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KR100692372B1 - The EMI sponge gasket using a metal thin film fabric became conductive polymer surface coating - Google Patents

The EMI sponge gasket using a metal thin film fabric became conductive polymer surface coating Download PDF

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KR100692372B1
KR100692372B1 KR1020050051874A KR20050051874A KR100692372B1 KR 100692372 B1 KR100692372 B1 KR 100692372B1 KR 1020050051874 A KR1020050051874 A KR 1020050051874A KR 20050051874 A KR20050051874 A KR 20050051874A KR 100692372 B1 KR100692372 B1 KR 100692372B1
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South Korea
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layer
thin film
fabric
conductive polymer
metal thin
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KR1020050051874A
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Korean (ko)
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KR20060131433A (en
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임구택
박종주
이재형
이환구
안정민
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(주)데카닉스
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/0015Gaskets or seals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073Shielding materials
    • H05K9/0081Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0084Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/20Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212Electromagnetic interference shielding

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

본 발명은 가스켓에 있어서, 금속 박막층과, 금속 박막층의 일측에 전기전도성 고분자 코팅제가 코팅된 전도성 고분자 코팅층과, 금속 박막층의 타측에 합지된 필름층과, 필름의 타측에 합지된 패브릭층과, 패브릭층의 타측에 형성된 핫 멜트층으로 구성되어, 핫 멜트층이 스펀지와 감싸지는 동시에 가스켓 제조장치에서 발생된 열에 의해 융착되면서 스펀지와 접착되어 가스켓을 형성함으로써, 전기전자 제품이나 기기의 각종 이음새나 접속부 등에 있어서 전자파가 밖으로 누설되거나 외부에서 내부로 침투하는 것을 차단하거나 또는 전자회로의 접지선 역할을 하여 정전기(ESD)로 인한 회로 손상 등을 효과적으로 차단, 방지할 수 있다.The present invention provides a gasket comprising: a metal thin film layer, a conductive polymer coating layer coated with an electrically conductive polymer coating on one side of the metal thin film layer, a film layer laminated on the other side of the metal thin film layer, a fabric layer laminated on the other side of the film, and a fabric Consists of a hot melt layer formed on the other side of the layer, the hot melt layer is wrapped with the sponge and bonded to the sponge while being fused by heat generated in the gasket manufacturing apparatus, thereby forming various gaskets and connections of electrical and electronic products or devices. For example, the electronic wave can be prevented from leaking outside or penetrating from the outside to the inside, or acting as a ground wire of the electronic circuit, effectively preventing and preventing circuit damage due to electrostatic discharge (ESD).

Description

전기전도성 고분자로 표면 코팅된 금속 박막 원단을 이용한 전자파차폐 스펀지 가스켓{The EMI sponge gasket using a metal thin film fabric became conductive polymer surface coating}The electromagnetic sponge gasket using a metal thin film fabric became conductive polymer surface coating

도 1은 본 발명에 따른 가스켓의 단면도이고,1 is a cross-sectional view of a gasket according to the present invention,

도 2는 본 발명에 따른 가스켓의 공정 순서도이다.2 is a process flow chart of a gasket according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10: 전기전도성 고분자 코팅층 20: 알루미늄 박막층10: electrically conductive polymer coating layer 20: aluminum thin film layer

30: 페트 필름층 40: 폴리에스터 패브릭층30: PET film layer 40: polyester fabric layer

50: 핫 멜트층 50: hot melt layer

본 발명은 고탄성 및 높은 전기전도도를 갖는 금속 박막 원단과 그를 이용한 전자파차폐(EMI: Electro Magnetic Interference) 가스켓에 관한 것으로, 보다 구체적으로는 전기전자 제품이나 기기의 각종 이음새나 접속부 등에 있어서 전자파가 밖으로 누설되거나 외부에서 내부로 침투하는 것을 차단하거나 또는 전자회로의 접지선 역할을 하여 정전기(ESD)로 인한 회로 손상 등을 효과적으로 차단 및 방지할 수 있는 가스켓에 관한 것이다.The present invention relates to a metal thin film fabric having a high elasticity and high electrical conductivity and an electromagnetic shield (EMI) gasket using the same. More specifically, electromagnetic waves leak out in various joints or connections of electrical and electronic products or devices. The present invention relates to a gasket that can effectively block and prevent circuit damage caused by electrostatic discharge (ESD) by preventing the external or internal penetration from the outside or acting as a ground wire of an electronic circuit.

전기전자 제품 및 기기의 발전, 무선 정보통신 산업의 눈부신 발전과 더불어 최근 가전제품 및 산업용 전자장치와 유/무선 정보통신기기는 더욱더 고주파화, 디지털화 되어 가고 있으며, 소형화, 경량화, 슬림화 및 회로의 고집적화가 이뤄지면서 전자파 노이즈로 인한 상호간섭 및 오작동 등의 문제점이 점차 증가하게 되어 이러한 문제들을 해결하기 위한 여러 대책들이 강구되어 왔다.With the development of electric and electronic products and devices, and the remarkable development of the wireless information and communication industry, in recent years, home appliances and industrial electronic devices and wired / wireless information and communication devices are becoming more and more high frequency and digitalized, and the size, weight, slim and high integration of circuits As a result, problems such as mutual interference and malfunction due to electromagnetic noise have gradually increased, and various countermeasures have been taken to solve these problems.

일반적으로 사용되고 있는 종래의 EMI 가스켓은 전기전도성 패브릭을 전기절연성 우레탄 폼에 감싼 형태의 전기전도성 패브릭 폼 가스켓인데 여기에 사용된 전기전도성 패브릭은 폴리에스터 패브릭나 나일론에 니켈, 구리, 은 또는 금으로 무전해 도금하여 전기전도성 패브릭을 제조하기 때문에 친환경적이지 못하고, 도금된 원단 도금표면의 내산화성 및 내약품성이 약하여 표면이 쉽게 산화되며, 원단 재단시 올 풀림 및 버(Burr)가 발생되고 도금된 금속입자가 이탈 즉, 섬유 및 금속 가루가 날리는 등의 단점들이 있다.Commonly used conventional EMI gaskets are electrically conductive fabric foam gaskets in which an electrically conductive fabric is wrapped in an electrically insulating urethane foam. It is not eco-friendly because it produces electroconductive fabric by plating it, and the surface is easily oxidized due to weak oxidation resistance and chemical resistance of plated fabric plating surface, and loosening and burr are generated during fabric cutting and plated metal particles There are disadvantages such as dislocation, ie, the blowing of fibers and metal powder.

이와 같은 단점들을 보완 및 개선하기 위해 금속 원단을 사용하여 전도성 폼 가스켓을 제조하고 있으나 이들 또한 인열 및 인장강도가 약하여 찢어지기 쉽고 전도성 폼 가스켓 제조 시 금속 원단과 우레탄 스펀지와의 접착력이 약하고, 기존 금속 원단은 절곡성이 불량하여 폼 가스켓의 완제품 형상이 정확하게 직사각형 혹은 정사각형으로 나오지 않아 폼 가스켓의 치수가 부정확 하다는 단점이 있다.In order to compensate and improve these shortcomings, conductive foam gaskets are manufactured using metal fabrics, but they are also easy to tear due to weak tear and tensile strength, and the adhesion between metal fabrics and urethane sponges is weak when manufacturing conductive foam gaskets. The fabric has a disadvantage of poor bendability, so the finished shape of the foam gasket does not come out exactly as a rectangle or a square, and thus the dimensions of the foam gasket are inaccurate.

또한, 금속 표면에 빛이 입사 되었을 때 반사로 인한 디스플레이 세트의 신뢰성 저하 및 고주파나 정전기에 의해 갈바닉 코로젼 현상이 발생될 수 있고 이로 인해 이탈된 이온이 민감한 전자기적 특성을 갖는 IC회로 및 부품 등에 치명적인 손상을 야기 할 수 있다.In addition, when light is incident on a metal surface, the reliability of the display set due to reflection may be reduced, and a galvanic coronal phenomenon may be generated by high frequency or static electricity, and thus, the separated ions may cause IC circuits and components having sensitive electromagnetic characteristics. May cause fatal damage.

본 발명은, 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 기존 전도성 패브릭 원단의 단점을 개선, 보안하고 친환경적이며 더욱더 전기전도도가 우수하고 인열 및 인장강도 등의 기계적 강도가 우수하며 가공성이 뛰어난 금속 박막 전도성 원단을 제조하고 그를 이용하여 고탄성, 고전기전도성, 고신뢰성의 전자파차폐 스펀지 가스켓을 제공한다.The present invention has been made in order to solve the problems of the prior art as described above, improve the disadvantages of the existing conductive fabric fabric, security and environmentally friendly, more excellent electrical conductivity, excellent mechanical strength, such as tear and tensile strength and workability This excellent metal thin film conductive fabric is fabricated and used to provide a high elastic, high electroconductive, high reliability electromagnetic shielding sponge gasket.

또한, 전기전자 제품이나 기기의 각종 이음새나 접속부 등에 있어서 전자파가 밖으로 누설되거나 외부에서 내부로 침투하는 것을 차단하거나 또는 전자회로의 접지선 역할을 하여 정전기(ESD)로 인한 회로 손상 등을 효과적으로 차단, 방지하는 전자파차폐 스펀지 가스켓을 제공한다.In addition, it prevents leakage of electromagnetic waves from outside or penetrates from inside to outside, or serves as a ground wire for electronic circuits in various joints and connections of electrical and electronic products or devices, effectively blocking and preventing circuit damage due to static electricity (ESD). It provides an electromagnetic shielding sponge gasket.

상기한 목적을 달성하기 위한, 본 발명에 따른 기술적인 수단은 가스켓에 있어서, 금속 박막층과, 금속 박막층의 일측에 전기전도성 고분자 코팅제가 코팅된 전도성 고분자 코팅층과, 금속 박막층의 타측에 합지된 필름층과, 필름의 타측에 합지된 패브릭층과, 패브릭층의 타측에 형성된 핫 멜트층으로 구성되어, 핫 멜트층이 스펀지와 감싸지는 동시에 가스켓 제조장치에서 발생된 열에 의해 융착되면서 우레탄 스펀지와 접착된다.Technical means according to the present invention for achieving the above object is a gasket, a metal thin film layer, a conductive polymer coating layer coated with an electrically conductive polymer coating on one side of the metal thin film layer, and a film layer laminated on the other side of the metal thin film layer And a fabric layer laminated on the other side of the film and a hot melt layer formed on the other side of the fabric layer, wherein the hot melt layer is wrapped with the sponge and bonded to the urethane sponge while being fused by heat generated in the gasket manufacturing apparatus.

상기한 목적을 달성하기 위한, 본 발명에 따른 기술적인 방법은 가스켓 공정에 있어서, 필름의 일 측면에 금속박을 합지시키는 단계; 합지된 필름의 타 측면에 패브릭를 합지시키는 단계; 합지된패브릭의 타 측면에 핫멜트 층을 형성시킴으로써 시트가 제조되는 단계; 제조된 시트의 금속 표면에 전도성고분자를 코팅하는 단계; 및 코팅된 시트의 핫멜트가 열에 의해 융착되는 동시에 스펀지에 접착되는 단계로 구성된다.In order to achieve the above object, the technical method according to the present invention comprises the steps of: laminating a metal foil on one side of the film in the gasket process; Laminating the fabric to the other side of the laminated film; Forming a sheet by forming a hot melt layer on the other side of the laminated fabric; Coating a conductive polymer on a metal surface of the manufactured sheet; And bonding the hot melt of the coated sheet to the sponge while being fused by heat.

본 발명에 의하면, 전기전자 제품이나 기기의 각종 이음새나 접속부 등에 있어서 전자파가 밖으로 누설되거나 외부에서 내부로 침투하는 것을 차단하거나 또는 전자회로의 접지선 역할을 하여 정전기(ESD)로 인한 회로 손상 등을 효과적으로 차단 및 방지할 수 있다.According to the present invention, it is possible to effectively prevent circuit damage due to electrostatic discharge (ESD) by preventing electromagnetic waves from leaking out or penetrating from inside to outside into various joints or connection parts of electrical and electronic products or devices, or acting as a ground wire of an electronic circuit. Can be blocked and prevented.

이하, 첨부한 도면에 의거하여 본 발명의 바람직한 실시예를 자세히 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

아울러 본 실시예에서 전기전도성 고분자로 표면 코팅된 금속은 알루미늄을 예를 들어 설명하지만 동, 주석, 니켈, 은, 금, 아연, 서스 중 어느 하나를 선택하여 사용하여도 된다.In addition, in the present embodiment, the metal surface-coated with the electrically conductive polymer will be described using, for example, aluminum, but any one of copper, tin, nickel, silver, gold, zinc, and sus may be used.

도 1은 본 발명에 따른 가스켓의 단면도로, 전도성고분자 코팅층(10), 알루미늄 박막층(20), 페트 필름층(30), 폴리에스터 패브릭층(40) 및 핫 멜트층(50)으로 구성되어 있다.1 is a cross-sectional view of a gasket according to the present invention, which is composed of a conductive polymer coating layer 10, an aluminum thin film layer 20, a pet film layer 30, a polyester fabric layer 40, and a hot melt layer 50. .

전기전도성 고분자 코팅층(10)은 알루미늄 박막의 전자기적/물리화학적 안정 성을 위해 알루미늄 박막층의 일측에 전기전도성 고분자 갈바닉 코로젼이 코팅된 코팅층이다.The electroconductive polymer coating layer 10 is a coating layer coated with an electrically conductive polymer galvanic coronation on one side of the aluminum thin film layer for the electromagnetic / physicochemical stability of the aluminum thin film.

알루미늄 박막층(20)은 기존의 제품이 갖고 있는 접착력 및 절곡성 불량, 인열 및 인장강도가 약하고, 빛의 반사 문제 및 전자기적/물리화학적 반응에 의한 알루미늄의 단점을 개선하기 위하여 일측에 페트 필름(PET Film)이 합지되어 있고, 전자기적/물리화학적 안정성을 위해 타측에 전도성 고분자를 박막으로 코팅 처리 시킨다. The aluminum thin film layer 20 has a weak adhesive force and bendability, tear and tensile strength of the existing product, and the PET film (to reduce the disadvantages of aluminum due to the reflection problem of light and electromagnetic / physical chemical reaction) PET Film) is laminated, and the conductive polymer is coated with a thin film on the other side for electromagnetic / physical chemical stability.

페트 필름층(30)은 일측에 접착제를 도포하여 알루미늄 박막층을 합지시키고 타측에는 우레탄 스펀지와의 접착력 및 절곡성을 우수하게 하기 위해 접착제를 도포한 후 폴리에스터(즉, 폴리에스테르) 패브릭을 합지시킨다.The PET film layer 30 coats an aluminum thin film layer by applying an adhesive on one side, and laminates a polyester (that is, polyester) fabric on the other side after applying the adhesive to improve adhesion and bendability with the urethane sponge. .

폴리에스터 패브릭층(40)은 일측에 페트 필름이 합지되어 있고, 타측에 핫 멜트(50)층이 형성되어 핫 멜트층(50)의 타측은 스펀지(도시되지 않음)에 접착된다.The polyester fabric layer 40 has a PET film laminated on one side, and a hot melt 50 layer is formed on the other side, the other side of the hot melt layer 50 is bonded to a sponge (not shown).

따라서, 시트는 폴리에스터 패브릭 위에 핫멜트 유기바인더가 코팅된 원단으로 우레탄 스펀지를 감싸면서 열을 가함으로써 시트의 핫멜트가 융착되면서 우레탄 스펀지에 접착되도록 하여 인열, 인장강도가 우수하고 절곡성 및 치수안전성이 뛰어나며 빛의 반사 및 전자기적/물리화학적 안정성이 우수하여 높은 신뢰성을 갖게 된다.Therefore, the sheet is covered with a hot melt organic binder coated fabric on a polyester fabric and is heated while wrapping the urethane sponge so that the hot melt of the sheet is fused and bonded to the urethane sponge, thereby providing excellent tearing, tensile strength, bending property, and dimensional safety. It is excellent and has high reliability by reflecting light and excellent electromagnetic / physical chemical stability.

아울러, 페트 필름 층은 폴리에틸렌(PE: Polyethylene), 폴리프로필렌(PP: Polypropylene), 폴리 바이닐 클로라이드 (PVC: Poly Vinyl Chloride), 폴리이미드 필름과 폴리우레탄 러버 시트와 대체 가능하고, 폴리에스터 패브릭은 나일론 섬유 및 메쉬, 폴리에스터 부직포, 폴리우레탄 부직포 혹은 한지 및 종이와 대체 가능하며, 전기절연성 탄성체(즉, 스펀지)로는 EVA(Ethylene-Vinyl Acetate copolymer)나 에틸렌프로필렌 고무(EPDM: ethylene propylene rubber), 실리콘, 테프론, 실리콘-테프론 공중합체, 천연고무 스펀지와 대체 사용이 가능하다.In addition, the PET film layer can be replaced with polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyimide film and polyurethane rubber sheets, and the polyester fabric is nylon It can be replaced with fiber and mesh, polyester nonwoven fabric, polyurethane nonwoven fabric or Korean paper and paper.The electrically insulating elastomer (ie sponge) can be EVA (Ethylene-Vinyl Acetate copolymer), ethylene propylene rubber (EPDM) or silicone. It can be used with, teflon, silicone-teflon copolymer and natural rubber sponge.

또한, 알루미늄 표면위에 코팅되는 전기전도성 고분자는 PEDOT(Poly Ethylene Dioxy Thiophene), 폴리피롤(Poly Pyrrole), 폴리아닐린 코팅제와 대체 가능하고, 알루미늄 표면위에 코팅되는 박막 코팅제로는 전도성 카본블랙 페이스트 또는 블랙 및 브라운계 색상의 착색 코팅제와 대체 사용이 가능하다.In addition, the electrically conductive polymer coated on the aluminum surface may be replaced with PEDOT (Poly Ethylene Dioxy Thiophene), polypyrrole (polypyrrole), polyaniline coating agent, and the thin film coating agent coated on the aluminum surface is conductive carbon black paste or black and brown Alternative use is possible with colored coloring coatings.

도 2는 본 발명에 따른 가스켓의 공정 순서도이다.2 is a process flow chart of a gasket according to the present invention.

페트 필름의 일측면에 접착제를 도포하여 알루미늄박을 합지(S1)시키고, 합지된 페트 필름의 타측면에 접착제를 도포한 후 폴리에스터 패브릭을 합지(S2)시키며, 폴리에스터 패브릭의 타 측면에 핫멜트 층을 형성(S3)한 후 알루미늄 표면위에 전기전도성 고분자로 박막 코팅(S4)함으로써 시트가 제조된다.The adhesive is applied to one side of the PET film to laminate the aluminum foil (S1), the adhesive is applied to the other side of the laminated PET film, and then the polyester fabric is laminated (S2), and the hot melt on the other side of the polyester fabric After forming the layer (S3), a sheet is manufactured by coating a thin film (S4) with an electrically conductive polymer on the aluminum surface.

아울러, 알루미늄박의 전기전도성 코팅제의 코팅방식은 롤 코팅, 그라비아 코팅, 옵셋(Off-set), 나이프, 캐스팅(Casting), 스프레이(Spray), 실크스크린 인쇄, 함침(Dipping) 중 하나의 방식을 선택하여 시트를 코팅하는 것이 가능하다.In addition, the coating method of the electrically conductive coating agent of aluminum foil may be one of roll coating, gravure coating, offset (off-set), knife, casting, spray, silkscreen printing, and dipping. It is possible to select and coat the sheet.

그 후, 코팅된 전기전도성 시트가 우레탄 스펀지에 연속적으로 감싸지는 동시에 폴리에스터의 일측에 형성된 핫멜트가 EMI 폼 가스켓 제조장치(도시하지 않음)에서 발생된 열에 의해 융착되면서 우레탄 스펀지에 접착(S5)된다.Thereafter, the coated electroconductive sheet is continuously wrapped in the urethane sponge and at the same time the hot melt formed on one side of the polyester is bonded to the urethane sponge while being fused by heat generated in the EMI foam gasket manufacturing apparatus (not shown). .

본 발명은 상기한 실시예에 한정되지 않고, 이하 청구 범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.The present invention is not limited to the above-described embodiments, and various changes can be made by those skilled in the art without departing from the gist of the present invention as claimed in the following claims.

이상에서 자세히 설명된 바와 같이, 본 발명에 의해 제조된 전도성 스펀지 가스켓은 우수한 탄성과 기존의 유사한 제품 보다 인열 및 인장 강도 등의 기계적 강도가 훨씬 우수한 특성을 가지며, 기존에 사용되고 있는 무전해 도금에 의한 전도성 패브릭 또는 부직포, 메쉬 원단의 올풀림 및 버(Burr) 발생 등의 단점들을 해결할 수 있으며, 특성과 유연성을 갖는 동시에 도전율을 높이면서 내산화성을 높일 수 있고, 제조 방법이 단순조합으로 간편하여 작업성을 향상시킬 수 있을 뿐만 아니라 품질 향상 및 원가를 절감할 수 있다.As described in detail above, the conductive sponge gasket manufactured by the present invention has excellent elasticity and mechanical strength such as tearing and tensile strength much better than existing similar products, and is due to electroless plating. It can solve the shortcomings of conductive fabric or non-woven fabric and mesh fabric, such as loosening and burr generation, and can improve oxidation resistance while increasing conductivity while maintaining characteristics and flexibility, and workability is simple by simple combination. In addition to improving the quality, the quality and cost can be reduced.

또한, 전기전자 제품이나 기기의 각종 이음새나 접속부 등에 있어서 전자파가 밖으로 누설되거나 외부에서 내부로 침투하는 것을 차단하거나 또는 전자회로의 접지선 역할을 하여 정전기(ESD)로 인한 회로 손상 등을 효과적으로 차단, 방지할 수 있다.In addition, it prevents leakage of electromagnetic waves from outside or penetrates from inside to outside, or serves as a ground wire for electronic circuits in various joints and connections of electrical and electronic products or devices, effectively blocking and preventing circuit damage due to static electricity (ESD). can do.

Claims (8)

지지체의 일측에 전도성 고분자층이 형성되고, 상기 지지체의 타측에 핫 멜트층이 형성되며, 상기 핫 멜트층이 우레탄 스펀지와 감싸지는 동시에 가스켓 제조장치에서 발생된 열에 의해 융착되면서 우레탄 스펀지와 접착되는 금속 박막 원단을 이용한 전자파차폐 스펀지 가스켓에 있어서,A conductive polymer layer is formed on one side of the support, and a hot melt layer is formed on the other side of the support, and the hot melt layer is wrapped with the urethane sponge and bonded to the urethane sponge while being fused by heat generated in the gasket manufacturing apparatus. In the electromagnetic shielding sponge gasket using a thin film fabric, 상기 전도성 고분자 층은 전기전도성 고분자인 PEDOT, 폴리피롤 또는 폴리아닐린 코팅제 중 어느 하나에 전도성 카본블랙 페이스트 또는 블랙 및 브라운계 색상의 착색 코팅제를 추가로 포함시켜 상기 지지체의 일측에 코팅시킨 것이고;The conductive polymer layer is coated on one side of the support by additionally including a conductive carbon black paste or a coloring coating of black and brown colors in any one of the electrically conductive polymer PEDOT, polypyrrole or polyaniline coating agent; 상기 지지체는 상기 전도성 고분자층이 일측에 코팅된 금속 박막층과, 상기 금속 박막층의 타측에 합지된 필름층과, 상기 필름층의 타측에 합지된 패브릭층으로 구성되며;The support is composed of a metal thin film layer coated on one side of the conductive polymer layer, a film layer laminated on the other side of the metal thin film layer, and a fabric layer laminated on the other side of the film layer; 상기 필름층은 페트(PET), 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리바이닐 클로라이드(PVC), 폴리이미드 필름, PS 필름 또는 폴리우레탄 러버 시트 중 어느 하나로 구성되고;The film layer is comprised of any one of PET (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyimide film, PS film or polyurethane rubber sheet; 상기 패브릭층은 폴리에스터 섬유, 나일론 섬유 및 메쉬, 폴리에스터 부직포 및 메쉬, 폴리우레탄 부직포, 한지 또는 종이 중 어느 하나로 구성되는 것;The fabric layer is comprised of any one of polyester fiber, nylon fiber and mesh, polyester nonwoven fabric and mesh, polyurethane nonwoven fabric, Hanji or paper; 을 특징으로 하는 금속 박막 원단을 이용한 전자파차폐 스펀지 가스켓.Electromagnetic shielding sponge gasket using a metal thin film fabric, characterized in that. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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KR101411978B1 (en) * 2013-09-27 2014-06-26 신창핫멜트 주식회사 The fabrication method of adhesive tape for thin electromagnetic shield with color layer in polymer film and adhesive tape thereby
KR101999516B1 (en) 2017-11-24 2019-07-12 주식회사 빅스 Conductive water-dispersible polyurethane resin composition for surface coating of emi gasket material and its manufacturing process

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