone battery, a computer, an electric motor, a power distribution board, and the like.

In order to form the adhesive layer 110 on the base layer 105 , a casting process or a roll coating process may be performed. The adhesive layer 110 may include a flame retardant material. For example, the adhesive layer may include a halogen-based flame retardant and an adhesive resin such as acrylic or urethane silicone. Accordingly, when the base layer 105 is released, the adhesive layer may be adhered to the object.

Next, a first coating layer 130 including microcapsules for digestion, a color pigment, and a photocurable binder resin is formed on the adhesive layer 110 ( S120 ). The first coating layer may be formed through a casting process or a roll coating process.

Subsequently, on the first coating layer 130 , a second coating layer 150 including the insect repellent microcapsules 155 and a photocurable binder resin may be formed ( S150 ). Here, the two coating layers may be formed through a casting process or roll coating.

In an embodiment of the present invention, before forming the first coating layer 130 , a release film (not shown) may be formed on the adhesive layer 110 . The release film may protect the upper surface of the adhesive layer 110 from foreign matter.

105: base layer 110: adhesive layer
130: first coating layer 150: second coating layer

Claims (8)

base layer;
an adhesive layer formed on the base layer and including a halogen-based flame retardant;
a first coating layer formed on the adhesive layer and including microcapsules for digestion, a color pigment, and a photocurable binder resin; and
An insect repellent and fire extinguishing adhesive film formed on the first coating layer, and comprising a second coating layer comprising insect repellent microcapsules and a photocurable binder resin. According to claim 1, wherein the microcapsule for fire extinguishing is an insect repellent and fire-extinguishing adhesive film, characterized in that a mixture of a liquid fire extinguishing agent and a gas fire extinguishing agent. According to claim 1, wherein the first coating layer,
40.0 to 60.0 wt% firefighting microcapsules;
30.0 to 50.0 wt% of a photocurable binder resin;
0.1 to 5.0% by weight color pigment; and
Insect repellent and fire-extinguishing adhesive film, characterized in that it contains 0.1 to 5.0% by weight of a photocuring initiator. The method according to claim 1, wherein the insect repellent microcapsule is pyrethrum, citronella oil, deltamethrin, cyjpermethrin, kadesrin (kadethrin) esviol ( e sbiol), permethrin, bioallethrin, cyhalothrin, esbiothrin, prallethrin, dichlorovos, glorpiriphos (chlorpyrifos), diazinon (Diazinon) and propetnamphos (Propetnamphos) insect repellent and fire-extinguishing adhesive film comprising at least one. According to claim 1, wherein the second coating layer,
1.0 to 20.0% by weight of insect repellent microcapsules;
75.0 to 95.0 wt% of a photocurable binder resin; and
Insect repellent and fire-extinguishing adhesive film, characterized in that it contains 0.1 to 5.0% by weight of a photocuring initiator. delete forming an adhesive layer including a flame retardant material on the base layer;
forming a first coating layer comprising microcapsules for fire extinguishing, a color pigment and a photocurable binder resin on the adhesive layer; and
On the first coating layer, the method of manufacturing an insect repellent and fire-extinguishing adhesive film comprising the step of forming a second coating layer comprising the insect repellent microcapsules and a photocurable binder resin. The method of claim 7, wherein each of the first and second coating layers is formed through a casting process or roll coating.

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