KR102148268B1 - Multi-functional textile having function of electromagnetic wave shielding and thermal radiation - Google Patents

Multi-functional textile having function of electromagnetic wave shielding and thermal radiation Download PDF

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KR102148268B1
KR102148268B1 KR1020190004989A KR20190004989A KR102148268B1 KR 102148268 B1 KR102148268 B1 KR 102148268B1 KR 1020190004989 A KR1020190004989 A KR 1020190004989A KR 20190004989 A KR20190004989 A KR 20190004989A KR 102148268 B1 KR102148268 B1 KR 102148268B1
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fabric
layer
electromagnetic wave
heat dissipation
wave shielding
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KR20200088571A (en
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박재경
지영주
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삼성염직(주)
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 전자파 차폐는 물론 방열기능 함께 구비한 다기능 원단에 관한 것으로, 본 발명에 따른 다기능 원단은 전자파 차폐 및 방열이 가능한 원단으로, 한 쌍의 원단기재층, 상기 한 쌍의 원단기재층 중 어느 하나의 원단기재층 상에 적층되는 방열층, 상기 방열층 상에 적층되는 다공성 원단층, 및 상기 다공성 원단층과 상기 한 쌍의 원단기재층 중 다른 하나의 원단기재층 사이에 적층되는 전자파 차폐층을 구비하는 것을 특징으로 한다.
본 발명의 다기능 원단은 원단의 양면에 서로 다른 기능인 전자파 차폐와 방열의 복합 기능이 발현될 수 있으며, 섬유나 수지와 소재를 이용함에 따라 경박단소한 구조로 이루어져 대형 전자제어 설비에서 소형 전자기기에 이르기까지 다양한 분야에 적용이 가능하다.The present invention relates to a multifunctional fabric provided with electromagnetic wave shielding as well as heat dissipation function, and the multifunctional fabric according to the present invention is a fabric capable of electromagnetic wave shielding and heat dissipation, and any one of a pair of fabric base layers and the pair of fabric base layers A heat dissipation layer laminated on one fabric base layer, a porous fabric layer laminated on the heat dissipation layer, and an electromagnetic wave shielding layer laminated between the porous fabric layer and the other fabric base layer of the pair of fabric base layers It characterized in that it comprises a.
The multifunctional fabric of the present invention can exhibit a complex function of electromagnetic wave shielding and heat dissipation, which are different functions on both sides of the fabric, and has a light, thin and compact structure by using fibers or resins and materials, so that it can be used for small electronic devices in large electronic control facilities. It can be applied to various fields.

Description

전자파 차폐 및 방열기능을 갖는 다기능 원단 {Multi-functional textile having function of electromagnetic wave shielding and thermal radiation}Multi-functional textile having function of electromagnetic wave shielding and thermal radiation}

본 발명은 전자파 차폐는 물론 방열기능 함께 구비한 다기능 원단에 관한 것으로, 보다 상세하게는 원단 기재의 양면에 서로 다른 기능인 전자파 차폐 및 방열기능이 발현되는 다기능 원단에 관한 것이다.The present invention relates to a multifunctional fabric provided with electromagnetic wave shielding as well as a heat dissipation function, and more particularly, to a multifunctional fabric having different functions of electromagnetic wave shielding and heat dissipation functions on both sides of a fabric substrate.

최근에 자동차, 전기, 전자 분야의 전자기기는 경량화, 소형화, 다기능화가 추구되고 있어 단위 회로들을 좁은 공간에 밀집시키는 전자소자의 고집적화가 이루어지고 있으며, 이에 따라 전자파 발생과 발열 문제가 대두되고 있다. In recent years, electronic devices in automobiles, electrics, and electronic fields have been pursuing weight reduction, miniaturization, and multifunctionalization, and thus high integration of electronic devices that cluster unit circuits in a narrow space has been made, and accordingly, electromagnetic wave generation and heat generation problems have emerged.

전자파는 인체에 어떤 영향을 미치고 있는가에 대해 많은 연구가 이루어지고 있는데, 전자파의 고주파 에너지에 의해 일반적으로 사용자의 생체 조직 세포를 파괴하거나 변이를 일으켜 면역 기능을 약화시키는 등의 문제를 발생하는 것으로 알려져 있다. 전자파는 이와 같은 인체 유해성 문제와 함께 인접 회로에 전파방해를 일으켜 전자기기의 오동작을 유발하기도 하는데, 산업현장에서 전자제어에 의해 작동되는 자동화시스템에서 전자파로 인한 기기의 오동작은 산업재해로까지 작용하여 치명적인 영향을 주기도 함에 따라 전자파 적합성에 부합하는 제품에 대한 요구가 증가하고 있다.There are many studies on how electromagnetic waves affect the human body, and it is known that the high frequency energy of the electromagnetic waves generally destroys the tissue cells of the user or causes mutations, thereby weakening the immune function. have. In addition to such problems as harmful to the human body, electromagnetic waves also cause radio wave interference to adjacent circuits, causing malfunctions of electronic devices.In an automated system operated by electronic control in industrial sites, malfunctions of devices due to electromagnetic waves also act as industrial accidents. As it has a lethal effect, there is an increasing demand for products that meet electromagnetic compatibility.

이를 위해 대한민국 특허공개 제2009-0025845호, 실용신안 등록 제20-0190923호 등에는 전자파 차폐가 가능한 원단이 개시되어 있다. 전자소자가 집적된 전자기기의 경우 전자파 발생문제와 함께 많은 전자소자가 동시에 구동됨에 따라 좁은 공간에 많은 열이 발생하는데, 상기 개시된 전자파 차폐원단은 전자소자로부터 발생하는 고온의 열을 방열할 수 없는 문제가 있다. 따라서, 전자기기에서 발생한 고온의 열은 전자소자를 열화시켜 고장이나 수명을 단축함에 따라 발생한 열을 효과적으로 방열하는 것이 필요하다.For this purpose, Korean Patent Publication No. 2009-0025845 and Utility Model Registration No. 20-0190923 disclose fabrics capable of shielding electromagnetic waves. In the case of an electronic device in which electronic devices are integrated, a lot of heat is generated in a narrow space as many electronic devices are simultaneously driven along with the electromagnetic wave generation problem. The disclosed electromagnetic wave shielding fabric cannot dissipate high temperature heat generated from the electronic device. there is a problem. Accordingly, it is necessary to effectively dissipate the heat generated as high-temperature heat generated from the electronic device deteriorates the electronic device and shortens the life or failure.

대한민국 특허공개공보 제2009-0025845호(발명의 명칭: 전자파 차폐용 원단과 그 제조방법)Korean Patent Publication No. 2009-0025845 (Name of invention: electromagnetic wave shielding fabric and its manufacturing method) 대한민국 등록실용신안공보 제20-0190923호(고안의 명칭: 전자파 차단 원단)Republic of Korea Utility Model Publication No. 20-0190923 (name of design: electromagnetic wave blocking fabric)

본 발명은 이와 같은 종래기술의 문제점을 해결하기 위하여 창안된 것으로, 본 발명의 목적은 전자기기에서 발생하는 전자파를 차단하고 발생된 열을 효과적으로 방열시키도록 원단 기재의 양면에 전자파 차폐 및 방열기능을 구현한 다기능 원단과 이의 제조방법을 제공하는데 있다. The present invention was invented to solve the problems of the prior art, and an object of the present invention is to provide electromagnetic wave shielding and heat dissipation functions on both sides of a fabric substrate so as to block electromagnetic waves generated from electronic devices and effectively dissipate the generated heat. It is to provide the implemented multifunctional fabric and its manufacturing method.

이러한 목적을 달성하기 위하여, 본 발명은 전자파 차폐 및 방열이 가능한 원단으로, 한 쌍의 원단기재층, 상기 한 쌍의 원단기재층 중 어느 하나의 원단기재층 상에 적층되는 방열층, 상기 방열층 상에 적층되는 다공성 원단층, 및 상기 다공성 원단층과 상기 한 쌍의 원단기재층 중 다른 하나의 원단기재층 사이에 적층되는 전자파 차폐층을 구비하는 것을 특징으로 하는 전자파 차폐 및 방열기능을 갖는 다기능 원단을 제공한다.In order to achieve this object, the present invention is a fabric capable of shielding and dissipating electromagnetic waves, a pair of fabric base layers, a heat dissipation layer laminated on one of the pair of fabric base layers, and the heat dissipation layer Multifunctional with electromagnetic wave shielding and heat dissipation, characterized in that it comprises a porous fabric layer laminated on the top, and an electromagnetic wave shielding layer laminated between the porous fabric layer and the other fabric base layer of the pair of fabric base layers Provide fabric.

본 발명에 따르면, 상기 방열층은 나노세라믹 분말이 분산된 분산액이 코팅되어 형성되는 것이 바람직하다.According to the present invention, the heat dissipation layer is preferably formed by coating a dispersion in which nanoceramic powder is dispersed.

본 발명에 따르면, 상기 분산액은 수용성 열경화성 수지, 우레탄, 알루미늄 전구체, 및 실라놀 화합물이 혼합된 것이 바람직하다.According to the present invention, the dispersion is preferably a mixture of a water-soluble thermosetting resin, urethane, an aluminum precursor, and a silanol compound.

본 발명에 따르면, 상기 다공성 원단층은 내부에 다수의 통기공이 형성되는 3D 메쉬 원단인 것이 바람직하다.According to the present invention, the porous fabric layer is preferably a 3D mesh fabric in which a plurality of ventilation holes are formed.

본 발명에 따르면, 상기 3D 메쉬 원단은 망사형태로 편직되는 상부원단과 하부원단의 이격된 공간 사이를 모노필라멘트사를 세로로 편직하여 일체로 연결되게 결합시킨 것이 바람직하다.According to the present invention, it is preferable that the 3D mesh fabric is integrally connected by knitting a monofilament yarn vertically between the spaced spaces of the upper and lower fabrics knitted in a mesh form.

본 발명에 따르면, 상기 다공성 원단층은 제직밀도가 15(본/in²)이상 10(본/in²)이하인 것이 바람직하다.According to the present invention, the porous fabric layer preferably has a weaving density of 15 (bon/in²) or more and 10 (bon/in²) or less.

본 발명에 따르면, 상기 전자파 차폐층은 전도성 필러가 분산된 분산액이 코팅되어 형성되는 것이 바람직하다.According to the present invention, the electromagnetic wave shielding layer is preferably formed by coating a dispersion in which a conductive filler is dispersed.

본 발명에 따르면, 상기 전도성 필러는 산화알루미나 분말, 붕소질소화물 분말, 알루미늄 질소화물 분말, 탄화규소 분말, 수산화알루미늄 분말, 산화마그네슘 분말, 흑연 분말, 카본블랙 분말로 이루어진 군에서 선택되는 적어도 하나를 포함하는 것이 바람직하다.According to the present invention, the conductive filler is at least one selected from the group consisting of alumina oxide powder, boron nitride powder, aluminum nitride powder, silicon carbide powder, aluminum hydroxide powder, magnesium oxide powder, graphite powder, and carbon black powder. It is preferable to include.

본 발명에 따르면, 상기 전도성 필러는 알루미늄 니켈이 코팅된 분말인 것이 바람직하다.According to the present invention, the conductive filler is preferably a powder coated with aluminum nickel.

본 발명에 따르면 원단의 양면에 서로 다른 기능인 전자파 차폐와 방열의 복합 기능이 발현될 수 있으며, 섬유나 수지와 소재를 이용함에 따라 경박단소한 구조로 이루어져 대형 전자제어 설비에서 소형 전자기기에 이르기까지 다양한 분야에 적용이 가능하다.According to the present invention, a complex function of electromagnetic wave shielding and heat dissipation, which are different functions, can be expressed on both sides of a fabric, and it has a light, thin and compact structure by using fibers or resins and materials, from large electronic control facilities to small electronic devices. It can be applied to various fields.

도 1은 본 발명의 일 실시예에 따른 전자파 차폐 및 방열기능을 갖는 다기능 원단의 단면도이다.1 is a cross-sectional view of a multifunctional fabric having an electromagnetic wave shielding and heat dissipation function according to an embodiment of the present invention.

이하, 첨부 도면을 참조하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 실시예는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위해서 제공되어지는 것으로서, 도면에서의 요소의 형상, 요소의 크기, 요소간의 간격 등은 보다 명확한 설명을 강조하기 위해서 과장되거나 축소되어 표현될 수 있다.This embodiment is provided to more completely describe the present invention to those with average knowledge in the art, and the shape of the element, the size of the element, the spacing between the elements, etc. in the drawings emphasize a more clear description. For this reason, it can be exaggerated or reduced.

또한, 실시예를 설명하는데 있어서, 만일 어떤 구성요소가 다른 구성요소에 “형성되어”“구비되어”“결합되어”“고정되어”있다고 기재된 때에는, 그 다른 구성요소에 직접적으로 형성, 구비, 결합 또는 고정되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다.In addition, in describing the embodiment, if a component is described as being “formed,” “equipped,” “coupled” and “fixed” to another component, it is directly formed, provided, or coupled to the other component. Alternatively, it may be fixed, but it should be understood that other components may exist in the middle.

또한, 실시예를 설명하는데 있어서 원칙적으로 관련된 공지의 기능이나 공지의 구성과 같이 이미 당해 기술분야의 통상의 기술자에게 자명한 사항으로서 본 발명의 기술적 특징을 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략하기로 한다.In addition, when it is determined that the technical features of the present invention may be unnecessarily obscure as matters already obvious to those skilled in the art, such as known functions or known configurations related in principle in describing the embodiments, the detailed The explanation will be omitted.

도 1은 본 발명의 일 실시예에 따른 전자파 차폐 및 방열기능을 갖는 다기능 원단의 단면도로, 도 1을 참조하면 본 발명에 따른 다기능원단(100)은 원단 상면 및 하면에 소정 간격을 두고 배치되는 한 쌍의 원단기재층(110), 하면에 배치된 원단기재층(110)의 상에 적층되는 방열층(120), 방열층(120) 상에 적층되는 다공성 원단층(130), 다공성 원단층(130)과 상면에 배치된 원단기재층(110) 사이에 적층되는 전자파 차폐층(140)을 포함하여 이루어진다.1 is a cross-sectional view of a multifunctional fabric having an electromagnetic wave shielding and heat dissipation function according to an embodiment of the present invention. Referring to FIG. 1, the multifunctional fabric 100 according to the present invention is disposed at predetermined intervals on the upper and lower surfaces of the fabric. A pair of fabric base layers 110, a heat dissipation layer 120 stacked on the fabric base layer 110 disposed on the lower surface, a porous fabric layer 130 stacked on the heat dissipation layer 120, a porous fabric layer It comprises an electromagnetic wave shielding layer 140 laminated between the 130 and the fabric base layer 110 disposed on the upper surface.

상면 및 하면에 배치되는 한 쌍의 원단기재층(110)은 방열층(120) 및 전자파 차폐층(140)을 적층시킬 수 있는 것이라면 그 종류나 형태가 크게 제한되지 않으며, 구체적으로 직포, 부직포 또는 고분자 필름 중에서 어느 하나가 사용될 수 있다. 직포 또는 부직포는 폴리아마이드 섬유(나일론섬유), 폴리에스터섬유, 폴리우레탄 섬유, 폴리우레어 섬유, 폴리에틸렌 섬유, 폴리염화비닐 섬유, 폴리비닐리덴 섬유, 폴리테트라플루오로에틸렌 섬유, 폴리비닐알코올 섬유, 폴리아크릴로나이트릴 섬유, 또는 폴리프로필렌 섬유 등으로 형성된 것이 사용될 수 있다. 고분자 필름으로는 폴리에틸렌테레프탈레이트(PET) 필름, 폴리에틸렌(PE) 필름, 폴리이미드(PI) 필름, 폴리테트라플루오로에틸렌(PTFE) 필름, 폴리에틸렌이미드(PEI) 필름, 또는 폴리비닐리덴 플루오라이드(PVDF) 필름 등이 사용될 수 있다. 원단기재층(110)은 전도성이 있는 탄소섬유나 도전성 금속이 코팅된 도전성 원단을 사용하는 것이 보다 바람직하다.The type or shape of the pair of fabric substrate layers 110 disposed on the upper and lower surfaces is not greatly limited as long as the heat dissipation layer 120 and the electromagnetic wave shielding layer 140 can be stacked, and specifically, woven fabric, nonwoven fabric or Any one of the polymer films may be used. Woven or non-woven fabric is polyamide fiber (nylon fiber), polyester fiber, polyurethane fiber, polyurethane fiber, polyethylene fiber, polyvinyl chloride fiber, polyvinylidene fiber, polytetrafluoroethylene fiber, polyvinyl alcohol fiber, Those formed of polyacrylonitrile fibers, polypropylene fibers, or the like may be used. Polymer films include polyethylene terephthalate (PET) film, polyethylene (PE) film, polyimide (PI) film, polytetrafluoroethylene (PTFE) film, polyethyleneimide (PEI) film, or polyvinylidene fluoride ( PVDF) film or the like can be used. The fabric base layer 110 is more preferably a conductive fabric coated with a conductive carbon fiber or a conductive metal.

방열층(120)은 원단기재층(110) 상에 적층되어 전자기기에서 발생되는 열을 방열시키는 층으로, 나노세라믹 분말이 분산된 분산액이 코팅되어 형성된다. 분산액은 수용성 열경화성 수지, 우레탄, 알루미늄 전구체, 및 실라놀 화합물이 혼합되어 조성되는데, 이와 같이 조성된 분산액에 나노 세라믹 미립분말을 고분산시켜 방열층(120)을 형성시킨다. 분산액의 성분인 수용성 아크릴 및 우레탄은 후술하는 다공성 원단층(130)의 기공을 통해 외부로부터 이물질이 침투하지 않도록 방열층(120)의 표면을 보호하며, 알루미늄 전구체 및 실라놀 화합물은 방열층(120)의 표면적을 증가시킴에 따라 열전달 효과를 극대화시킬 수 있다.The heat dissipation layer 120 is a layer laminated on the fabric base layer 110 to radiate heat generated from electronic devices, and is formed by coating a dispersion in which nanoceramic powder is dispersed. The dispersion is composed of a mixture of a water-soluble thermosetting resin, urethane, an aluminum precursor, and a silanol compound, and the nano-ceramic fine powder is highly dispersed in the dispersion to form the heat dissipating layer 120. Water-soluble acrylic and urethane, which are components of the dispersion, protect the surface of the heat dissipation layer 120 so that foreign substances do not penetrate from the outside through the pores of the porous fabric layer 130 to be described later, and the aluminum precursor and the silanol compound are the heat dissipation layer 120 By increasing the surface area of ), the heat transfer effect can be maximized.

다공성 원단층(130)은 방열층(120) 상에 적층되어 발산되는 열을 효과적으로 배출하도록 다수의 기공이 형성되는 층으로, 내부에 다수의 통기공이 형성되는 원단이 사용된다. 원단으로는 3D 메쉬 원단이 사용될 수 있는데, 3D 메쉬 원단은 망사형태로 편직되는 상부원단과 하부원단의 이격된 공간 사이를 모노필라멘트사를 세로로 편직하여 일체로 연결되게 결합시켜, 상부원단과 하부원단 사이에 다수의 기공에 의해 연결되는 공기층을 형성시키는 것이 바람직하다. 일반 원단을 사용하는 경우, 다수의 기공을 형성하도록 제직밀도가 15(본/in²)이상 10(본/in²)이하인 것이 바람직한데, 제직밀도가 10(본/in²)미만이 되면 제직성이 나빠지고 원단의 구조적 안전성이 저하되며 15(본/in²)을 초과하면 통기성이 저하되는 단점이 있다.The porous fabric layer 130 is a layer in which a plurality of pores are formed so as to effectively discharge heat emitted by being stacked on the heat dissipation layer 120, and a fabric having a plurality of ventilation holes therein is used. A 3D mesh fabric can be used as the fabric, but the 3D mesh fabric is a monofilament yarn vertically knitted between the spaced spaces of the upper and lower fabrics knitted in a mesh form to be integrally connected. It is preferable to form an air layer connected by a plurality of pores between the fabrics. In the case of using a general fabric, it is desirable to have a weaving density of 15 (bon/in²) or more and 10 (bon/in²) or less to form a large number of pores. There is a drawback of falling out, lowering the structural safety of the fabric, and lowering breathability if it exceeds 15 (bon/in²).

전자파 차폐층(140)은 다공성 원단층(130)과 원단기재층(110) 사이에 적층되어 전자파 차폐와 방열층(120)에서 전달되는 열을 효과적으로 방열하도록 이중으로 마련된 층으로, 전도성 필러가 분산된 분산액이 코팅되어 형성된다. 전도성 필러는전자파를 차폐하도록 전기 전도성이 있는 입자로 이루어져 열경화성 수지와 같은 분산액에 균일하게 분산되는데, 전도성 필러로는 산화알루미나 분말, 붕소질소화물 분말, 알루미늄 질소화물 분말, 탄화규소 분말, 수산화알루미늄 분말, 산화마그네슘 분말, 흑연 분말, 카본블랙 분말로 이루어진 군에서 선택되는 적어도 하나가 사용될 수 있다. 전도성 필러로 또한 알루미늄 표면에 니켈이 코팅된 분말이 사용될 수 있는데, 알루미늄은 금이나 은에 비해 전도성은 다소 저하되나 가격경쟁력이 있고, 표면에 내식성이 우수한 니켈을 코팅함으로써 공기 중에서 산화되지 않고 전기전도성이 유지될 수 있다. The electromagnetic wave shielding layer 140 is a double layer formed between the porous fabric layer 130 and the fabric base layer 110 to effectively dissipate heat transferred from the electromagnetic wave shielding and heat dissipating layer 120, and a conductive filler is dispersed. The resulting dispersion is coated and formed. Conductive fillers are made of electrically conductive particles to shield electromagnetic waves and are uniformly dispersed in a dispersion such as a thermosetting resin. The conductive fillers include alumina oxide powder, boron nitride powder, aluminum nitride powder, silicon carbide powder, and aluminum hydroxide powder. , At least one selected from the group consisting of magnesium oxide powder, graphite powder, and carbon black powder may be used. As a conductive filler, a powder coated with nickel on the surface of aluminum can also be used.Although the conductivity of aluminum is somewhat lower than that of gold or silver, it is price-competitive, and it is not oxidized in air and has electrical conductivity by coating nickel with excellent corrosion resistance on the surface. Can be maintained.

이와 같이 이루어진 본 발명은 원단의 양면에 서로 다른 기능인 전자파 차폐와 방열의 복합 기능이 발현될 수 있으며, 섬유나 수지와 소재를 이용함에 따라 경박단소한 구조로 이루어져 대형 전자제어 설비에서 소형 전자기기에 이르기까지 다양한 분야에 적용이 가능하다.In the present invention made as described above, a complex function of electromagnetic wave shielding and heat dissipation, which are different functions, can be expressed on both sides of a fabric, and it is made of a light, thin and compact structure by using fibers or resins and materials. It can be applied to various fields.

이상과 같이 설명한 본 발명은 기재된 실시예에 한정되는 것은 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.The present invention described above is not limited to the described embodiments, and it is apparent to those of ordinary skill in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such variations or modifications will have to belong to the claims of the present invention.

100: 다기능 원단 110: 원단기재층
120: 방열층 130: 다공성 원단층
140: 전자파 차폐층 100: multifunctional fabric 110: fabric base layer
120: heat dissipation layer 130: porous fabric layer
140: electromagnetic wave shielding layer

Claims (9)

전자파 차폐 및 방열이 가능한 원단에 있어서,
한 쌍의 원단기재층;
상기 한 쌍의 원단기재층 중 어느 하나의 원단기재층 상에 적층되며, 수용성 열경화성 수지, 우레탄, 알루미늄 전구체, 및 실라놀 화합물이 혼합되어 나노세라믹 분말이 분산된 분산액이 코팅되어 형성되는 방열층;
제직밀도가 15(본/in²)이상 10(본/in²)이하로 제직되어 내부에 다수의 통기공이 형성되는 원단으로 형성되어 상기 방열층 상에 적층되는 다공성 원단층; 및
상기 다공성 원단층과 상기 한 쌍의 원단기재층 중 다른 하나의 원단기재층 사이에 적층되며, 표면에 니켈이 코팅된 알루미늄 분말이 분산된 분산액이 코팅되어 형성되는 전자파 차폐층;을 구비하는 것을 특징으로 하는 전자파 차폐 및 방열기능을 갖는 다기능 원단.
In the fabric that can shield electromagnetic waves and heat radiation,
A pair of fabric substrate layers;
A heat dissipation layer laminated on any one of the pair of fabric base layers and formed by coating a dispersion in which a water-soluble thermosetting resin, urethane, an aluminum precursor, and a silanol compound are mixed to form nanoceramic powder;
A porous fabric layer formed of a fabric having a weaving density of 15 (bon/in²) or more and 10 (bon/in²) or less to form a plurality of ventilation holes therein and laminated on the heat dissipation layer; And
And an electromagnetic wave shielding layer that is laminated between the porous fabric layer and the other fabric base layer of the pair of fabric base layers, and is formed by coating a dispersion in which nickel-coated aluminum powder is dispersed on a surface. Multifunctional fabric with electromagnetic wave shielding and heat dissipation.
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