JP4454364B2 - 炭素繊維の製造方法 - Google Patents
炭素繊維の製造方法 Download PDFInfo
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- JP4454364B2 JP4454364B2 JP2004102077A JP2004102077A JP4454364B2 JP 4454364 B2 JP4454364 B2 JP 4454364B2 JP 2004102077 A JP2004102077 A JP 2004102077A JP 2004102077 A JP2004102077 A JP 2004102077A JP 4454364 B2 JP4454364 B2 JP 4454364B2
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims description 37
- 239000004917 carbon fiber Substances 0.000 title claims description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title description 12
- 239000000835 fiber Substances 0.000 claims description 68
- 230000005484 gravity Effects 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 36
- 239000013585 weight reducing agent Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 14
- 238000002411 thermogravimetry Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000003763 carbonization Methods 0.000 description 29
- 229920002972 Acrylic fiber Polymers 0.000 description 8
- 239000002243 precursor Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 5
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- 238000007380 fibre production Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000007088 Archimedes method Methods 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001891 gel spinning Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
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Description
アルキメデス法により測定した。試料繊維はアセトン中にて脱気処理し測定した。
動的粘弾性測定装置を用い、具体的には、貯蔵弾性率(E’)に対する損失貯蔵弾性率(E”)の尺度を表す損失正接(tanδ)と、その温度とから温度−tanδグラフを得、そのグラフからtanδのピーク温度を読みとる。
重量減少開始温度は、(株)マックサイエンス製 TG−DTA 2000Sを用い、昇温速度20℃/分、25〜600℃の間、N2ガス50ml/分条件下で測定した。また、測定試料は耐炎化繊維 5.0mgを用いた。得られたチャートは、重量減少開始温度の少し手前から低い勾配で立上がり、徐々に勾配を高め、その後、勾配は徐々に低くなった。このチャートにおいて、立上がる前の平坦部と、立上がり部とに、それぞれ接線を引き、それら接線の交点から重量減少開始温度を求めた。
JIS R 7601に準拠した方法により測定した。
アクリロニトリル95質量%、アクリル酸メチル4質量%、及びイタコン酸1質量%の共重合体を含有する紡糸原液を湿式紡糸し、水洗・オイリング・乾燥・延伸(延伸倍率4.8倍)して繊維直径12.0μmのアクリル繊維を得た。
作製例8の耐炎化繊維について、第一炭素化工程領域における延伸率をそれぞれ1.02、1.11とした以外は、実施例3と同様の処理を行い、表2に示す繊維直径、ストランド強度の炭素繊維を得た。
Claims (1)
- 任意の耐炎化繊維の動的粘弾性測定より得られるtanδのピーク温度と、前記耐炎化繊維の比重との関係を示す比重−tanδピーク温度グラフにおける変曲点の比重以上の比重を有し、且つ、前記比重−tanδピーク温度グラフにおけるtanδピーク温度消失点の比重以下の比重を有する耐炎化繊維を、不活性ガス中、前記比重−tanδピーク温度グラフにおけるtanδピーク温度以上、前記耐炎化繊維の熱重量分析測定より得られる重量減少開始温度以下、且つ延伸率1.03〜1.10倍で熱延伸処理し、引き続き不活性ガス中、前記重量減少開始温度〜1600℃、且つ延伸率0.90〜0.96倍で熱処理する炭素繊維の製造方法。
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JP2004102077A JP4454364B2 (ja) | 2004-03-31 | 2004-03-31 | 炭素繊維の製造方法 |
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JP2004102077A JP4454364B2 (ja) | 2004-03-31 | 2004-03-31 | 炭素繊維の製造方法 |
Publications (2)
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JP2005281938A JP2005281938A (ja) | 2005-10-13 |
JP4454364B2 true JP4454364B2 (ja) | 2010-04-21 |
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JP2004102077A Expired - Lifetime JP4454364B2 (ja) | 2004-03-31 | 2004-03-31 | 炭素繊維の製造方法 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016105147A2 (ko) * | 2014-12-26 | 2016-06-30 | 오씨아이 주식회사 | 카본 펠트의 표면 처리 조건 추정 방법 |
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