JP2008169492A - 炭素化布帛の製造方法およびこれにより得られた炭素化布帛 - Google Patents
炭素化布帛の製造方法およびこれにより得られた炭素化布帛 Download PDFInfo
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- JP2008169492A JP2008169492A JP2007001701A JP2007001701A JP2008169492A JP 2008169492 A JP2008169492 A JP 2008169492A JP 2007001701 A JP2007001701 A JP 2007001701A JP 2007001701 A JP2007001701 A JP 2007001701A JP 2008169492 A JP2008169492 A JP 2008169492A
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Classifications
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- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
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- 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
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- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
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- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
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- D03D15/208—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 cellulose-based
- D03D15/217—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 cellulose-based natural from plants, e.g. cotton
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
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Abstract
【解決手段】セルロース系繊維の糸からなる織布、編布または織編布を原料繊維布帛とし、これを加熱炭素化して炭素化繊維布帛を製造する方法であって、含水率25%未満の乾燥状態の原料繊維布帛を、当該布帛の縦あるいは横のいずれか一方向から拘束して保持し、そのまま、加熱炉内において、酸素分圧50mmHg以上の酸化性雰囲気下において、250〜450℃の温度領域まで50〜200℃/時間にて昇温し、その後、酸素分圧50mmHg未満の非酸化性雰囲気として750〜1000℃の最終加熱温度領域まで50〜200℃/時間の昇温速度にて、連続して昇温し、最終加熱温度にて所定時間保持する加熱に付することを特徴とする炭素化布帛の製造方法である。
【選択図】図1
Description
厚さは、マイクロメーターにより測定した。
JIS L 1018 カットスリップ法に準拠して測定した。なお、測定条件としては、引張速度20cm/分、つかみ間隔20cm、試料幅5cm、試験機:定速伸張形とした。
JIS L1018 A法(45°カンチレバー法)に準拠して、カンチレバーソフトネステスター(型式:CAN-45)により測定した。
得られた試験片を、四探針式低抵抗率計(ロレスタGP、三菱化学製)を用いて表面9箇所の抵抗(Ω)を測定し、同抵抗計により体積抵抗率(Ω・cm)に換算し、平均値を算出した。
堀場ジョバンイボン製LabRam800を用い、アルゴンレーザーの514nmの波長を用いて測定した。
マックサイエンス製TG−DTAを用い、空気を0.1リットル/分の流速で流通させながら、10℃/分の速度で昇温し、燃焼挙動を測定した。燃焼時にTGは減量を示し、DTAは発熱ピークを示すので、発熱ピークのトップ位置を燃焼開始温度と定義した。
KEC法(社団法人関西電子工業振興センターにて開発)により100MHz〜1000MHzの周波数における電磁波シールド効果を測定した(試験室の温湿度:20℃、40%RH)。測定は電磁波の発信部と受信部を10mm離間させるとともに、その間に測定試料(30mm×30mm)を介在させた状態で、発信部から受信部に向け電磁波を照射し、測定試料により入射エネルギーがどれだけ遮蔽されるかにつき、電界シールド、磁界シールドの両面において測定することとした。
以下の条件により炭素化繊維布帛を調製した。
加熱条件:室温(15℃±20℃)〜900℃ 昇温速度 100℃/時間
総合加熱保持時間 15時間
冷却: 自然冷却
なお、加熱開始直後は酸素分圧約150mmHg程度であった酸化性の雰囲気は、約270℃〜300℃程度の温度域において、繊維の熱分解により発生する出ガスの影響により、酸素分圧50mmHg未満の非酸化性の雰囲気となり、それ以降はこの非酸化性雰囲気が加熱終了時まで維持された。
得られた炭素化繊維布帛の表面性状を電子顕微鏡を用いて観察した。得られた結果を図1A(倍率50倍)、図1B(倍率3000倍)、図1C(倍率10000倍)に示す。
体積固有抵抗: 0.77Ωcm
引張強度: ウェール方向3.81N、コース方向2.02N
カンチレバーソフトネステスターにより測定される剛軟度: ウェール方向27mm、コース方向18mm
厚さ:4mm
単位面積当りの質量:61.2g/m2
空気中での燃焼開始温度:631℃
D/G比:1.2
なお、図2に、空気中での燃焼開始温度を求めたTG−DTAチャート、図3に、D/G比を求めたラマンスペクトルチャートを示す。
Claims (7)
- セルロース系繊維の糸からなる織布、編布または織編布を原料繊維布帛とし、これを加熱炭素化して炭素化繊維布帛を製造する方法であって、
含水率25%未満の乾燥状態の原料繊維布帛を、当該布帛の縦あるいは横のいずれか一方向から拘束して保持し、そのまま、加熱炉内において、酸素分圧50mmHg以上の酸化性雰囲気下において、250〜450℃の温度領域まで50〜200℃/時間にて昇温し、その後、酸素分圧50mmHg未満の非酸化性雰囲気として750〜1000℃の最終加熱温度領域まで50〜200℃/時間の昇温速度にて、連続して昇温し、最終加熱温度にて所定時間保持する加熱に付することを特徴とする炭素化布帛の製造方法。 - 加熱開始から最終温度での加熱終了までの総合加熱保持時間が10〜50時間であることを特徴とする請求項1に記載の炭素化布帛の製造方法。
- 250〜1000℃の温度領域においては、前記拘束方向において布帛に収縮による張力が加わることを特徴とする請求項1または2に記載の炭素化布帛の製造方法。
- 酸化性雰囲気から非酸化性雰囲気への置換は、加熱された原料繊維布帛の熱分解により発生する出ガスを利用して、原料繊維布帛の囲繞雰囲気より酸素含有ガスを追放することによって行われるものである請求項1〜3のいずれか1つに記載の炭素化布帛の製造方法。
- 原料繊維布帛は、加熱炉内において積層された状態で配置されているものである請求項請求項1〜4のいずれか1つに記載の炭素化布帛の製造方法。
- 請求項1〜5のいずれか1つに記載の製造方法により得られたことを特徴とする炭素化布帛。
- 前記炭素化布帛は、面方向において体積固有抵抗0.6〜1.5Ωcm、カンチレバーソフトネステスターにより測定される炭素化布帛の剛軟度と原料繊維布帛の剛軟度との比(炭素化布帛の剛軟度/原料繊維布帛の剛軟度)が1.2〜0.8であることを特徴とする請求項6に記載の炭素化布帛。
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JP2010163709A (ja) * | 2009-01-14 | 2010-07-29 | Maeda Toshikatsu | 炭素化布帛の製造方法及び炭素化布帛 |
WO2015033481A1 (ja) * | 2013-09-05 | 2015-03-12 | Kani Dou | 炭化布製造方法 |
KR101565132B1 (ko) | 2015-03-26 | 2015-11-02 | 주식회사 시나프 | 탄화 면직물의 제조공정 |
CN111801449A (zh) * | 2018-03-09 | 2020-10-20 | 商先创国际股份有限公司 | 用于稳定制造碳纤维的前驱物纤维的方法以及装置 |
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JP2010163709A (ja) * | 2009-01-14 | 2010-07-29 | Maeda Toshikatsu | 炭素化布帛の製造方法及び炭素化布帛 |
WO2015033481A1 (ja) * | 2013-09-05 | 2015-03-12 | Kani Dou | 炭化布製造方法 |
JP2015052175A (ja) * | 2013-09-05 | 2015-03-19 | 道宇 可児 | 炭化布製造方法 |
KR101565132B1 (ko) | 2015-03-26 | 2015-11-02 | 주식회사 시나프 | 탄화 면직물의 제조공정 |
CN111801449A (zh) * | 2018-03-09 | 2020-10-20 | 商先创国际股份有限公司 | 用于稳定制造碳纤维的前驱物纤维的方法以及装置 |
JP2021516296A (ja) * | 2018-03-09 | 2021-07-01 | セントロターム インターナチオナル アーゲー | 炭素繊維の製造のための前駆体繊維の安定化のための方法および装置 |
JP7390319B2 (ja) | 2018-03-09 | 2023-12-01 | セントロターム インターナチオナル アーゲー | 炭素繊維の製造のための前駆体繊維の安定化のための方法および装置 |
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