KR20140052877A - 단일 배향성 고밀도 탄소나노섬유펠트, 상기 탄소나노섬유펠트 제조방법 및 상기 탄소나노섬유펠트를 포함하는 탄소나노섬유펠트 응용제품 - Google Patents
단일 배향성 고밀도 탄소나노섬유펠트, 상기 탄소나노섬유펠트 제조방법 및 상기 탄소나노섬유펠트를 포함하는 탄소나노섬유펠트 응용제품 Download PDFInfo
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- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
도 2 은 본 발명에 따른 다양한 농도의 방사용액의 점도를 나타낸 그래프,
도 3 중 (a)는 본 발명의 일 실시예에 의한 단일배향성 탄소나노섬유 펠트의 단일배향성을 보여주는 주사전자현미경사진이고, (b)는 일반전기방사법으로 제조된 PAN계 탄소나노섬유펠트의 주사전자현미경 사진,
도 4 는 본 발명의 다른 실시예에 의한 단일배향성 PAN 순중합체 & PAN 공중합체 나노섬유펠트들의 인장강도측정 결과 그래프.
도 5는 본 발명의 또 다른 실시예에서 얻어진 단일배향성 PNA/TEOS 탄소나노섬유펠트를 포함하는 슈퍼캐패시터 전극의 충방전 그래프 .
탄화 온도 |
겉보기 밀도(g/cm3) | 섬유 밀도(g/cm3) | ||||||
실시예1 | 실시예2 | 비교예 1 | 비교예 2 | 실시예1 | 실시예2 | 비교예 1 | 비교예 2 | |
프리 커서 |
0.5231 | - | 0.3098 | - | < 1.1795 | - | < 1.1600 | - |
800 ℃ | 1.3090 | - | 0.4580 | - | 1.7373 | - | 1.6858 | - |
1400℃ | - | 0.7407 | - | - | 1.5307 | - | - |
단일배향성 탄소나노섬유펠트 2 |
1500℃ 열처리된 일반 전기방사 탄소나노섬유 | |
전기전도도 (S/cm) |
136.78 | 14.86 |
PAN/TEOS계 탄소나노섬유 펠트 1 |
PAN/TEOS계 탄소나노섬유 펠트2 |
PAN/TEOS계 탄소나노섬유 펠트3 |
||
BET비표면적 (㎡/g) |
1007.2 | 748.39 | 1408 | |
전체세공부피 (㎤/g) |
0.4763 | 0.3460 | 0.6833 | |
세공부피비 | micro | 84.9 | 80.6 | 83.7 |
meso | 15.1 | 19.4 | 16.3 | |
평균세공직경 (㎚) |
1.8916 | 1.8207 | 1.9412 | |
최종수율 % (방사섬유→최종처리후) |
16% | 28% | 18% |
특성 | 비표면적 (㎡/g) | 전기 전도도 (S/cm) |
전해질 | 셀저항 | 용량 F/g* (셀용량, F) |
상용화 제품 |
1219 | 1.38 | ionic liquid | 16Ω | 61.9 |
실시예 7 | > 800 | 2.54 (single fiber) | ionic liquid | 214.3 |
Claims (17)
- 한 방향으로 배향성을 갖도록 형성된 탄소나노섬유들을 포함하는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트.
- 제 1 항에 있어서,
상기 탄소나노섬유는 직경이 50 내지 400nm인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트.
- 제 1 항에 있어서,
밀도가 0.7407g/cm3 내지 2.0 g/cm3 인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트.
- 제 1 항에 있어서,
SiOx(0<x<2), 금속산화물, 금속알콕사이드, 그래핀, 탄소나노튜브, 흑연입자 또는 카본블랙입자 중 하나 이상을 더 포함하는 단일배향성 탄소나노섬유펠트.
- 제 1 항에 있어서,
전기전도도가 2.0 S/cm 이상인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트.
- 제 1 항에 있어서,
상기 탄소나노섬유에 형성된 세공의 크기는 0.5-3nm인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트.
- 탄소섬유전구체물질을 포함하는 방사용액을 준비하는 단계;
상기 방사용액을 고속 권취 전기 방사하여 한 방향으로 배향된 전구체섬유 펠트를 제조하는 단계;
상기 전구체섬유펠트를 산화안정화하여 내염화섬유펠트를 제조하는 단계; 및
상기 내염화섬유를 탄화시키는 단계;를 포함하는 단일배향성 탄소나노섬유 펠트 제조방법.
- 탄소섬유전구체물질을 포함하는 방사용액을 준비하는 단계;
상기 방사용액을 고속 권취 전기 방사하여 한 방향으로 배향된 전구체섬유 펠트를 제조하는 단계;
상기 전구체섬유펠트를 산화안정화하여 내염화섬유펠트를 제조하는 단계; 및
상기 내염화섬유를 활성화시키는 단계;를 포함하는 단일배향성 탄소나노섬유 펠트 제조방법. - 제 7 항 또는 제 8 항에 있어서,
상기 방사용액은 3000 cP 내지 28000cP의 점도를 갖는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 7 항 또는 제 8 항에 있어서,
상기 고속 권취 전기 방사는 방사구금과 콜렉터 간의 거리가 5 ~ 20 cm일 때 인가전압이 10 ~ 30 kV인 조건에서 전기 방사하면서 1000 ~ 2040 m/min의 속도로 권취하여 수행되는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 7 항 또는 제 8 항에 있어서,
상기 산화안정화는 상기 전구체섬유펠트에 1.5-4.0 MPa 의 하중을 주면서 수행되는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 7 항에 있어서,
상기 탄화는 불활성 분위기에서 분당 5 ℃의 승온 속도로 800 - 1500 ℃까지 승온한 후 1시간 유지하면서 수행되는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 8 항에 있어서,
상기 활성화는 불활성 분위기에서 분당 5 ℃의 승온 속도로 800 - 1500 ℃까지 승온한 후 1시간 동안 스팀 또는 CO2분위기에서 수행되는 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 7 항 또는 제 8 항에 있어서,
상기 탄소섬유전구체 물질은 폴리아크릴로나이트릴(PAN,polyacrylonitrile), 폴리아크릴로나이트릴 공중합체, 폴리비닐알콜(PVA, polyvinylachol), 폴리이미드(PI, polyimide), 폴리벤질이미다졸(PBI, polybenzimidazol), 페놀 수지(phenol resin), 에폭시 수지(epoxy resin), 폴리에칠렌(PE, polyethylene), 폴리프로필렌(PP, polypropylene), 폴리비닐클로라이드(PVC, polyvinylchloride), 폴리스타이렌(PS, polystyrene), 폴리아닐린(PA, polyanaline), 폴리메칠메타클레이트(PMMA, polymethylmethacrylate), 폴리비닐리덴클로라이드(PVDC, polyvinylidence chloride), 폴리비닐리덴 플루오라이드(PVDF, povinylidene fluoride) 및 각종 피치(pitch)로 구성된 그룹에서 선택되는 어느 하나인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 7 항 또는 제 8 항에 있어서,
상기 방사용액은 SiOx(0<x<2), 금속산화물, 금속알콕사이드, 그래핀, 탄소나노튜브, 흑연입자 또는 카본블랙입자 중 하나 이상을 더 포함하는 단일배향성 탄소나노섬유펠트 제조방법.
- 제 1 항 내지 제 6 항 중 어느 한 항의 단일배향성 탄소나노섬유펠트 또는 제 7 항 또는 제 8 항의 제조방법으로 제조된 단일배향성 탄소나노섬유펠트를 포함하는 단일배향성 탄소섬유펠트 응용제품.
- 제 16 항에 있어서,
상기 탄소섬유펠트 응용제품은 슈퍼 슈퍼캐패시터 또는 고강도탄소나노섬유 복합재료인 것을 특징으로 하는 단일배향성 탄소나노섬유펠트 응용제품.
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KR100995154B1 (ko) | 2010-02-11 | 2010-11-18 | 전남대학교산학협력단 | 다공성탄소나노섬유 제조방법, 상기 방법으로 제조된 다공성탄소나노섬유, 및 이를 포함하는 탄소나노섬유응용제품 |
KR101147923B1 (ko) * | 2010-06-29 | 2012-07-11 | 전남대학교산학협력단 | 금속옥사이드가 함유된 다공성탄소나노섬유 제조방법, 상기 방법으로 제조된 다공성 탄소나노섬유, 및 이를 포함하는 탄소나노섬유응용제품 |
KR101348202B1 (ko) * | 2011-11-30 | 2014-01-16 | 전남대학교산학협력단 | 금속산화물-탄소입자-탄소나노섬유복합체, 상기 복합체 제조방법, 및 상기 복합체를 포함하는 탄소섬유응용제품 |
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