KR20180045953A - Method for manufacturing carbon fiber fabric with excellent flexibility and electrical conductivity ofter washing, carbon fiber fabric manufactured thereby and wearable device comprizing thereof - Google Patents
Method for manufacturing carbon fiber fabric with excellent flexibility and electrical conductivity ofter washing, carbon fiber fabric manufactured thereby and wearable device comprizing thereof Download PDFInfo
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- KR20180045953A KR20180045953A KR1020160140044A KR20160140044A KR20180045953A KR 20180045953 A KR20180045953 A KR 20180045953A KR 1020160140044 A KR1020160140044 A KR 1020160140044A KR 20160140044 A KR20160140044 A KR 20160140044A KR 20180045953 A KR20180045953 A KR 20180045953A
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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
- D03D15/247—Mineral
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- D03D15/0016—
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D1/00—Garments
- A41D1/002—Garments adapted to accommodate electronic equipment
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- 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
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
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- 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
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/16—Yarns or threads made from mineral substances
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0088—Fabrics having an electronic function
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- D03D15/08—
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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
- D03D15/50—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 properties of the yarns or threads
- D03D15/56—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 properties of the yarns or threads elastic
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- 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
- D06C7/04—Carbonising or oxidising
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- 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
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- 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
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Woven Fabrics (AREA)
Abstract
Description
본 발명은 탄소섬유 원단의 제조방법, 이로 제조된 탄소섬유 원단 및 이를 포함하는 웨어러블 디바이스(Wearable device)에 관한 것이다.BACKGROUND OF THE
구체적으로, 본 발명은 세탁 후 전기 전도도가 우수하여 세탁이 가능하고 유연성도 뛰어나 의류 등과 같이 착용이 가능한 탄소섬유 원단의 제조방법, 이로 제조된 탄소섬유 직물 및 이를 포함하는 웨어러블 디바이스(Wearable device)에 관한 것이다.More particularly, the present invention relates to a method of manufacturing a carbon fiber fabric which is excellent in electrical conductivity after washing and is excellent in flexibility and can be worn as clothes, etc., a carbon fiber fabric manufactured thereby, and a wearable device .
최근 탄소섬유들이 서로 교차하면서 엮어져 있는 면상 구조체 형태를 갖는 탄소섬유 원단을 면상발열체 소재, 면상방열체 소재 또는 착용 가능한 전자기기(이하 "웨어러블 디바이스(Wearable device)"라고 약칭한다) 소재 등에 적용하기 위한 연구가 활발하게 진행되고 있다.BACKGROUND ART [0002] Recently, carbon fiber fabrics having a planar structure type in which carbon fibers are interwoven with each other are applied to a surface heating element material, a surface heat dissipation material, or a wearable electronic device (hereinafter abbreviated as a "wearable device") Research is actively being carried out.
탄소섬유 원단을 제조하는 종래기술로서는 필라멘트 형태의 탄소섬유로 직물을 제직하거나 편물을 제편하는 방법이 널리 알려져 있으나, 필라멘트 형태인 탄소섬유는 구부리거나 접혀졌을때 쉽게 부스러지는 성질을 갖기 때문에 탄소섬유 원단을 제직 또는 제편하기 매우 어려운 문제점이 있었다.As a conventional technique for producing a carbon fiber fabric, a method of weaving or knitting a fabric with filament-type carbon fibers is widely known, but since the filament type carbon fiber has a property of being easily broken when bent or folded, There has been a problem in that it is very difficult to weave or carry it.
또한, 상기 종래방법으로 제조된 탄소섬유 원단은 사용 중 외력에 의해 구부려지거나 접혀지는 현상이 반복될 경우 절단되거나 형태가 손상되고 전기 전도도의 물성이 크게 저하되기 때문에 세탁 후 반복사용이 어려웠고, 그로 인해 웨어러블 디바이스 소재로 적용하기에는 많은 한계가 있었다.In addition, the carbon fiber fabric produced by the above-mentioned conventional method is severely cut or deformed when repeatedly bent or folded due to an external force during use, and the physical properties of electrical conductivity are greatly deteriorated. There are many limitations to apply as wearable device material.
탄소섬유 원단을 제조하는 또 다른 종래기술로서 대한민국 공개특허 제10-2006-0133048호에서는 탄소섬유 방적사에 수용성 고분자를 코팅한 후 수용성 고분자가 코팅된 탄소섬유 방적사로 직물을 제직한 후, 상기 수용성 고분자를 용해시켜 탄소섬유 원단을 제조하는 방법을 게재하고 있다.As another conventional technique for manufacturing a carbon fiber fabric, Korean Patent Laid-Open Publication No. 10-2006-0133048 discloses a method for producing a carbon fiber fabric by coating a water-soluble polymer on a carbon fiber spun yarn, woven a fabric with a carbon fiber spun yarn coated with a water-soluble polymer, To prepare a carbon fiber fabric.
상기의 종래방법으로 제조된 탄소섬유 원단은 필라멘트 형태인 탄소섬유 대신에 방적사 형태인 탄소섬유(탄소섬유 방적사)가 서로 교차하면서 엮여진 구조이기 때문에 사용 중 외력에 의해 구부러지거나 접혀지는 현상이 반복될 경우 절단되거나 손상되어 전기 전도도 등의 물성이 저하되는 문제점을 해결할 수는 있지만, 제직전 수용성 고분자를 탄소섬유 방적사에 코팅하는 공정과 제직 후 수용성 고분자를 제거하는 공정을 거쳐야 하기 때문에 제조공정이 복잡한 문제점이 있었다.Since the carbon fiber fabric produced by the conventional method has a structure in which carbon fibers (carbon fiber spun yarns) in the form of yarn are interwoven with each other instead of filament type carbon fibers, the phenomenon of bending or folding due to external force is repeated However, since the process of coating the water-soluble polymer immediately before the process with the carbon fiber spun yarn and the process of removing the water-soluble polymer after the weaving process are complicated, the manufacturing process is complicated .
또한, 상기의 종래방법은 탄소섬유 원단으로부터 수용성 고분자를 완벽하게 제거할 수 없기 때문에, 다시 말해 탄소섬유 원단에 수용성 고분자가 소량 잔존하기 때문에 3.75V와 같은 저전압의 전류를 인가시 발열효과가 없고 세탁 후 전기 전도도가 떨어지는 문제점이 있었다.In addition, since the conventional method can not completely remove the water-soluble polymer from the carbon fiber fabric, in other words, a small amount of the water-soluble polymer remains in the carbon fiber fabric, there is no heat generation effect when a low voltage current such as 3.75 V is applied. There is a problem that the electric conductivity is lowered.
본 발명의 과제는 양호한 제직 또는 제편 공정성으로 탄소섬유 원단을 제조하는 방법을 제공하는 것이다.It is an object of the present invention to provide a method for producing a carbon fiber fabric with good weaving or batch processability.
본 발명의 또 다른 과제는 저전압의 전류는 인가시에도 발열효과가 뛰어나며, 세탁 후에도 양호한 전기 전도도를 구비하며 세탁이 가능하고, 외력에 의해 구부러지거나 접혀져도 형태 및 전기 전도도 등의 물성이 저하되지 않도록 우수한 유연성을 구비하여 웨어러블 디바이스(Wearable device) 소재 등으로 유용한 탄소섬유 원단을 제공하는 것이다.Another object of the present invention is to provide a cleaning composition which is excellent in heat-generating effect even when a low-voltage current is applied, has a good electrical conductivity even after washing, can be washed, and is free from deterioration of physical properties such as shape and electrical conductivity even when bent or folded by external force It is possible to provide a carbon fiber fabric useful as a wearable device material with excellent flexibility.
본 발명의 또 다른 과제는 상기 탄소섬유 원단을 포함하는 웨어러블 디바이스를 제공하는 것이다.A further object of the present invention is to provide a wearable device comprising the carbon fiber fabric.
이와 같은 과제를 달성하기 위해서, 본 발명에서는 프레커서(Precussor)인 산화섬유 방적사로 원단을 제조한 후 제조된 원단을 700~1,500℃의 온도로 탄화시켜 탄소섬유 원단을 제조한다.In order to achieve the above object, in the present invention, a fabric is manufactured from a precursor of oxidized fiber yarn, and the fabric is carbonized at a temperature of 700 to 1,500 ° C to produce a carbon fiber fabric.
본 발명은 양호한 제직 공정성 또는 제편 공정성으로 탄화섬유 원단을 제조할 수 있고, 본 발명의 탄소섬유 원단은 바인더 수지나 제직성을 부여하기 위한 코팅수지 등을 전혀 포함하고 있지 않고 방적사 형태의 탄소섬유들만으로 구성되기 때문에 유연성과 세탁 후 전기 전도성이 뛰어나고 낮은 전압의 전류를 인가하여도 양호한 발열성능이 구현한다.The present invention can produce a carbon fiber fabric with good weaving processability or processability, and the carbon fiber fabric of the present invention does not contain any binder resin or coating resin for imparting warpability, It is excellent in flexibility and conductivity after washing, and good heat performance can be achieved even when a low voltage current is applied.
그 결과, 본 발명의 탄소섬유 원단은 다양한 웨어러블 디바이스(Wearable device) 소재로 유용하다.As a result, the carbon fiber fabric of the present invention is useful as various wearable device materials.
도 1은 실시예 1로 제조된 후 세탁 전인 탄소섬유 원단의 전자주사현미경 사진.
도 2는 실시예 1로 제조된 후 10회 세탁한 탄소섬유 원단의 촬영한 전자주사현미경 사진.
도 3은 실시예 1로 제조된 후 10회 세탁한 탄소섬유 원단의 X선회절분석(XRD) 그래프.
도 4는 실시예 1로 제조한 탄소섬유 원단에 15V의 전류를 50초 동안 인가한 후 30초 동안 전류를 차단하는 과정을 반복하면서 시간에 따른 탄소섬유 원단의 온도변화를 측정한 그래프.
도 5는 실시예 1로 제조한 탄소섬유 원단에 1~15V의 전류를 50초 동안 인가한 후 30초 동안 전류를 차단하는 과정을 반복하면서 전압변화에 따른 탄소섬유 원단의 온도 변화를 측정한 그래프.
도 6은 실시예 1로 제조되어 평편하게 펼쳐진 탄소섬유 원단에 빨간색 LED 발광 소자를 연결한 후 전압을 인가할 경우 상기 빨간색 LED 발광소자가 발광되는 것을 나타내는 이미지 사진.
도 7은 실시예 1로 제조되어 접혀진 탄소섬유 원단에 빨간색 LED 발광 소자를 연결한 후 전압을 인가할 경우 상기 빨간색 LED 발광소자가 발광되는 것을 나타내는 이미지 사진.Fig. 1 is an electron micrograph of a carbon fiber fabric prepared in Example 1 and before washing. Fig.
Fig. 2 is an electron micrograph of a carbon fiber cloth fabricated in Example 1 and then washed 10 times. Fig.
FIG. 3 is an X-ray diffraction (XRD) graph of the carbon fiber fabric prepared in Example 1 and then washed 10 times.
FIG. 4 is a graph showing a change in temperature of a carbon fiber fabric according to time while repeating a process of applying a current of 15 V to a carbon fiber fabric prepared in Example 1 for 50 seconds and then cutting off a current for 30 seconds.
5 is a graph showing a change in temperature of a carbon fiber fabric according to a voltage change while repeating the process of applying a current of 1 to 15 V for 50 seconds to the carbon fiber fabric prepared in Example 1 for 30 seconds, .
FIG. 6 is a photograph showing that the red LED is lighted when a voltage is applied after connecting a red LED light emitting device to a carbon fiber fabric that is manufactured in Example 1 and laid flat. FIG.
FIG. 7 is a photograph showing that the red LED is lighted when a voltage is applied after connecting a red LED light emitting device to a folded carbon fiber fabric manufactured in Example 1. FIG.
이하, 첨부한 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 탄소섬유 원단의 제조방법은, (ⅰ) 단섬유 형태의 폴리아크릴로니트릴계(PAN 계) 산화섬유 및 피치계 산화섬유 중에서 선택된 1종을 사용하여 방적공정을 거쳐 산화섬유 방적사를 제조하는 공정; (ⅱ) 상기 산화섬유 방적사로 원단을 제조하는 공정; 및 (ⅲ) 상기 원단을 700~1,500℃의 온도로 열처리하여 탄화시키는 공정;을 포함한다.A method for producing a carbon fiber fabric according to the present invention comprises the steps of: (i) spinning an oxide fiber yarn using a spinning process using a short fiber type polyacrylonitrile (PAN) oxide fiber and a pitch- A manufacturing process; (Ii) fabricating the fabric with the oxidized fiber spun yarn; And (iii) carbonizing the fabric by heat treatment at a temperature of 700 to 1,500 ° C.
상기 폴리아크릴로니트릴계(PAN계) 산화섬유 또는 피치계 산화섬유는 폴리아크릴로니트릴계 섬유 또는 피치계 산화섬유를 200~400℃에서 열처리하는 안정화 공정을 거쳐 제조된 것이다.The polyacrylonitrile-based (PAN-based) oxidized fiber or the pitch-based oxidized fiber is produced through a stabilization process of heat-treating the polyacrylonitrile-based fiber or the pitch-based oxidized fiber at 200 to 400 ° C.
폴리아크릴로니트릴계(PAN계) 산화섬유 또는 피치계 산화섬유로 제조되는 원단은 직물 형태일 수도 있고 편물형태일 수도 있다.The fabric made of polyacrylonitrile (PAN) oxide fiber or pitch-based oxidizing fiber may be in the form of a fabric or a knitted fabric.
통상적으로, 폴리아크릴로니트릴계(PAN계) 탄소섬유는 90% 이상이 탄소원자로 구성된 섬유로서, 전구체인 폴리아크릴로니트릴(PAN) 섬유를 200℃~400℃에서 열처리하는 안정화 공정을 거쳐 폴리아크릴로니트릴계(PAN 계) 산화섬유 (일명 "옥시팬" 이라고도 함)를 제조한 다음, 계속해서 1,000~2,500℃에서 열처리하는 탄화공정을 거쳐 제조되고 있다.Typically, a polyacrylonitrile (PAN) carbon fiber is a fiber composed of at least 90% of carbon atoms, and is stabilized by heating the precursor polyacrylonitrile (PAN) fibers at 200 ° C to 400 ° C, (PAN-based) oxidized fiber (also referred to as "oxyfan"), and subsequently subjected to a carbonization process in which heat treatment is performed at 1,000 to 2,500 占 폚.
본 발명에서 사용하는 폴리아크릴로니트릴계(PAN계) 산화섬유는 전구체인 폴리아크릴로니트릴 섬유를 200~400℃에서 열처리하여 안정화시켜 제조한 섬유로서 폴리아크릴로니트릴계(PAN계) 탄소섬유와는 달리 유연성이 뛰어나 원단을 제직 또는 제편하기 용이하며, 그로 인해 본 발명은 원단의 제조공정성이 우수하게 된다.The polyacrylonitrile-based (PAN-based) oxidized fiber used in the present invention is a fiber prepared by stabilizing polyacrylonitrile fiber as a precursor by heat treatment at 200 to 400 ° C, and is made of polyacrylonitrile-based (PAN- The fabric is easy to be woven or knitted easily because of its excellent flexibility, so that the present invention has excellent manufacturing processability of the fabric.
한편, 본 발명에서는 원단 제조시, 다시 말해 직물을 제직하거나 편물을 제편할 때, 필라멘트 형태의 폴리아크릴로니트릴계(PAN계) 산화섬유 또는 피치계 산화섬유를 사용하는 대신에 폴리아크릴로니트릴계(PAN계) 산화섬유 방적사 또는 피치계 산화섬유 방적사를 사용함으로써, 제조된 원단이 외력에 구부러지거나 겹쳐졌을때 쉽게 파손되는 것을 효과적으로 방지한다.Meanwhile, in the present invention, in the production of a fabric, that is, when weaving a fabric or knitting a fabric, instead of using a polyacrylonitrile (PAN) oxide fiber or a pitch-based oxidizing fiber in the form of filaments, a polyacrylonitrile- (PAN-based) oxidized fiber spun yarn or pitch-based oxidized fiber spun yarn effectively prevents the manufactured fabric from being easily broken when it is bent or overlapped with an external force.
본 발명에서는 폴리아크릴로니트릴계(PAN계) 산화섬유 방적사 또는 피치계 탄화섬유 방적사로 제조된 원단을 700~1,500℃의 온도에서 1분 ~ 300분 동안 열처리하여 탄화시켜 최종제품인 탄소섬유 원단을 제조한다.In the present invention, a fabric made of polyacrylonitrile (PAN) oxide fiber yarn or pitch carbon fiber yarn is carbonized by heat treatment at a temperature of 700 to 1,500 ° C for 1 minute to 300 minutes to prepare a final product, do.
이때, 열처리온도 700℃ 미만이거나 열처리 시간이 1분 미만인 경우에는 충분한 탄화가 수행되지 못해서 탄소섬유 원단의 전기전도도가 저하되며, 열처리온도가 1,500℃를 초과하거나 열처리 온도가 300분을 초과하는 경우에는 탄소섬유 원단의 강도 및 신도가 떨어져 바람직하지 못하다.If the heat treatment temperature is less than 700 ° C or the heat treatment time is less than 1 minute, sufficient carbonization is not performed and the electric conductivity of the carbon fiber fabric is lowered. If the heat treatment temperature exceeds 1,500 ° C or the heat treatment temperature exceeds 300 minutes The strength and elongation of the carbon fiber fabric are lowered, which is undesirable.
상기와 같은 방법으로 제조된 본 발명의 탄소섬유 원단은 탄소섬유들이 서로 교차하면서 엮어져 유연성을 구비하는 면상구조체 형태이고, 10회 세탁 후에도 1~100 Ohm/sg(Ω/□)의 면 저항(Sheet resistance)를 구비하고, 3.75V의 전압을 인가시에도 온도가 40~50℃까지 상승되는 발열성을 구비한다.The carbon fiber fabric of the present invention produced by the above-mentioned method is in the form of a planar structure in which carbon fibers are interwoven with each other to have flexibility, and the surface resistance of 1 to 100 Ohm / sg (Ω / Sheet resistance, and has a heat generating property that the temperature is raised to 40 to 50 DEG C even when a voltage of 3.75 V is applied.
본 발명의 탄소섬유 원단은 바인더 수지 등을 전혀 포함하지 않고 순수하게 탄소섬유 만으로 구성되기 때문에 저전압의 전류를 인가할 경우에도 발열성능이 우수하다.Since the carbon fiber fabric of the present invention does not contain any binder resin or the like and is composed purely of carbon fiber, the heating performance is excellent even when a low-voltage current is applied.
구체적으로, 본 발명의 탄소섬유 원단은 3.75V의 전압을 인가시에도 온도가 40~50℃까지 상승되는 우수한 발열성능을 구비한다.Specifically, the carbon fiber fabric of the present invention has an excellent heat-generating performance such that the temperature is increased to 40 to 50 ° C even when a voltage of 3.75 V is applied.
또한, 본 발명의 탄소섬유 원단은 필라멘트 형태가 아니라 방적사 형태인 탄소섬유 방적사들이 서로 교차하면서 엮어진 구조이기 때문에 유연성이 우수하여 외력에 의해 구부러지거나 접혀질 경우 형태가 파손되어 전기 전도도 등의 물성이 저하되고 현상이 발생되지 않으며, 그로 인해 세탁 후 사용이 가능하다.In addition, the carbon fiber fabric of the present invention is not a filament type but a spun yarn type carbon fiber spun yarns interweaving with each other, so that the fabric is excellent in flexibility. When bent or folded due to external force, its shape is broken and its physical properties such as electric conductivity Deteriorates and does not cause a phenomenon, so that it can be used after washing.
구체적으로, 본 발명의 탄소섬유 원단은 10회 세탁 후에도 1~100 Ohm/sg(Ω/□)의 면 저항(Sheet resistance)를 구비한다.Specifically, the carbon fiber fabric of the present invention has a sheet resistance of 1 to 100 Ohm / sg (Ω / □) even after washing 10 times.
본 발명은 상기 탄소섬유 원단을 구비하고 있는 면상 발열체, 면상 방열체 또는 LED 전자 소재 등의 웨어러블 디바이스(Wearable device)를 포함한다.The present invention includes a wearable device such as a surface heating element having a carbon fiber fabric, a surface heat emission element, or an LED electronic material.
상기 면상 발열체는 본 발명의 탄소섬유 원단의 양 말단부에 금속 전극이 설치되고 나머지 부분은 절연 처리한 제품으로 상기 금속 전극에 전류를 인가할 때 열을 발생시키는 제품을 의미한다.The planar heating element refers to a product in which a metal electrode is provided at both ends of the carbon fiber fabric of the present invention and the remaining portion is insulated, and generates heat when current is applied to the metal electrode.
본 발명은 양호한 제직 공정성 또는 제편 공정성으로 탄화섬유 원단을 제조할 수 있고, 본 발명의 탄소섬유 원단은 바인더 수지나 제직성을 부여하기 위한 코팅수지 등을 전혀 포함하고 있지 않고 방적사 형태의 탄소섬유들만으로 구성되기 때문에 유연성과 세탁 후 전기 전도성이 뛰어나고 낮은 전압의 전류를 인가하여도 양호한 발열성능이 구현한다.The present invention can produce a carbon fiber fabric with good weaving processability or processability, and the carbon fiber fabric of the present invention does not contain any binder resin or coating resin for imparting warpability, It is excellent in flexibility and conductivity after washing, and good heat performance can be achieved even when a low voltage current is applied.
그 결과, 본 발명의 탄소섬유 원단은 다양한 웨어러블 디바이스(Wearable device) 소재로 유용하다.As a result, the carbon fiber fabric of the present invention is useful as various wearable device materials.
이하, 실시예를 통하여 본 발명을 구체적으로 살펴본다.Hereinafter, the present invention will be described in detail by way of examples.
그러나, 본 발명의 보호범위는 하기 실시예만으로 한정되게 해석되는 것은 아니다.However, the scope of protection of the present invention is not limited to the following examples.
실시예Example 1 One
젤테크 회사(Zeltek company)에 제품인 폴리아크릴로니트릴계(PAN 계) 산화섬유(옥시팬)을 40㎜ 길이로 잘라 단섬유(Staple)을 제조한 다음, 이들을 방적공정에 투입하여 폴리아크릴로니트릴계(PAN 계) 산화섬유 방적사를 제조하였다.A polyacrylonitrile (PAN) oxide fiber (oxyphene), which is a product of Zeltek company, is cut to a length of 40 mm to prepare a staple, which is then subjected to a spinning process to produce polyacrylonitrile Based (PAN - based) fiber spun yarn.
다음으로는 상기 폴리아크릴로니트릴계(PAN 계) 산화섬유 방적사를 경사 및 위사로 사용하여 직물을 제직 하였다.Next, the fabric was woven using the polyacrylonitrile-based (PAN-based) oxidized fiber spun yarn as warp and weft yarns.
다음으로는 제직된 상기 직물을 1,100℃에서 2시간 동안 열처리하면서 탄화시켜 탄소섬유 원단을 제조하였다.Next, the woven fabric was carbonized while being heat-treated at 1,100 ° C for 2 hours to prepare a carbon fiber fabric.
실시예 1로 제조한 탄소섬유 원단의 전자주사현미경 사진은 도 1과 같았고, 실시예 1로 제조한 탄소섬유 원단을 일반 세탁기 표준모드에서 10회 세탁한 후 촬영한 전자주사현미경 사진은 도 2와 같았다.The electron micrograph of the carbon fiber fabric prepared in Example 1 was as shown in FIG. 1, and the carbon fiber fabric prepared in Example 1 was washed 10 times in the standard washing machine standard mode. It was the same.
도 1과 도 2로부터 실시예 1로 제조된 탄소섬유 원단은 세탁 후에도 구조변화나 표면특성의 변화가 없음을 알 수 있었다.From FIGS. 1 and 2, it was found that the carbon fiber fabric prepared in Example 1 had no change in structure or surface characteristics even after washing.
실시예 1로 제조된 후 일반세탁기 표준모드에서 10회 세탁한 탄소섬유 원단의 X선회절분석(XRD) 그래프는 도 3과 같았고, 이로부터 실시예 1로 제조된 탄소섬유 원단은 일반세탁기 표준모드에서 10회 세탁 후에도 26°탄소성분 피크가 뚜렷하게 보이는 것을 확인할 수 있었다.The X-ray diffraction (XRD) graph of the carbon fiber fabric washed 10 times in the standard washing machine standard mode after being manufactured in Example 1 was as shown in FIG. 3, and the carbon fiber fabric prepared in Example 1 was classified into the general washing machine standard mode , It was confirmed that the carbon component peak was clearly visible even after washing 10 times.
실시예 1로 제조한 탄소섬유 원단에 15V의 전류를 50초 동안 인가한 후 30초 동안 전류를 차단하는 과정을 반복하면서 시간에 따른 탄소섬유 원단의 온도변화를 측정한 그래프는 도 4와 같았고, 실시예 1로 제조한 탄소섬유 원단에 1~15V의 전류를 50초 동안 인가한 후 30초 동안 전류를 차단하는 과정을 반복하면서 전압 변화에 따른 탄소섬유 원단의 온도 변화를 측정한 그래프는 도 5와 같았다.FIG. 4 is a graph illustrating a change in temperature of a carbon fiber fabric according to time while repeating a process of applying a current of 15 V to a carbon fiber fabric prepared in Example 1 for 50 seconds and then cutting off a current for 30 seconds, The graph of the temperature change of the carbon fiber fabric according to the voltage change while repeating the process of applying the current of 1 to 15 V for 50 seconds to the carbon fiber fabric prepared in Example 1 for 30 seconds, Respectively.
도 4 및 도 5로부터 실시예 1로 제조한 탄소섬유 원단은 3.75V의 낮은 전압에서도 평균 44.85℃로 발열되고, 12V의 전압에서는 245.4℃로 발열되고, 15V의 전압에서는 331℃로 발열됨을 알 수 있었다.4 and 5, it can be seen that the carbon fiber fabric prepared in Example 1 generates heat at an average of 44.85 ° C at a low voltage of 3.75V, generates heat at 245.4 ° C at a voltage of 12V and generates heat at 331 ° C at a voltage of 15V there was.
도 6 및 도 7로부터 실시예 1로 제조한 탄소섬유 원단은 평편하게 펼쳐진 상태는 물론 접혀진 상태에서도 빨간색 LED 소자를 상기 탄소섬유 원단과 연결하여 접압을 인가하는 경우 상기 빨간색 LED 발광소자가 발광되는 것을 확인할 수 있었다.6 and 7, the carbon fiber fabric prepared in Example 1 is flat and unfolded, and when the red LED device is connected to the carbon fiber fabric and the contact pressure is applied in the folded state, the red LED light emitting device emits light I could confirm.
Claims (5)
(ⅱ) 상기 산화섬유 방적사로 원단을 제조하는 공정; 및
(ⅲ) 상기 원단을 700~1,500℃의 온도로 열처리하여 탄화시키는 공정;을 포함하는 것을 특징으로 하는 탄소섬유 원단의 제조방법.(I) a step of producing an oxidized fiber spun yarn by spinning using one selected from short fiber type polyacrylonitrile (PAN) oxide fiber and pitch type oxide fiber;
(Ii) fabricating the fabric with the oxidized fiber spun yarn; And
(Iii) carbonizing the fabric by heat-treating the fabric at a temperature of 700 to 1,500 ° C.
A surface heat emission element, a surface heat emission element, and an LED electronic material including the carbon fiber fabric according to claim 4.
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| JPH1064666A (en) * | 1996-08-20 | 1998-03-06 | Raito Black:Kk | Carbon fiber heating element and method for using the same |
| KR20000007002A (en) * | 1999-11-18 | 2000-02-07 | 이명일 | produce way of semiconductor fiber and with this use of face heating element |
| JP2003336145A (en) * | 2002-03-13 | 2003-11-28 | Mitsubishi Chemicals Corp | Conductive carbonaceous fiber woven fabric and solid polymer fuel cell using the same |
| JP2010261108A (en) * | 2007-08-31 | 2010-11-18 | Hokkaido Univ | Synthetic fiber, synthetic fiber yarn or fiber structure having carbon nano tubes adhered thereto and method for producing these |
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| JPH1064666A (en) * | 1996-08-20 | 1998-03-06 | Raito Black:Kk | Carbon fiber heating element and method for using the same |
| KR20000007002A (en) * | 1999-11-18 | 2000-02-07 | 이명일 | produce way of semiconductor fiber and with this use of face heating element |
| JP2003336145A (en) * | 2002-03-13 | 2003-11-28 | Mitsubishi Chemicals Corp | Conductive carbonaceous fiber woven fabric and solid polymer fuel cell using the same |
| JP2010261108A (en) * | 2007-08-31 | 2010-11-18 | Hokkaido Univ | Synthetic fiber, synthetic fiber yarn or fiber structure having carbon nano tubes adhered thereto and method for producing these |
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| WO2022150232A1 (en) * | 2021-01-06 | 2022-07-14 | ExxonMobil Technology and Engineering Company | Steam cracking process for converting crude oils to pitch compositions spinnable into carbon articles |
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