KR102632167B1 - Carbon fiber impregnation complex material and manufacturing method thereof - Google Patents
Carbon fiber impregnation complex material and manufacturing method thereof Download PDFInfo
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- KR102632167B1 KR102632167B1 KR1020230032749A KR20230032749A KR102632167B1 KR 102632167 B1 KR102632167 B1 KR 102632167B1 KR 1020230032749 A KR1020230032749 A KR 1020230032749A KR 20230032749 A KR20230032749 A KR 20230032749A KR 102632167 B1 KR102632167 B1 KR 102632167B1
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- Prior art keywords
- carbon fiber
- fabric layer
- composite material
- molding resin
- impregnated
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 76
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 76
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000005470 impregnation Methods 0.000 title description 5
- 239000011365 complex material Substances 0.000 title 1
- 239000004744 fabric Substances 0.000 claims abstract description 67
- 239000002131 composite material Substances 0.000 claims abstract description 58
- 238000000465 moulding Methods 0.000 claims abstract description 57
- 229920005989 resin Polymers 0.000 claims abstract description 56
- 239000011347 resin Substances 0.000 claims abstract description 56
- 238000001035 drying Methods 0.000 claims abstract description 30
- 239000010445 mica Substances 0.000 claims abstract description 21
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 21
- 239000011265 semifinished product Substances 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 37
- 229920001296 polysiloxane Polymers 0.000 claims description 19
- 239000003365 glass fiber Substances 0.000 claims description 13
- -1 polysiloxane Polymers 0.000 claims description 12
- 238000010000 carbonizing Methods 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 3
- 229920001709 polysilazane Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052799 carbon Inorganic materials 0.000 abstract description 32
- 238000000034 method Methods 0.000 description 12
- 239000011358 absorbing material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 238000009824 pressure lamination Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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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
- 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
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
-
- 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
- D03D15/247—Mineral
-
- 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
- D03D15/267—Glass
-
- 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D9/00—Open-work fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
- D06B23/021—Compressive rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
Abstract
개시되는 탄소섬유 함침 복합소재는, 성형수지가 함침된 탄소섬유로 형성되는 원단층; 및 성형수지를 매개로 원단층에 가압 합지되는, 운모시트로 형성되는 단열층;을 포함하며, 개시되는 탄소섬유 복합소재는 원단층을 형성하는 탄소섬유에 성형수지를 함침시켜 공급하는 원단층 공급단계; 원단층에 단열층을 형성하는 운모시트를 가압 합지시켜 탄소섬유 복합소재 반제품이 제조하는 단열층 가압 합지단계; 및 탄소섬유 복합소재 반제품을 건조로를 이용해 건조 및 경화시키는 건조/경화 단계;를 거쳐 제조된다.The disclosed carbon fiber-impregnated composite material includes a fabric layer formed of carbon fiber impregnated with a molding resin; and a heat insulating layer formed of a mica sheet, which is press-laminated to the fabric layer through a molding resin. The disclosed carbon fiber composite material includes a fabric layer supply step of supplying carbon fibers forming the fabric layer by impregnating the molding resin. ; An insulating layer pressure laminating step in which a carbon fiber composite material semi-finished product is manufactured by pressurizing and laminating mica sheets forming an insulating layer on the fabric layer; and a drying/curing step of drying and curing the carbon fiber composite material semi-finished product using a drying furnace.
Description
본 발명(Disclosure)은, 전기자동차의 플로어 카펫으로 사용할 수 있는 탄소섬유 함침 복합소재 및 이의 제조방법에 관한 것이다.The present invention (Disclosure) relates to a carbon fiber-impregnated composite material that can be used as a floor carpet for electric vehicles and a method of manufacturing the same.
여기서는, 본 발명에 관한 배경기술이 제공되며, 이들이 반드시 공지기술을 의미하는 것은 아니다(This section provides background information related to the present disclosure which is not necessarily prior art).Here, background information related to the present invention is provided, and this does not necessarily mean prior art (This section provides background information related to the present disclosure which is not necessarily prior art).
일반적으로, 자동차에는 엔진으로부터 발생하는 소음 및 배기계로부터 발생하는 소음이 자동차의 실내로 전달되지 않도록 다양한 흡차음재가 사용되고 있다.In general, various sound absorbing and insulating materials are used in automobiles to prevent noise generated from engines and exhaust systems from being transmitted to the interior of the automobile.
일례로, 자동차의 인슐레이션 대쉬(insulation dash), 대쉬 아이솔레이션 패드(dash isolation pad) 등은 엔진 방사 소음이 실내에 유입되는 것을 차단하기 위해 사용되며, 터널 패드(tunnel pad), 플로어 카펫(floor carpet) 등은 배기계 및 바닥에서 발생하는 소음이 실내에 유입되는 것을 차단하기 위해 사용하게 된다.For example, a car's insulation dash, dash isolation pad, etc. are used to block engine radiated noise from entering the interior, and tunnel pads and floor carpets are used to block engine radiation noise from entering the interior. Lights are used to block noise from the exhaust system and floor from entering the room.
한편, 최근 전기자동차의 보급이 늘어나면서 플로워 카펫의 경우 흡음성 및 차음성과 더불어 방열성 및 누전되는 전류를 차단할 수 있도록 요구되고 있으며, 또한 배터리에 의한 화재 발생 시 화재 피해를 최소화할 수 있도록 요구되고 있다. Meanwhile, with the recent increase in the spread of electric vehicles, floor carpets are required to have sound absorption and sound insulation properties as well as heat dissipation and block leakage current, and are also required to minimize fire damage in the event of a fire caused by a battery. .
이를 위해서, 최근에는 경량이면서 고내열성 등의 특성을 가지는 탄소섬유를 이용하여 플로워 카펫 등의 흡차음재를 개발하고자 하는 노력이 있었으나, 탄소섬유는 성형성이 현저히 떨어지는 문제점이 있었으며, 이러한 문제로 인해 자동차의 플로워 카펫으로 사용되지 못하고 있는 실정이다.To this end, recent efforts have been made to develop sound absorbing and insulating materials such as floor carpets using carbon fiber, which is lightweight and has characteristics such as high heat resistance. However, carbon fiber has the problem of significantly poor formability, which makes it difficult to use in automobiles. The situation is that it is not being used as a floor carpet.
본 발명(Disclosure)은, 탄소섬유로 형성된 원단층에 성형성을 부여할 수 있게 하는 탄소섬유 함침 복합소재 및 이의 제조방법의 제공을 일 목적으로 한다.The purpose of the present invention (Disclosure) is to provide a carbon fiber-impregnated composite material and a manufacturing method thereof that can provide moldability to a fabric layer formed of carbon fiber.
본 발명(Disclosure)은, 차음성은 물론 방열성, 누전 전류 차단성 및 난연성이 우수한 탄소섬유 함침 복합소재 및 이의 제조방법의 제공을 일 목적으로 한다. The purpose of the present invention is to provide a carbon fiber-impregnated composite material with excellent sound insulation, heat dissipation, leakage current blocking properties, and flame retardancy, and a method for manufacturing the same.
또한, 본 발명이 해결하고자 하는 과제는, 이상에서 언급한 기술적 과제로 제한되지 않으며, 언급되지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 명확하게 이해될 수 있을 것이다.In addition, the problem to be solved by the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. It could be.
여기서는, 본 발명의 전체적인 요약(Summary)이 제공되며, 이것이 본 발명의 외연을 제한하는 것으로 이해되어서는 아니 된다(This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).Here, a general summary of the present invention is provided, and this should not be construed as limiting the scope of the present invention (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).
상기한 과제의 해결을 위해, 본 발명을 기술하는 여러 관점들 중 어느 일 관점(aspect)에 따른 탄소섬유 함침 복합소재는, 성형수지가 함침된 탄소섬유로 형성되는 원단층; 및 성형수지를 매개로 원단층에 가압 합지되는, 운모시트로 형성되는 단열층;을 포함할 수 있다.In order to solve the above problems, a carbon fiber-impregnated composite material according to one aspect among several aspects describing the present invention includes a fabric layer formed of carbon fiber impregnated with a molding resin; and a heat insulation layer formed of a mica sheet, which is press-laminated to the fabric layer through a molding resin.
본 발명의 일 관점(aspect)에 따른 탄소섬유 함침 복합소재에서, 탄소섬유는, 20~500g/㎡의 중량을 가지도록 셀룰로오스계 또는 폴리아크릴로니트릴계 또는 피치(pitch)계 직물 또는 편물 또는 부직포 또는 펠트를 탄화시켜 형성될 수 있다.In the carbon fiber-impregnated composite material according to one aspect of the present invention, the carbon fiber is a cellulose-based, polyacrylonitrile-based, or pitch-based fabric, knitted fabric, or non-woven fabric to have a weight of 20 to 500 g/m2. Alternatively, it can be formed by carbonizing felt.
본 발명의 일 관점(aspect)에 따른 탄소섬유 함침 복합소재에서, 성형수지는, 폴리실록산, 폴리디메틸실록산, 실온 경화 실리콘, 폴리메틸페닐실록산, 폴리실라잔, 아미노 변성 실리콘, 에폭시 변성 실리콘 중 어느 하나 또는 선택된 2종이 이상이 혼합되며, 성형수지는 탄소섬유에 10~200g/㎡의 중량으로 함침될 수 있다.In the carbon fiber-impregnated composite material according to one aspect of the present invention, the molding resin is any one of polysiloxane, polydimethylsiloxane, room temperature curing silicone, polymethylphenylsiloxane, polysilazane, amino-modified silicone, and epoxy-modified silicone. Two or more selected types are mixed, and the molding resin can be impregnated into carbon fiber at a weight of 10 to 200 g/m2.
본 발명의 일 관점(aspect)에 따른 탄소섬유 함침 복합소재에서, 운모시트는, 운모지; 및 운모지에 부착되는 유리섬유 메쉬;를 포함하며, 유리섬유 메쉬를 형성하는 어느 하나의 경사와 이웃한 경사 및 어느 하나의 위사와 이웃한 위사는 0.1~1.0㎜ 간극을 가지도록 직조될 수 있다.In the carbon fiber-impregnated composite material according to one aspect of the present invention, the mica sheet includes: mica paper; and a glass fiber mesh attached to mica paper, wherein the warp adjacent to one of the warps and the weft adjacent to any one of the wefts forming the glass fiber mesh may be woven to have a gap of 0.1 to 1.0 mm.
본 발명을 기술하는 여러 관점들 중 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법은, 원단층을 형성하는 탄소섬유에 성형수지를 함침시켜 공급하는 원단층 공급단계(S1); 원단층에 단열층을 형성하는 운모시트를 가압 합지시켜 탄소섬유 복합소재 반제품이 제조하는 단열층 가압 합지단계(S2); 및 탄소섬유 복합소재 반제품을 건조로를 이용해 건조 및 경화시키는 건조/경화 단계(S3);를 포함할 수 있다.A method of manufacturing a carbon fiber-impregnated composite material according to another aspect among several aspects describing the present invention includes a fabric layer supply step (S1) of impregnating carbon fibers forming a fabric layer with a molding resin and supplying it; Insulating layer pressure laminating step (S2) in which a carbon fiber composite material semi-finished product is manufactured by pressurizing and laminating mica sheets forming an insulating layer on the fabric layer; and a drying/curing step (S3) of drying and curing the carbon fiber composite material semi-finished product using a drying furnace.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 원단층 공급단계(S1)에서, 탄소섬유는, 20~500g/㎡의 중량을 가지도록 셀룰로오스계 또는 폴리아크릴로니트릴계 또는 피치(pitch)계 직물 또는 편물 또는 부직포 또는 펠트를 탄화시켜 형성될 수 있다.In the fabric layer supply step (S1) of the method for manufacturing a carbon fiber-impregnated composite material according to another aspect of the present invention, the carbon fiber is made of cellulose or polyacrylic to have a weight of 20 to 500 g/m2. It can be formed by carbonizing a nitrile-based or pitch-based fabric or knitted fabric or non-woven fabric or felt.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 원단층 공급단계(S1)에서, 성형수지는, 폴리실록산, 폴리디메틸실록산, 실온 경화 실리콘, 폴리메틸페닐실록산, 폴리실라잔, 아미노 변성 실리콘, 에폭시 변성 실리콘 중 어느 하나 또는 선택된 2종이 이상이 혼합되며, 성형수지는 탄소섬유에 10~200g/㎡의 중량으로 함침될 수 있다.In the fabric layer supply step (S1) of the method for manufacturing a carbon fiber impregnated composite material according to another aspect of the present invention, the molding resin is polysiloxane, polydimethylsiloxane, room temperature curing silicone, polymethylphenylsiloxane, and polysiloxane. Any one of silicone, amino-modified silicone, and epoxy-modified silicone, or two or more selected types are mixed, and the molding resin can be impregnated into the carbon fiber at a weight of 10 to 200 g/m2.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 원단층 공급단계(S1)에서는, 탄소섬유를 승온된 성형수지에 침지되도록 권출시킨 상태 하에서 탄소섬유를 10~60분 동안 3~20m/min의 속도로 이송시켜 성형수지가 함침되게 할 수 있다.In the fabric layer supply step (S1) of the method for manufacturing a carbon fiber-impregnated composite material according to another aspect of the present invention, the carbon fibers are immersed in a molding resin at an elevated temperature and unrolled, and the carbon fibers are immersed in 10 ~ It can be impregnated with molding resin by transporting it at a speed of 3 to 20 m/min for 60 minutes.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 단열층 가압 합지단계(S2)에서, 운모시트는, 운모지; 및 운모지에 부착되는 유리섬유 메쉬;를 포함하며, 유리섬유 메쉬를 형성하는 어느 하나의 경사와 이웃한 경사 및 어느 하나의 위사와 이웃한 위사는 0.1~1.0㎜ 간극을 가지도록 직조될 수 있다.In the heat insulation layer pressurization step (S2) of the method for manufacturing a carbon fiber-impregnated composite material according to another aspect of the present invention, the mica sheet includes: mica paper; and a glass fiber mesh attached to mica paper, wherein the warp adjacent to one of the warps and the weft adjacent to any one of the wefts forming the glass fiber mesh may be woven to have a gap of 0.1 to 1.0 mm.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 단열층 가압 합지단계(S2)에서는, 상하로 설치되는 상부가압롤 및 하부가압롤를 이용해 단열층을 상기 원단층에 가압 합지시키되, 원단층은 하부가압롤의 상부 측을 지나도록 원단층 공급단계(S1) 측에서 공급되고, 단열층은 유리섬유 메쉬가 성형수지가 함침된 탄소섬유와 마주하도록 상부가압롤의 전면 측 및 하부 측을 경유할 수 있게 권출되며, 원단층과 단열층은 상부가압롤 및 하부가압롤를 지나며 가압 합지될 수 있다.In the heat insulation layer pressurization step (S2) of the method for manufacturing a carbon fiber-impregnated composite material according to another aspect of the present invention, the heat insulation layer is pressurized and laminated to the fabric layer using an upper pressure roll and a lower pressure roll installed up and down. However, the fabric layer is supplied from the fabric layer supply step (S1) so that it passes through the upper side of the lower pressure roll, and the insulation layer is supplied from the front side and lower part of the upper pressure roll so that the glass fiber mesh faces the carbon fiber impregnated with molding resin. It is unwound so that it can pass through the side, and the fabric layer and insulation layer can be pressed and laminated by passing through the upper pressure roll and the lower pressure roll.
본 발명의 또 다른 일 관점(aspect)에 따른 탄소섬유 함침 복합소재의 제조방법의 건조/경화 단계(S3)에서, 탄소섬유 복합소재 반제품은 100~200℃의 건조로를 30~60분 동안 3~20m/min의 속도로 이송하며 건조 및 경화될 수 있다.In the drying/curing step (S3) of the method for manufacturing a carbon fiber-impregnated composite material according to another aspect of the present invention, the semi-finished carbon fiber composite material is dried in a drying furnace at 100-200°C for 30-60 minutes for 3~60 minutes. It is transported at a speed of 20 m/min and can be dried and hardened.
본 발명에 의하면, 원단층에 성형수지가 함침되기 때문에 탄소섬유로 형성된 원단층에 성형성을 부여할 수 있게 하는 효과를 제공할 수 있게 된다.According to the present invention, since the fabric layer is impregnated with a molding resin, it is possible to provide the effect of providing moldability to the fabric layer formed of carbon fiber.
본 발명에 의하면, 원단층이 탄소섬유로 형성되기 때문에 경량화를 구현할 수 있게 하며, 또한 열전도율이 높아 전기자동차의 배터리의 열을 방열시킬 수 있고, 배터리에서 누전되는 전류가 자동차의 실내로 흘러들어오는 것을 차단할 수 있을 뿐만 아니라 보온성이 우수해 여름, 겨울철 배터리의 온도 변화를 최소화해 배터리의 충방전 효율을 높일 수 있게 하는 효과를 제공할 수 있게 된다. According to the present invention, since the fabric layer is made of carbon fiber, it is possible to realize weight reduction, and the heat conductivity is high, so heat from the battery of an electric vehicle can be dissipated, and current leaking from the battery can be prevented from flowing into the interior of the vehicle. Not only can it be blocked, but it also has excellent thermal insulation properties, which can provide the effect of minimizing temperature changes in the battery in summer and winter, thereby increasing the charging and discharging efficiency of the battery.
본 발명에 의하면, 원단층에 단열층이 가압 합지되기 때문에 배터리에 의한 화재 발생 시 화재 피해를 최소화할 수 있게 하는 효과를 제공할 수 있게 된다.According to the present invention, since the insulation layer is pressurized to the fabric layer, it is possible to provide the effect of minimizing fire damage in the event of a fire caused by a battery.
도 1은 본 발명에 따른 탄소섬유 함침 복합소재를 개략적으로 나타낸 도면.
도 2는 본 발명에 따른 탄소섬유 함침 복합소재의 제조방법의 제조방법을 개략적으로 나타낸 순서도.
도 3은 본 발명에 따른 탄소섬유 함침 복합소재의 제조방법의 제조방법을 개략적으로 도식화한 도면.1 is a diagram schematically showing a carbon fiber-impregnated composite material according to the present invention.
Figure 2 is a flow chart schematically showing the manufacturing method of the carbon fiber impregnated composite material according to the present invention.
Figure 3 is a diagram schematically illustrating the manufacturing method of the carbon fiber impregnated composite material according to the present invention.
이하, 본 발명에 따른 탄소섬유 함침 복합소재 및 이의 제조방법을 구현한 실시형태를 도면을 참조하여 자세히 설명한다.Hereinafter, an embodiment implementing the carbon fiber-impregnated composite material and its manufacturing method according to the present invention will be described in detail with reference to the drawings.
다만, 본 발명의 본질적인(intrinsic) 기술적 사상은 이하에서 설명되는 실시형태에 의해 그 실시 가능 형태가 제한된다고 할 수는 없고, 본 발명의 본질적인(intrinsic) 기술적 사상에 기초하여 통상의 기술자에 의해 이하에서 설명되는 실시형태를 치환 또는 변경의 방법으로 용이하게 제안될 수 있는 범위를 포섭함을 밝힌다. However, the essential technical idea of the present invention cannot be said to be limited to the embodiments described below, and based on the essential technical idea of the present invention, it cannot be said that the possible embodiments are limited by the embodiments described below. It is disclosed that the embodiment described in covers the scope that can be easily proposed by way of replacement or change.
또한, 이하에서 사용되는 용어는 설명의 편의를 위하여 선택한 것이므로, 본 발명의 본질적인(intrinsic) 기술적 사상을 파악하는 데 있어서, 사전적 의미에 제한되지 않고 본 발명의 기술적 사상에 부합되는 의미로 적절히 해석되어야 할 것이다. In addition, the terms used below are selected for convenience of explanation, so in understanding the essential technical idea of the present invention, they are not limited to dictionary meanings and are appropriately interpreted as meanings that correspond to the technical idea of the present invention. It should be.
첨부된 도면 중에서, 도 1은 본 발명에 따른 탄소섬유 함침 복합소재를 개략적으로 나타낸 도면이다.Among the attached drawings, Figure 1 is a diagram schematically showing a carbon fiber-impregnated composite material according to the present invention.
도 1을 참조하면, 본 발명에 따른 탄소섬유 함침 복합소재(100)는 성형수지가 함침된 원단층(110) 및 단열층(120)이 적층되어 형성된다.Referring to FIG. 1, the carbon fiber-impregnated composite material 100 according to the present invention is formed by stacking a fabric layer 110 impregnated with molding resin and an insulation layer 120.
바람직하게는, 본 발명에 따른 탄소섬유 함침 복합소재(100)는 성형수지를 매개로 원단층(110)에 단열층(120)이 가압 합지되어 형성된다.Preferably, the carbon fiber-impregnated composite material 100 according to the present invention is formed by pressurizing the insulation layer 120 to the fabric layer 110 using a molding resin.
먼저, 원단층(110)은 본 발명에 따른 탄소섬유 함침 복합소재(100)의 기재로, 원단층(110)은 전기자동차의 바닥에서 발생하는 소음이 실내로 유입되지 않도록 차단한다.First, the fabric layer 110 is a base material of the carbon fiber impregnated composite material 100 according to the present invention, and the fabric layer 110 blocks noise generated from the bottom of the electric vehicle from entering the interior.
또한, 원단층(110)은 전기자동차의 배터리에서 발생하는 열을 방열시킬 수 있게 하며, 배터리에서 누전되는 전류가 전기자동차의 실내로 흘러들어오지 못하게 차단한다.In addition, the fabric layer 110 dissipates heat generated from the battery of the electric vehicle and blocks current leaking from the battery from flowing into the interior of the electric vehicle.
이를 위해서, 원단층(110)은 성형수지가 함침된 탄소섬유(carbon fiber)로 형성된다.For this purpose, the fabric layer 110 is formed of carbon fiber impregnated with molding resin.
일례로, 원단층(110)은 탄소섬유 전구체를 탄화시켜 형성되며, 탄소섬유 전구체는 셀룰로오스(cellulose)계, 폴리아크릴로니트릴(PAN)계 또는 피치(pitch)계 직물, 편물, 부직포 또는 펠트 중 어느 하나 일 수 있다.For example, the fabric layer 110 is formed by carbonizing a carbon fiber precursor, and the carbon fiber precursor is one of cellulose-based, polyacrylonitrile (PAN)-based, or pitch-based fabric, knitted fabric, non-woven fabric, or felt. It could be any one.
이때, 탄소섬유는 20~500g/㎡의 중량, 바람직하게는 50~200g/㎡의 중량을 가지도록 형성된다. At this time, the carbon fiber is formed to have a weight of 20 to 500 g/m2, preferably 50 to 200 g/m2.
탄소섬유의 중량이 20g/㎡ 미만이면 차음성이 저하되고, 탄소섬유의 중량이 500g/㎡ 초과하면, 전기자동차의 전비(연비)가 떨어지게 된다.If the weight of carbon fiber is less than 20g/m2, sound insulation deteriorates, and if the weight of carbon fiber exceeds 500g/m2, the fuel efficiency of the electric vehicle decreases.
여기서, 탄소섬유 전구체를 탄화시켜 탄소섬유로 제조하는 것은 공지의 기술이므로 이에 대한 상세한 설명은 생략한다.Here, manufacturing carbon fiber by carbonizing a carbon fiber precursor is a known technique, so detailed description thereof will be omitted.
그리고 탄소섬유에 함침되는 성형수지는 탄소섬유에 성형성을 부여한다. And the molding resin impregnated into the carbon fiber gives moldability to the carbon fiber.
성형수지는 폴리실록산(Polysiloxane; PS), 폴리디메틸실록산(Polydimetylsloxane; PDMS), 실온 경화 실리콘(Room temperature vulcanizing; RTV), 폴리메틸페닐실록산(Polymethylphenysiloxane; PMPS), 폴리실라잔(Polysilazane), 아미노 변성 실리콘, 에폭시 변성 실리콘 중 어느 하나 또는 선택된 2종이 이상이 혼합되어 제공될 수 있다.Molding resins include polysiloxane (PS), polydimethylsiloxane (PDMS), room temperature vulcanizing silicone (RTV), polymethylphenysiloxane (PMPS), polysilazane, amino-modified silicone, Any one of epoxy-modified silicones or a mixture of two or more selected types may be provided.
이때, 성형수지는 탄소섬유에 10~200g/㎡의 중량, 바람직하게는 20~50g/㎡의 중량으로 함침된다.At this time, the molding resin is impregnated into the carbon fiber at a weight of 10 to 200 g/m2, preferably 20 to 50 g/m2.
성형수지의 함침 중량이 10g/㎡ 미만이면 차음성이 저하되고, 성형수지의 함침 중량이 200g/㎡ 초과하면 전기자동차의 전비(연비)가 떨어지게 된다.If the impregnated weight of the molding resin is less than 10 g/m2, the sound insulation performance decreases, and if the impregnated weight of the molding resin exceeds 200 g/m2, the fuel efficiency of the electric vehicle decreases.
이러한 성형수지는 본 발명에 따른 탄소섬유 함침 복합소재(100) 성형 시 금형(도시되지 않음)의 온도에 의해 반용융 상태로 상변화 되었다가 경화되면서 탄소섬유가 성형된 상태를 유지하게 한다.This molding resin is phase-changed to a semi-molten state by the temperature of the mold (not shown) when molding the carbon fiber-impregnated composite material 100 according to the present invention, and then hardens to maintain the molded state of the carbon fiber.
단열층(120)은 전기자동차의 배터리에 근접하게 배치되는 부분으로, 단열층(120)은 배터리에서 발생하는 열을 차단해 원단층(110), 다시 말해 성형수지를 보호한다.The insulation layer 120 is a part placed close to the battery of an electric vehicle. The insulation layer 120 blocks heat generated from the battery and protects the fabric layer 110, that is, the molding resin.
이를 위해서, 단열층(120)은 단열성 및 난연성이 우수한 운모시트로 형성된다.For this purpose, the heat insulation layer 120 is formed of a mica sheet with excellent heat insulation and flame retardancy.
이때, 운모시트는 통상의 운모지(mica paper) 및 운모지에 부착되는 유리섬유 메쉬를 포함하는데, 유리섬유 메쉬는 가압 합지 시 원단층(110)에 용이하게 합지되게 한다.At this time, the mica sheet includes ordinary mica paper and a glass fiber mesh attached to the mica paper, and the glass fiber mesh allows it to be easily laminated to the fabric layer 110 during pressure lamination.
이를 위해서, 유리섬유 메쉬를 형성하는 어느 하나의 경사와 이웃한 경사 및 어느 하나의 위사와 이웃한 위사는 0.1~1.0㎜ 간극을 가지도록 직조되어 제공된다.For this purpose, the warp adjacent to one of the warps and the weft adjacent to one of the wefts forming the glass fiber mesh are woven and provided to have a gap of 0.1 to 1.0 mm.
여기서, 간극이 0.1㎜ 미만이면 가압 합지 시 원단층(110)의 탄소섬유에 함침된 성형수지가 유리섬유 메쉬의 간극 내로 침투하지 못해 원단층(110)과 합지되지 않으며, 간극이 1.0㎜를 초과하면 가압 합지 시 원단층(110)의 탄소섬유에 함침된 성형수지가 용이하게 침투할 수 있지만 원단층(110)과의 접착력이 저하된다. Here, if the gap is less than 0.1 mm, the molding resin impregnated in the carbon fiber of the fabric layer 110 cannot penetrate into the gap of the glass fiber mesh during pressure lamination and is not laminated with the fabric layer 110, and the gap exceeds 1.0 mm. If this is done, the molding resin impregnated with the carbon fiber of the fabric layer 110 can easily penetrate during pressure lamination, but the adhesion with the fabric layer 110 is reduced.
하기에는 전술한 바와 같이 형성된 본 발명에 따른 탄소섬유 함침 복합소재(100)의 제조방법을 설명한다.Below, a method for manufacturing the carbon fiber-impregnated composite material 100 according to the present invention formed as described above will be described.
첨부된 도면 중에서, 도 2는 본 발명에 따른 탄소섬유 함침 복합소재의 제조방법을 개략적으로 나타낸 순서도이며, 그리고 도 3은 본 발명에 따른 탄소섬유 함침 복합소재의 제조방법을 개략적으로 도식화한 도면이다.Among the attached drawings, Figure 2 is a flowchart schematically showing the manufacturing method of the carbon fiber-impregnated composite material according to the present invention, and Figure 3 is a diagram schematically showing the manufacturing method of the carbon fiber-impregnated composite material according to the present invention. .
본 발명에 따른 탄소섬유 함침 복합소재(100)는 원단층 공급단계(S1), 단열층 가압 합지단계(S2) 및 건조/경화 단계(S3)를 거쳐 제조된다.The carbon fiber-impregnated composite material 100 according to the present invention is manufactured through a fabric layer supply step (S1), an insulating layer pressure laminating step (S2), and a drying/curing step (S3).
먼저, 원단층 공급단계(S1)는 원단층(110)을 형성하는 탄소섬유에 성형수지를 함침시키고, 성형수지가 함침된 탄소섬유, 즉 원단층(110)을 단열층 가압 합지단계(S2)로 공급하는 공정이다.First, in the fabric layer supply step (S1), the carbon fibers forming the fabric layer 110 are impregnated with a molding resin, and the carbon fibers impregnated with the molding resin, that is, the fabric layer 110, are subjected to the heat insulation layer pressurization step (S2). It is a supply process.
원단층 공급단계(S1)에서는 탄소섬유를 성형수지에 침지시켜 탄소섬유에 성형수지가 함치되게 한다.In the fabric layer supply step (S1), the carbon fibers are immersed in the molding resin so that the carbon fibers are impregnated with the molding resin.
일례로, 원단층 공급단계(S1)에서는 롤(roll) 형태로 권취된 탄소섬유를 승온된 성형수지에 침지되도록 권출시키고, 성형수지에 침지된 탄소섬유를 10~60분 동안 3~20m/min의 속도로 이송시켜 성형수지가 탄소섬유에 함침되게 할 수 있다.For example, in the fabric layer supply step (S1), carbon fibers wound in roll form are unwound to be immersed in molding resin at an elevated temperature, and the carbon fibers immersed in molding resin are moved at 3 to 20 m/min for 10 to 60 minutes. The molding resin can be impregnated into the carbon fiber by transporting it at a speed of .
여기서, 성형수지는 20~80℃, 바람직하게는 40~60℃의 온도로 승온될 수 있는데, 성형수지의 온도가 20℃ 미만이면 후행하는 단열층 가압 합지단계(S2)에서 단열층(120)의 합지가 어렵고, 성형수지의 온도가 80℃를 초과하면 성형수지가 경화되기 때문에 성형수지의 함침이 어려울 수 있으며, 또한 제조된 탄소섬유 함침 복합소재(100)의 성형성이 떨어진다.Here, the molding resin may be heated to a temperature of 20 to 80°C, preferably 40 to 60°C. If the temperature of the molding resin is less than 20°C, the heat insulation layer 120 is laminated in the subsequent heat insulation layer pressurization step (S2). is difficult, and if the temperature of the molding resin exceeds 80°C, the molding resin hardens, so impregnation with the molding resin may be difficult, and the moldability of the manufactured carbon fiber-impregnated composite material 100 is poor.
또한, 탄소섬유의 침지시간이 10분 미만이면 성형수지의 함침률이 떨어져 차음성 및 성형성이 떨어지고, 탄소섬유의 침지시간이 60분을 초과하더라도 무방하나 더 이상의 성형수지의 함침률을 기대할 수 없으며, 작업성이 떨어진다.In addition, if the immersion time of the carbon fiber is less than 10 minutes, the impregnation rate of the molding resin decreases, resulting in poor sound insulation and formability. Even if the immersion time of the carbon fiber exceeds 60 minutes, it is okay, but a further impregnation rate of the molding resin cannot be expected. None, and workability is poor.
또한, 성형수지에 침지된 탄소섬유의 이송 속도가 3m/min 미만이면 성형수지의 함침률을 높일 수는 있으나, 함침되는 성형수지의 중량이 약 200g/㎡을 초과하기 때문에 제조되는 탄소섬유 함침 복합소재(100)의 중량이 증가하게 되고, In addition, if the transport speed of the carbon fiber immersed in the molding resin is less than 3 m/min, the impregnation rate of the molding resin can be increased, but since the weight of the impregnated molding resin exceeds about 200 g/㎡, the carbon fiber impregnated composite manufactured The weight of the material 100 increases,
성형수지에 침지된 탄소섬유의 이송 속도가 20m/min 초과하면 함침되는 성형수지의 중량이 약 10g/㎡ 함침되기 때문에 차음성 및 성형성이 떨어진다.If the transport speed of carbon fiber immersed in molding resin exceeds 20 m/min, the weight of the impregnated molding resin is about 10 g/m2, so sound insulation and moldability are reduced.
단열층 가압 합지단계(S2)는 원단층(110)에 운모시트를 가압 합지시켜 단열층(120)이 합지된 탄소섬유 복합소재 반제품이 제조되게 하며, 제조된 탄소섬유 복합소재 반제품을 건조/경화 단계(S3)로 공급하는 공정이다.In the insulation layer pressurization step (S2), a carbon fiber composite material semi-finished product with the insulation layer 120 is manufactured by pressurizing and laminating a mica sheet to the fabric layer 110, and the manufactured carbon fiber composite material semi-finished product is subjected to a drying/curing step ( This is a process supplied to S3).
단열층 가압 합지단계(S2)에서는 상하로 설치되는 상부가압롤(130) 및 하부가압롤(140)를 이용해 운모시트로 형성되는 단열층(120)을 원단층(110)에 가압 합지시켜 탄소섬유 복합소재 반제품이 제조되게 한다.In the insulation layer pressure lamination step (S2), the insulation layer 120 formed of mica sheet is pressure laminated to the fabric layer 110 using the upper pressure roll 130 and lower pressure roll 140 installed up and down to form a carbon fiber composite material. Allows semi-finished products to be manufactured.
이때, 원단층(110)은 하부가압롤(140)의 상부 측을 지나도록 원단층 공급단계(S1) 측에서 공급되고, 단열층(120)은 운모시트를 형성하는 유리섬유 메쉬가 원단층(110)과 마주하도록 상부가압롤(130)의 전면 측 및 하부 측을 경유할 수 있게 권출되는데, 원단층(110) 및 단열층(120)은 상부가압롤(130) 및 하부가압롤(140)를 지나며 가압 합지된다.At this time, the fabric layer 110 is supplied from the fabric layer supply step (S1) so as to pass through the upper side of the lower pressure roll 140, and the insulation layer 120 is a glass fiber mesh forming a mica sheet. ) is unwound to pass through the front and lower sides of the upper pressure roll 130, and the fabric layer 110 and the insulation layer 120 pass through the upper pressure roll 130 and the lower pressure roll 140. It is pressurized and laminated.
여기서, 상부가압롤(130) 및 하부가압롤(140)의 사이 간격은 제조하고자 하는 탄소섬유 함침 복합소재(100)의 두께에 따라 가변될 수 있다.Here, the distance between the upper pressure roll 130 and the lower pressure roll 140 may vary depending on the thickness of the carbon fiber-impregnated composite material 100 to be manufactured.
건조/경화 단계(S3)는 탄소섬유 복합소재 반제품을 건조 및 경화시켜 본 발명에 따른 탄소섬유 함침 복합소재(100)가 제조되게 하는 공정이다.The drying/curing step (S3) is a process in which the carbon fiber impregnated composite material 100 according to the present invention is manufactured by drying and curing the carbon fiber composite semi-finished product.
건조/경화 단계(S3)에서는 단열층 가압 합지단계(S2)에서 공급되는 탄소섬유 복합소재 반제품을 통상의 건조로(150)를 이용해 건조 및 경화시켜 본 발명에 따른 탄소섬유 함침 복합소재(100)가 제조되게 한다.In the drying/curing step (S3), the carbon fiber composite material semi-finished product supplied in the insulation layer pressurization step (S2) is dried and cured using a typical drying furnace (150) to produce the carbon fiber impregnated composite material (100) according to the present invention. have it manufactured.
일례로, 건조/경화 단계(S3)에서는 단열층 가압 합지단계(S2)에서 공급되는 탄소섬유 복합소재 반제품을 100~200℃, 바람직하게는 150~180℃의 건조로(150)를 30~60분 동안 3~20m/min의 속도로 이송시키면 건조 및 경화시킨다.For example, in the drying/curing step (S3), the carbon fiber composite material semi-finished product supplied in the insulation layer pressurization step (S2) is dried in a drying furnace (150) at 100 to 200°C, preferably 150 to 180°C, for 30 to 60 minutes. It dries and hardens when transported at a speed of 3 to 20 m/min.
여기서, 건조로의 온도, 건조 시간 및 탄소섬유 복합소재 반제품의 이송 속도는 선행하는 원단층 공급단계(S1)에서 탄소섬유에 함침되는 성형수지의 중량에 따라 상기 임계값의 범위 내에서 적절하게 조정될 수 있다.Here, the temperature of the drying furnace, the drying time, and the transfer speed of the carbon fiber composite semi-finished product can be appropriately adjusted within the range of the above threshold according to the weight of the molding resin impregnated into the carbon fiber in the preceding fabric layer supply step (S1). there is.
일례로, 10g/㎡의 성형수지를 함침하기 위해서 이송속도를 20m/min 설정하여 성형수지 침지 시간을 줄이며, 그만큼 이송속도가 빨라 건조기 안에서 건조시간이 줄어들기 때문에 건조온도를 200℃로 설정하여 건조를 진행하며, 200g/㎡ 의 성형수지를 코팅하기 위해서는 이송속도를 3m/min으로 설정하여 성형수지의 침지 시간을 늘리며, 이송속도가 느려 건조기 안에서 건조시간이 늘어나기 때문에 건조온도를 100℃로 설정하여 건조를 진행한다.For example, in order to impregnate 10g/㎡ of molding resin, the transport speed is set to 20m/min to reduce the molding resin immersion time. As the transport speed is fast, the drying time in the dryer is reduced, so the drying temperature is set to 200℃ for drying. In order to coat 200g/㎡ of molding resin, the transport speed is set to 3m/min to increase the immersion time of the molding resin. Since the transport speed is slow, the drying time in the dryer increases, the drying temperature is set to 100℃. Then proceed with drying.
한편, 건조/경화 단계(S3)에서 제조된 본 발명에 따른 탄소섬유 함침 복합소재(100)는 냉각롤(160)의 하부 측을 경유하면서 냉각되고, 냉각된 탄소섬유 복합소재(100)는 도시되지 않았지만 롤(roll) 형태로 권취된다.Meanwhile, the carbon fiber-impregnated composite material 100 according to the present invention manufactured in the drying/curing step (S3) is cooled while passing through the lower side of the cooling roll 160, and the cooled carbon fiber composite material 100 is shown in the figure. Although not made, it is wound in roll form.
상기에는 본 발명에 따른 탄소섬유 함침 복합소재(100)가 전기자동차의 플로어 카펫으로 사용되는 것에 한정하였지만, 본 발명에 따른 탄소섬유 함침 복합소재(100)에 흡음재, 차음재, 필터 등을 융착 및 접합하여 내연기관 자동차의 엔진 및 배기계 흡음재 및 차음재 등으로 사용할 수 있음을 누구나 알 수 있을 것이다.In the above, the carbon fiber-impregnated composite material 100 according to the present invention was limited to use as a floor carpet for an electric vehicle, but sound absorbing materials, sound insulating materials, filters, etc. can be fused and bonded to the carbon fiber-impregnated composite material 100 according to the present invention. Anyone will know that it can be used as a sound absorbing material and sound insulating material for the engine and exhaust system of an internal combustion engine vehicle.
이와 같이 제조되는 본 발명에 따른 탄소섬유 함침 복합소재(100)는 원단층(110)에 성형수지가 함침되기 때문에 탄소섬유로 형성된 원단층(110)에 성형성을 부여할 수 있게 한다. The carbon fiber-impregnated composite material 100 according to the present invention manufactured in this way can provide moldability to the fabric layer 110 formed of carbon fiber because the fabric layer 110 is impregnated with a molding resin.
본 발명에 따른 탄소섬유 함침 복합소재(100)는 원단층(110)이 탄소섬유로 형성되기 때문에 경량화를 구현할 수 있으며, 또한 열전도율이 높아 전기자동차 배터리의 열을 방열시킬 수 있고, 배터리에서 누전되는 전류가 자동차의 실내로 흘러들어오는 것을 차단할 수 있을 뿐만 아니라 보온성이 우수해 여름, 겨울철 배터리의 온도 변화를 최소화해 배터리의 충방전 효율을 높일 수 있게 한다. The carbon fiber-impregnated composite material 100 according to the present invention can be lightweight because the fabric layer 110 is formed of carbon fiber, and has high thermal conductivity, so it can dissipate heat from the electric vehicle battery and prevent short circuit in the battery. Not only can it block current from flowing into the car's interior, but it also has excellent thermal insulation properties, minimizing temperature changes in the battery in summer and winter, thereby increasing battery charging and discharging efficiency.
본 발명에 따른 탄소섬유 함침 복합소재(100)는 원단층(110)에 단열층(120)이 가압 합지되기 때문에 배터리에 의한 화재 발생 시 화재 피해를 최소화할 수 있게 한다.The carbon fiber-impregnated composite material 100 according to the present invention can minimize fire damage in the event of a fire caused by a battery because the insulation layer 120 is pressurized and laminated to the fabric layer 110.
Claims (11)
20~500g/㎡의 중량을 가지는 원단층을 형성하는 탄소섬유에 성형성을 부여하는 성형수지를 10~200g/㎡의 중량으로 함침시켜 공급하는 원단층 공급단계(S1);
상기 원단층에 단열층을 형성하는 운모시트를 가압 합지시켜 탄소섬유 복합소재 반제품이 제조하는 단열층 가압 합지단계(S2); 및
상기 탄소섬유 복합소재 반제품을 건조로를 이용해 건조 및 경화시키는 건조/경화 단계(S3);를 포함하되,
상기 원단층 공급단계(S1)에서는,
상기 탄소섬유는 셀룰로오스계 또는 폴리아크릴로니트릴계 또는 피치계 직물 또는 편물 또는 부직포 또는 펠트를 탄화시켜 형성되고, 상기 성형수지는 폴리실록산, 폴리디메틸실록산, 실온 경화 실리콘, 폴리메틸페닐실록산, 폴리실라잔, 아미노 변성 실리콘, 에폭시 변성 실리콘 중 어느 하나 또는 선택된 2종이 이상이 혼합되며, 상기 탄소섬유를 20~80℃로 승온된 상기 성형수지에 침지되도록 권출시킨 상태 하에서 상기 탄소섬유를 10~60분 동안 3~20m/min의 속도로 이송시켜 상기 성형수지가 함침되게 하며,
상기 단열층 가압 합지단계(S2)에서,
상기 운모시트는,
운모지; 및
상기 운모지에 부착되는 유리섬유 메쉬;를 포함하며,
상기 유리섬유 메쉬를 형성하는 어느 하나의 경사와 이웃한 경사 및 어느 하나의 위사와 이웃한 위사는 0.1~1.0㎜ 간극을 가지도록 직조되되,
상기 원단층은 하부가압롤의 상부 측을 지나도록 상기 원단층 공급단계(S1) 측에서 공급되고, 상기 단열층은 상기 유리섬유 메쉬가 상기 성형수지가 함침된 상기 탄소섬유와 마주하도록 상부가압롤의 전면 측 및 하부 측을 경유할 수 있게 권출되며, 상기 원단층과 상기 단열층은 상기 상부가압롤 및 상기 하부가압롤를 지나며 가압 합지되고,
상기 건조/경화 단계(S3)에서,
상기 탄소섬유 복합소재 반제품은 100~200℃의 상기 건조로를 30~60분 동안 3~20m/min의 속도로 이송하며 건조 및 경화되고, 냉각롤의 하부 측을 경유하면서 냉각되는 탄소섬유 함침 복합소재의 제조방법.
In the carbon fiber impregnated composite material that can be used as a floor carpet for electric vehicles and its manufacturing method,
A fabric layer supply step (S1) of impregnating carbon fibers forming a fabric layer with a weight of 20 to 500 g/m2 with a molding resin that imparts moldability and supplying the fabric layer to a weight of 10 to 200 g/m2;
An insulating layer pressurized laminating step (S2) in which a carbon fiber composite material semi-finished product is manufactured by pressurizing and laminating mica sheets forming an insulating layer on the fabric layer; and
Includes a drying/curing step (S3) of drying and curing the carbon fiber composite semi-finished product using a drying furnace,
In the fabric layer supply step (S1),
The carbon fiber is formed by carbonizing cellulose-based, polyacrylonitrile-based, or pitch-based fabric, knitted fabric, nonwoven fabric, or felt, and the molding resin is polysiloxane, polydimethylsiloxane, room temperature curing silicone, polymethylphenylsiloxane, polysilazane, Any one of amino-modified silicone and epoxy-modified silicone or two or more selected types are mixed, and the carbon fibers are immersed in the molding resin heated to 20-80° C. and unrolled, and the carbon fibers are then unwound for 10-60 minutes. It is transported at a speed of 3 to 20 m/min to be impregnated with the molding resin,
In the insulation layer pressurized lamination step (S2),
The mica sheet is,
mica paper; and
It includes a glass fiber mesh attached to the mica paper,
The warp adjacent to any one of the warps and the weft adjacent to any one of the wefts forming the glass fiber mesh are woven to have a gap of 0.1 to 1.0 mm,
The fabric layer is supplied from the fabric layer supply step (S1) so as to pass through the upper side of the lower pressure roll, and the insulation layer is provided by the upper pressure roll so that the glass fiber mesh faces the carbon fiber impregnated with the molding resin. It is unwound through the front side and the bottom side, and the fabric layer and the insulation layer are pressurized and laminated while passing through the upper pressure roll and the lower pressure roll,
In the drying/curing step (S3),
The carbon fiber composite material semi-finished product is dried and hardened by being transported through the drying furnace at 100 to 200°C at a speed of 3 to 20 m/min for 30 to 60 minutes, and is a carbon fiber impregnated composite material that is cooled while passing through the lower side of the cooling roll. Manufacturing method.
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