WO2020111298A1 - Hybrid composite made of metal wire mesh and carbon fiber reinforced plastic and having improved electromagnetic shielding properties - Google Patents
Hybrid composite made of metal wire mesh and carbon fiber reinforced plastic and having improved electromagnetic shielding properties Download PDFInfo
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- WO2020111298A1 WO2020111298A1 PCT/KR2018/014753 KR2018014753W WO2020111298A1 WO 2020111298 A1 WO2020111298 A1 WO 2020111298A1 KR 2018014753 W KR2018014753 W KR 2018014753W WO 2020111298 A1 WO2020111298 A1 WO 2020111298A1
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/60—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the warp or weft elements other than yarns or threads
- D03D15/67—Metal wires
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/275—Carbon fibres
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- 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
Definitions
- the present invention relates to a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material with improved electromagnetic wave shielding properties, and a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material having excellent physical properties, lightness, and improved electromagnetic wave shielding properties and absorption.
- the electromagnetic wave use band is gradually shifting to the high frequency band due to the development of communication technology, propagation induction technology of moving objects, the development of electronic components technology in the automotive industry, and the expansion of functions of electronic devices. .
- Conventional electromagnetic wave shielding technology is mainly used in the form of directly using a metal base or painting or plating with a conductive film, and the metal base is inferior in processability and weight, and also requires a complicated process to reduce productivity and economy. .
- Such composite materials can be made lighter than existing metal base materials, and can be produced through extrusion and injection-based processes, so they are superior to metal base materials in terms of productivity and economics. Do.
- Patent document 0001 (KR10-2017-0116062A (2017.10.18)) has been proposed in relation to the electromagnetic shield sheet.
- Patent document 0001 is a step of making a non-woven fabric or fabric using at least one conductive fiber selected from glass fiber coated with metal and carbon fiber plated with metal; And impregnating the nonwoven fabric or fabric with a resin or a thermosetting resin to form a sheet or tape, impregnating one or more resins.
- it is inexpensive and can be mass-produced.
- As a reinforcing material it is possible to improve physical properties and to manufacture a lightweight electromagnetic shielding sheet.
- the process of plating the metal on the glass fiber and carbon fiber is complicated, and there is a fear that the plated metal may be peeled, so that the electromagnetic wave shielding performance is deteriorated.
- the present invention for solving such a conventional problem is to provide a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material having excellent physical properties, light weight, and improved electromagnetic shielding and absorption.
- a metal wire mesh having improved electromagnetic shielding properties comprising a metal wire mesh tape yarn formed by cutting a metal wire mesh to a constant width and a first hybrid fabric formed by weaving CFRP tape yarn formed by cutting a CFRP sheet to a constant width. And carbon fiber reinforced plastic hybrid composites.
- a metal wire mesh tape yarn formed by cutting a metal wire mesh to a certain width, and a second hybrid fabric formed by weaving a CFRP tape yarn formed by cutting a CFRP sheet to a constant width are bonded on the first hybrid fabric,
- the metal wire mesh of the first hybrid fabric and the metal wire mesh of the second hybrid fabric are preferably made of different metals.
- the metal wire mesh of the first hybrid fabric and the second hybrid fabric is preferably made of one selected from nickel (Ni), stainless steel (SUS), and copper (Cu).
- the CFRP sheet of the first hybrid fabric and the second hybrid fabric is preferably made of a CFRP prepreg sheet.
- a lower CFRP sheet bonded to the lower surface of the first hybrid fabric and an upper CFRP sheet bonded to the upper surface of the second hybrid fabric are included.
- the lower CFRP sheet and the upper CFRP sheet are CFRP prepps. It is better to consist of leg sheets.
- Metal wire mesh and carbon fiber-reinforced plastic hybrid composites having improved electromagnetic wave shielding properties and absorption rates of the present invention are metal-free as carbon fibers are not plated, and metal wire mesh tapes and CFRP tapes are composed of woven hybrid fabrics. There is no fear of being able to continuously maintain excellent electromagnetic shielding and absorption, and it has excellent physical properties, light weight, and excellent productivity.
- the metal wire mesh and the carbon fiber reinforced plastic hybrid composite having improved electromagnetic wave shielding properties of the present invention are formed by weaving a metal wire mesh tape formed by cutting a metal wire mesh with a certain width, and a CFRP tape yarn formed by cutting a CFRP sheet with a constant width. It comprises a hybrid fabric.
- the metal wire mesh tape yarn preferably has a width of 5 to 20 mm.
- the width of the metal wire mesh tape yarn is less than 5 mm, there is a problem in that the cutting property is not good and the raw material loss is high.
- metal wire mesh tape is made of one of nickel (Ni), stainless steel (SUS), and copper (Cu).
- the CFRP tape yarn has a width of 5 to 20 mm.
- the width of the CFRP tape yarn is less than 5 mm, there is a problem in that the cutting property is not good, resulting in a large loss of raw materials, and when the width of the CFRP tape is less than 20 mm, the electromagnetic wave shielding properties and absorbency are not uniform.
- the CFRP tape yarn is preferably made of a CFRP prepreg sheet.
- the CFRP tape yarn is made of a CFRP prepreg sheet, when a hybrid fabric is manufactured by weaving with the metal wire mesh tape yarn, there is no fear that the hybrid fabric is separated by being bonded to the metal wire mesh tape yarn.
- the metal wire mesh tape yarn and the CFRP tape yarn constituting the hybrid fabric are mutually bonded, there is an advantage of excellent physical properties such as tensile strength and tensile strength.
- the metal wire mesh and the carbon fiber reinforced plastic hybrid composite having improved electromagnetic wave shielding properties of the present invention include a metal wire mesh tape yarn and a first hybrid fabric in which CFRP tape yarns are woven, and a metal wire mesh tape yarn and other metal wires of the first hybrid fabric.
- the mesh tape yarn and the CFRP tape yarn may be made by joining a woven second hybrid fabric.
- the material of the metal wire mesh tape of the first hybrid fabric is made of nickel (Ni)
- the material of the metal wire mesh tape of the second hybrid fabric is made of copper (Cu) or stainless steel (SUS).
- the material of the metal wire mesh tape of the first hybrid fabric is made of copper (Cu)
- the material of the metal wire mesh tape of the second hybrid fabric is made of stainless steel (SUS).
- the electromagnetic wave shielding performance and the electromagnetic wave absorption performance are greatly improved.
- CFRP sheet it is preferable to bond the CFRP sheet to the lower surface of the first hybrid fabric and the upper surface of the second hybrid fabric, respectively, in order to improve the reflection performance and absorption performance of electromagnetic waves.
- the CFRP sheet is preferably made of CFRP prepreg to improve the bonding properties.
- a metal wire mesh made of a 0.03 mm Ni filament, a metal wire mesh made of a 0.03 mm Cu filament, a metal wire mesh made of a 0.03 mm SUS filament, and a CFRP prepreg sheet were purchased and prepared.
- Ni/CFRP hybrid fabric Three types of metal wire mesh tape yarn and CFRP tape yarn were woven using a plain weaving machine to prepare Ni/CFRP hybrid fabric, Cu/CFRP hybrid fabric, and SUS/CFRP hybrid fabric, respectively. Is as shown in FIG. 1.
- Cu/CFRP hybrid fabric, Ni/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclave molding at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm.
- Hybrid composites were prepared.
- Cu/CFRP hybrid fabric, SUS/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclave molding at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm.
- Hybrid composites were prepared.
- Ni/CFRP hybrid fabric, SUS/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclaving at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm.
- Hybrid composites were prepared.
- the hybrid composites of Examples 1 to 3 have an average shielding rate of 93 dB or higher, which can be widely used in various fields such as automotive electronics.
- Metal wire mesh and carbon fiber-reinforced plastic hybrid composites having improved electromagnetic wave shielding properties and absorption rates of the present invention are metal-free as carbon fibers are not plated, and metal wire mesh tapes and CFRP tapes are composed of woven hybrid fabrics. There is no fear of being able to continuously maintain excellent electromagnetic shielding and absorption, and it has excellent physical properties, light weight, and excellent productivity.
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- Textile Engineering (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
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Abstract
Description
본 발명은 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재에 관한 것으로서, 물성이 우수하고 가벼우며 전자파 차폐성 및 흡수율이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재에 관한 것이다.The present invention relates to a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material with improved electromagnetic wave shielding properties, and a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material having excellent physical properties, lightness, and improved electromagnetic wave shielding properties and absorption.
최근 통신 기술, 이동 물체의 전파 유도 기술, 자동차 산업에서 전장 부품 기술의 발전과 전자 기기의 기능 확대 등에 의해 전자파 사용 대역이 점차 고주파 대역으로 이동하고 있어, 일상 생활에서의 전자파 공해가 꾸준히 증가하고 있다.Recently, the electromagnetic wave use band is gradually shifting to the high frequency band due to the development of communication technology, propagation induction technology of moving objects, the development of electronic components technology in the automotive industry, and the expansion of functions of electronic devices. .
또한, 전기적으로 제어하는 자동차 부품이 증가하면서 전장 부품의 중요성이 높아지고, 이에 따라 불필요한 전자파로 인한 차량의 오작동에 의한 안전 사고 문제도 꾸준히 증가하고 있어, 이러한 공해와 사고를 예방하기 위한 전자파 차폐 기술 개발의 중요성은 증가하고 있다.In addition, as the number of electronically controlled automobile parts increases, the importance of electronic components increases, and as a result, safety accident problems due to malfunction of vehicles due to unnecessary electromagnetic waves are steadily increasing, and electromagnetic wave shielding technology is developed to prevent such pollution and accidents. The importance of is increasing.
기존의 전자파 차폐 기술은 주로 금속 기제를 직접 사용하거나 전도성 막으로 도장 또는 도금하는 형태로 많이 사용되고 있는데, 금속 기제는 가공성이 떨어지고 무게가 많이 나갈 뿐만 아니라, 복잡한 공정을 거쳐야 되기 때문에 생산성, 경제성이 떨어진다.Conventional electromagnetic wave shielding technology is mainly used in the form of directly using a metal base or painting or plating with a conductive film, and the metal base is inferior in processability and weight, and also requires a complicated process to reduce productivity and economy. .
이러한 이유로 최근 탄소-고분자 복합재를 이용한 전자파 차폐 기술이 각광받고 있는데, 이러한 복합재는 기존 금속 기제 대비 경량화가 가능하고, 압출과 사출 기반의 공정을 통해 생산될 수 있어 생산성이나 경제성 면에서 금속 기제 대비 우수하다.For this reason, electromagnetic wave shielding technology using carbon-polymer composite materials has recently been spotlighted. Such composite materials can be made lighter than existing metal base materials, and can be produced through extrusion and injection-based processes, so they are superior to metal base materials in terms of productivity and economics. Do.
한편, 전자파 차폐제 쉬트와 관련하여 특허문헌 0001(KR10-2017-0116062A (2017.10.18))이 제안된 바 있다. 특허문헌 0001은 금속이 코팅된 유리섬유 및 금속이 도금된 카본섬유 중에서 선택되는 1종 이상의 전도성 섬유를 이용하여 부직포 또는 직물을 만드는 단계; 및 부직포 또는 직물을 열가소성 수지 및 열경화성 수지 중에서 선택되는 1종 이상의 수지로 함침하여 쉬트 또는 테이프 형태로 만드는 단계를 포함하는 전자파 차폐제 쉬트의 제조방법에 관한 것으로서, 전기전도가 우수하여 전자파 차폐성능이 우수하며, 가격이 저렴하고 대량 생산이 가능하며, 보강재 역할로서 물리적 물성을 향상시킬 수 있고, 경량인 전자파 차폐제 쉬트를 제조할 수 있는 이점이 있다. 그러나 유리섬유 및 탄소섬유에 금속을 도금하는 공정이 복잡하고 도금된 금속이 박리될 우려가 있어 전자파 차폐성능이 저하되는 문제가 있다.On the other hand, patent document 0001 (KR10-2017-0116062A (2017.10.18)) has been proposed in relation to the electromagnetic shield sheet. Patent document 0001 is a step of making a non-woven fabric or fabric using at least one conductive fiber selected from glass fiber coated with metal and carbon fiber plated with metal; And impregnating the nonwoven fabric or fabric with a resin or a thermosetting resin to form a sheet or tape, impregnating one or more resins. In addition, it is inexpensive and can be mass-produced. As a reinforcing material, it is possible to improve physical properties and to manufacture a lightweight electromagnetic shielding sheet. However, the process of plating the metal on the glass fiber and carbon fiber is complicated, and there is a fear that the plated metal may be peeled, so that the electromagnetic wave shielding performance is deteriorated.
이와 같은 종래의 문제점을 해결하기 위한 본 발명은 물성이 우수하고 가벼우며 전자파 차폐성 및 흡수율이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재를 제공하는 것을 목적으로 한다.The present invention for solving such a conventional problem is to provide a metal wire mesh and carbon fiber-reinforced plastic hybrid composite material having excellent physical properties, light weight, and improved electromagnetic shielding and absorption.
상기와 같은 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,
금속와이어메쉬를 일정한 폭으로 절단하여 형성된 금속와이어메쉬 테이프사와, CFRP 시트를 일정한 폭으로 절단하여 형성된 CFRP 테이프사를 직조하여 형성된 제1 하이브리드 직물을 포함하는 것을 특징으로 하는 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재를 제공한다.A metal wire mesh having improved electromagnetic shielding properties, comprising a metal wire mesh tape yarn formed by cutting a metal wire mesh to a constant width and a first hybrid fabric formed by weaving CFRP tape yarn formed by cutting a CFRP sheet to a constant width. And carbon fiber reinforced plastic hybrid composites.
그리고 금속와이어메쉬를 일정한 폭으로 절단하여 형성된 금속와이어메쉬 테이프사와, CFRP 시트를 일정한 폭으로 절단하여 형성된 CFRP 테이프사를 직조하여 형성된 제2 하이브리드 직물이 상기 제1 하이브리드 직물 상에 접합되고,And a metal wire mesh tape yarn formed by cutting a metal wire mesh to a certain width, and a second hybrid fabric formed by weaving a CFRP tape yarn formed by cutting a CFRP sheet to a constant width are bonded on the first hybrid fabric,
상기 제1 하이브리드 직물의 금속와이어메쉬와 상기 제2 하이브리드 직물의 금속와이어메쉬는 다른 금속으로 이루어지는 것이 바람직하다.The metal wire mesh of the first hybrid fabric and the metal wire mesh of the second hybrid fabric are preferably made of different metals.
상기 제1 하이브리드 직물 및 상기 제2 하이브리드 직물의 금속와이어메쉬는 니켈(Ni), 스테인리스강(SUS), 구리(Cu) 중 선택된 1종으로 이루어지는 것이 좋다.The metal wire mesh of the first hybrid fabric and the second hybrid fabric is preferably made of one selected from nickel (Ni), stainless steel (SUS), and copper (Cu).
그리고 상기 제1 하이브리드 직물 및 상기 제2 하이브리드 직물의 CFRP 시트는 CFRP 프리프레그 시트로 이루어지는 것이 바람직하다.In addition, the CFRP sheet of the first hybrid fabric and the second hybrid fabric is preferably made of a CFRP prepreg sheet.
또한, 상기 제1 하이브리드 직물의 하부면에 접합되는 하측 CFRP 시트와, 상기 제2 하이브리드 직물의 상부면에 접합되는 상측 CFRP 시트가 포함되고, 특히, 상기 하측 CFRP 시트 및 상기 상측 CFRP 시트는 CFRP 프리프레그 시트로 이루어지는 것이 좋다.In addition, a lower CFRP sheet bonded to the lower surface of the first hybrid fabric and an upper CFRP sheet bonded to the upper surface of the second hybrid fabric are included. In particular, the lower CFRP sheet and the upper CFRP sheet are CFRP prepps. It is better to consist of leg sheets.
본 발명의 전자파 차폐성 및 흡수율이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재는 종래와 같이 탄소섬유에 금속이 도금되지 않고 금속와이어메쉬 테이프사와 CFRP 테이프사가 직조된 하이브리드 직물로 구성됨에 따라 금속이 박리될 우려가 없어 우수한 전자파 차폐성 및 흡수율을 지속적으로 유지할 수 있으며, 물성이 우수하고 가벼우며 생산성이 우수한 효과가 있다.Metal wire mesh and carbon fiber-reinforced plastic hybrid composites having improved electromagnetic wave shielding properties and absorption rates of the present invention are metal-free as carbon fibers are not plated, and metal wire mesh tapes and CFRP tapes are composed of woven hybrid fabrics. There is no fear of being able to continuously maintain excellent electromagnetic shielding and absorption, and it has excellent physical properties, light weight, and excellent productivity.
도 1은 3종의 하이브리드 직물을 각각 촬영한 사진이다.1 is a photograph of each of three types of hybrid fabrics.
이하, 본 발명의 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재를 상세히 설명하면 다음과 같다.Hereinafter, the metal wire mesh and the carbon fiber-reinforced plastic hybrid composite having improved electromagnetic wave shielding properties of the present invention will be described in detail as follows.
본 발명의 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재는 금속와이어메쉬를 일정한 폭으로 절단하여 형성된 금속와이어메쉬 테이프사와, CFRP 시트를 일정한 폭으로 절단하여 형성된 CFRP 테이프사를 직조하여 형성된 하이브리드 직물을 포함하여 구성된다.The metal wire mesh and the carbon fiber reinforced plastic hybrid composite having improved electromagnetic wave shielding properties of the present invention are formed by weaving a metal wire mesh tape formed by cutting a metal wire mesh with a certain width, and a CFRP tape yarn formed by cutting a CFRP sheet with a constant width. It comprises a hybrid fabric.
상기 금속와이어메쉬 테이프사는 폭이 5 내지 20mm인 것이 좋다. 상기 금속와이어메쉬 테이프사의 폭이 5mm 미만인 경우 절단성이 좋지 못하여 원자재 로스가 많고, 20mm 초과인 경우 전자파 차폐성, 흡수성 등이 일정하지 못하는 문제가 있다.The metal wire mesh tape yarn preferably has a width of 5 to 20 mm. When the width of the metal wire mesh tape yarn is less than 5 mm, there is a problem in that the cutting property is not good and the raw material loss is high.
그리고 상기 금속와이어메쉬 테이프사의 금속은 니켈(Ni), 스테인리스강(SUS), 구리(Cu) 중 선택된 1종으로 이루어진다.And the metal wire mesh tape is made of one of nickel (Ni), stainless steel (SUS), and copper (Cu).
그리고 상기 CFRP 테이프사는 폭이 5 내지 20mm인 것이 좋다. 상기 CFRP 테이프사의 폭이 5mm 미만인 경우 절단성이 좋지 못하여 원자재 로스가 많고, 20mm 초과인 경우 전자파 차폐성, 흡수성 등이 일정하지 못하는 문제가 있다.And it is preferable that the CFRP tape yarn has a width of 5 to 20 mm. When the width of the CFRP tape yarn is less than 5 mm, there is a problem in that the cutting property is not good, resulting in a large loss of raw materials, and when the width of the CFRP tape is less than 20 mm, the electromagnetic wave shielding properties and absorbency are not uniform.
특히, 상기 CFRP 테이프사는 CFRP 프리프레그 시트로 이루어지는 것이 좋다. 상기 상기 CFRP 테이프사가 CFRP 프리프레그 시트로 이루어진 경우 상기 금속와이어메쉬 테이프사와 직조하여 하이브리드 직물을 제조할 경우 상기 금속와이어메쉬 테이프사와 접합되어 하이브리드 직물이 분리될 우려가 없다. 또한 하이브리드 직물을 구성하는 금속와이어메쉬 테이프사와 CFRP 테이프사가 상호 접합됨에 따라 휭강도, 인장강도 등의 물성이 우수한 이점이 있다.In particular, the CFRP tape yarn is preferably made of a CFRP prepreg sheet. When the CFRP tape yarn is made of a CFRP prepreg sheet, when a hybrid fabric is manufactured by weaving with the metal wire mesh tape yarn, there is no fear that the hybrid fabric is separated by being bonded to the metal wire mesh tape yarn. In addition, as the metal wire mesh tape yarn and the CFRP tape yarn constituting the hybrid fabric are mutually bonded, there is an advantage of excellent physical properties such as tensile strength and tensile strength.
그리고, 본 발명의 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재는 금속와이어메쉬 테이프사와 CFRP 테이프사가 직조된 제1 하이브리드 직물과, 상기 제1 하이브리드 직물의 금속와이어메쉬 테이프사와 다른 금속와이어메쉬 테이프사와 CFRP 테이프사가 직조된 제2 하이브리드 직물이 접합되어 이루어질 수 있다.In addition, the metal wire mesh and the carbon fiber reinforced plastic hybrid composite having improved electromagnetic wave shielding properties of the present invention include a metal wire mesh tape yarn and a first hybrid fabric in which CFRP tape yarns are woven, and a metal wire mesh tape yarn and other metal wires of the first hybrid fabric. The mesh tape yarn and the CFRP tape yarn may be made by joining a woven second hybrid fabric.
예를 들면 상기 제1 하이브리드 직물의 금속와이어메쉬 테이프사의 재질이 니켈(Ni)로 이루어진 경우, 상기 제2 하이브리드 직물의 금속와이어메쉬 테이프사의 재질은 구리(Cu) 또는 스테인리스강(SUS)로 이루어진다. 그리고 상기 제1 하이브리드 직물의 금속와이어메쉬 테이프사의 재질이 구리(Cu)로 이루어진 경우, 상기 제2 하이브리드 직물의 금속와이어메쉬 테이프사의 재질은 스테인리스강(SUS)으로 이루어진다.For example, when the material of the metal wire mesh tape of the first hybrid fabric is made of nickel (Ni), the material of the metal wire mesh tape of the second hybrid fabric is made of copper (Cu) or stainless steel (SUS). In addition, when the material of the metal wire mesh tape of the first hybrid fabric is made of copper (Cu), the material of the metal wire mesh tape of the second hybrid fabric is made of stainless steel (SUS).
이와 같이 상기 하이브리드 복합재가 다른 금속으로 이루어진 제1 하이브리드 직물과 제2 하이브리드 직물이 접합형성될 경우 전자파 차폐 성능 및 전자파 흡수 성능이 크게 향상되는 이점이 있다.As described above, when the first hybrid fabric and the second hybrid fabric of the hybrid composite material are formed of different metals, the electromagnetic wave shielding performance and the electromagnetic wave absorption performance are greatly improved.
그리고 전자파의 반사 성능 및 흡수 성능을 향상시키기 위해 상기 제1 하이브리드 직물의 하부면과 상기 제2 하이브리드 직물의 상부면에 각각 CFRP 시트를 접합하는 것이 바람직하다. 상기 CFRP 시트는 접합성을 향상시키기 위해 CFRP 프리프레그로 이루어지는 것이 좋다.In addition, it is preferable to bond the CFRP sheet to the lower surface of the first hybrid fabric and the upper surface of the second hybrid fabric, respectively, in order to improve the reflection performance and absorption performance of electromagnetic waves. The CFRP sheet is preferably made of CFRP prepreg to improve the bonding properties.
이하, 본 발명의 전자파 차폐성이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재를 실시예를 들어 더욱 상세히 설명하면 다음과 같고, 본 발명의 권리범위는 하기의 실시예에 한정되는 것은 아니다.Hereinafter, a metal wire mesh and a carbon fiber-reinforced plastic hybrid composite material having improved electromagnetic wave shielding properties of the present invention will be described in more detail with reference to examples, and the scope of the present invention is not limited to the following examples.
[하이브리드 직물 제조][Production of hybrid fabrics]
0.03mm의 Ni필라멘트로 이루어진 금속와이어메쉬, 0.03mm의 Cu필라멘트로 이루어진 금속와이어메쉬, 0.03mm의 SUS필라멘트로 이루어진 금속와이어메쉬 및 CFRP 프리프레그 시트를 구입하여 준비하였다.A metal wire mesh made of a 0.03 mm Ni filament, a metal wire mesh made of a 0.03 mm Cu filament, a metal wire mesh made of a 0.03 mm SUS filament, and a CFRP prepreg sheet were purchased and prepared.
그리고 3종의 금속와이어메쉬 및 CFRP 프리프레그 시트를 15mm의 폭으로 절단하여 3종의 금속와이이메쉬 테이프사 및 CFRP 테이프사를 제조하였다.Then, three types of metal wire mesh and CFRP prepreg sheets were cut to a width of 15 mm to prepare three types of metal wire mesh tape yarns and CFRP tape yarns.
평직기를 이용하여 3종의 금속와이어메쉬 테이프사와 CFRP 테이프사를 각각 직조하여, Ni/CFRP 하이브리드 직물, Cu/CFRP 하이브리드 직물 및 SUS/CFRP 하이브리드 직물을 제조하였고, 제조된 3종의 하이브리드 직물의 사진은 도 1과 같다.Three types of metal wire mesh tape yarn and CFRP tape yarn were woven using a plain weaving machine to prepare Ni/CFRP hybrid fabric, Cu/CFRP hybrid fabric, and SUS/CFRP hybrid fabric, respectively. Is as shown in FIG. 1.
[실시예 1][Example 1]
CFRP 프리프레그 시트 상에 Cu/CFRP 하이브리드 직물, Ni/CFRP 하이브리드 직물 및 CFRP 프리프레그 시트를 순서대로 적층한 후 70 MPa의 압력, 150℃의 온도로 오토클레이브 성형하여 두께가 1mm인 실시예 1의 하이브리드 복합재를 제조하였다.Cu/CFRP hybrid fabric, Ni/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclave molding at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm. Hybrid composites were prepared.
[실시예 2][Example 2]
CFRP 프리프레그 시트 상에 Cu/CFRP 하이브리드 직물, SUS/CFRP 하이브리드 직물 및 CFRP 프리프레그 시트를 순서대로 적층한 후 70 MPa의 압력, 150℃의 온도로 오토클레이브 성형하여 두께가 1mm인 실시예 2의 하이브리드 복합재를 제조하였다.Cu/CFRP hybrid fabric, SUS/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclave molding at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm. Hybrid composites were prepared.
[실시예 3][Example 3]
CFRP 프리프레그 시트 상에 Ni/CFRP 하이브리드 직물, SUS/CFRP 하이브리드 직물 및 CFRP 프리프레그 시트를 순서대로 적층한 후 70 MPa의 압력, 150℃의 온도로 오토클레이브 성형하여 두께가 1mm인 실시예 3의 하이브리드 복합재를 제조하였다.Ni/CFRP hybrid fabric, SUS/CFRP hybrid fabric, and CFRP prepreg sheet were sequentially stacked on a CFRP prepreg sheet, followed by autoclaving at a pressure of 70 MPa and a temperature of 150° C. to achieve a thickness of 1 mm. Hybrid composites were prepared.
[전자파 차폐 유효성 측정][Electromagnetic shielding effectiveness measurement]
실시예 1 내지 실시예 3의 하이브리드 복합재에 대해 전자파 차폐율, 흡수손실(Absorption loss, SEA), 반사손실(Reflection loss, SER)에 대해 ASTM D4935-99의 방법으로 실험하였고, 실험한 결과는 표 1과 같다.The hybrid composites of Examples 1 to 3 were tested by the method of ASTM D4935-99 for the electromagnetic wave shielding rate, Absorption loss (SE A ) and Reflection loss (SE R ), and the results of the experiment Is shown in Table 1.
표 1에서 확인되는 바와 같이, 실시예 1 내지 실시예 3의 하이브리드 복합재는 평균 차폐율이 93dB 이상으로 매우 높게 측정되어, 자동차 전장 분야 등의 다양한 분야에 널리 사용될 수 있다.As can be seen from Table 1, the hybrid composites of Examples 1 to 3 have an average shielding rate of 93 dB or higher, which can be widely used in various fields such as automotive electronics.
본 발명의 전자파 차폐성 및 흡수율이 향상된 금속와이어메쉬 및 탄소섬유강화플라스틱 하이브리드 복합재는 종래와 같이 탄소섬유에 금속이 도금되지 않고 금속와이어메쉬 테이프사와 CFRP 테이프사가 직조된 하이브리드 직물로 구성됨에 따라 금속이 박리될 우려가 없어 우수한 전자파 차폐성 및 흡수율을 지속적으로 유지할 수 있으며, 물성이 우수하고 가벼우며 생산성이 우수한 효과가 있다.Metal wire mesh and carbon fiber-reinforced plastic hybrid composites having improved electromagnetic wave shielding properties and absorption rates of the present invention are metal-free as carbon fibers are not plated, and metal wire mesh tapes and CFRP tapes are composed of woven hybrid fabrics. There is no fear of being able to continuously maintain excellent electromagnetic shielding and absorption, and it has excellent physical properties, light weight, and excellent productivity.
Claims (6)
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| KR10-2018-0147576 | 2018-11-26 | ||
| KR1020180147576A KR102110691B1 (en) | 2018-10-31 | 2018-11-26 | Method of manufacturing hybrid composites with metal wire mesh and carbon fiber reinforced plastic improved electromagnetic interference shielding property |
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|---|---|---|---|---|
| CN112420271A (en) * | 2020-10-28 | 2021-02-26 | 金泰电缆有限公司 | Low-smoke halogen-free cable for telecommunication cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100563130B1 (en) * | 1998-02-18 | 2006-03-22 | 도레이 가부시끼가이샤 | Reinforcing Carbon Fiber Substrates, Laminates and Detection Methods |
| KR20080050613A (en) * | 2005-10-15 | 2008-06-09 | 바이엘 머티리얼사이언스 아게 | Plastic-Metal Composites with Metal Wire Mesh |
| US20150038034A1 (en) * | 2012-01-24 | 2015-02-05 | Heraeus Materials Technology Gmbh & Co. Kg | Flat structure, particularly textile, containing precious metal wire |
| KR20170033497A (en) * | 2015-09-16 | 2017-03-27 | 전주대학교 산학협력단 | The electromagnetic wave shielding efficiency is excellent and the wire mesh is a carbon fiber prepreg and a method for producing the skin |
| KR20170112281A (en) * | 2016-03-31 | 2017-10-12 | 주식회사 유성텔레콤 | Phone case and heat-radiating sheet shielding an electromagnetic wave |
-
2018
- 2018-11-28 WO PCT/KR2018/014753 patent/WO2020111298A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100563130B1 (en) * | 1998-02-18 | 2006-03-22 | 도레이 가부시끼가이샤 | Reinforcing Carbon Fiber Substrates, Laminates and Detection Methods |
| KR20080050613A (en) * | 2005-10-15 | 2008-06-09 | 바이엘 머티리얼사이언스 아게 | Plastic-Metal Composites with Metal Wire Mesh |
| US20150038034A1 (en) * | 2012-01-24 | 2015-02-05 | Heraeus Materials Technology Gmbh & Co. Kg | Flat structure, particularly textile, containing precious metal wire |
| KR20170033497A (en) * | 2015-09-16 | 2017-03-27 | 전주대학교 산학협력단 | The electromagnetic wave shielding efficiency is excellent and the wire mesh is a carbon fiber prepreg and a method for producing the skin |
| KR20170112281A (en) * | 2016-03-31 | 2017-10-12 | 주식회사 유성텔레콤 | Phone case and heat-radiating sheet shielding an electromagnetic wave |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420271A (en) * | 2020-10-28 | 2021-02-26 | 金泰电缆有限公司 | Low-smoke halogen-free cable for telecommunication cable |
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