JP2010229587A - 着色炭素繊維 - Google Patents
着色炭素繊維 Download PDFInfo
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Abstract
【解決手段】入射角60度、受光角45度で可視領域の反射スペクトルを用いて測定されるL*a*b*表色系における明度(L*)が20以上である着色された炭素繊維である。その中でも、L*a*b*表色系における彩度(ΔC*ab)が2以上であるものが好ましい。更に、L*a*b*表色系における色差(ΔE*ab)が20以上であるものがより好ましい。
【選択図】なし
Description
この際、例えば、基材の炭素繊維由来の織目などの独特の模様は、優れた意匠性を発揮し、炭素繊維複合材料の特徴の一つとなっている。
a*b*は、色立体において三次元の座標軸を示すものであり、L*は明度を表し、L*=0がもっとも暗く(黒色)、L*=100がもっとも明るい状態(白色)を表現している。a*b*に関しては、tanθ(b*/a*)が色相を表し、それぞれ+と−の領域を持っている。即ち、原点0に垂直方向にL*軸が立っており、あるL*の値で縦軸と横軸にa*とb*が直交しており、a*が+なら赤、−なら補色の緑、b*が+なら黄色、そして−なら補色の青色を示す。そして、色々なa*b*の値の組み合わせで、中間的な色の表現がなされる。
アクリロニトリル95質量%/アクリル酸メチル4質量%/イタコン酸1質量%よりなる共重合体紡糸原液を、常法により湿式紡糸し、前駆体繊維を得た。得られた前駆体繊維を加熱空気中で延伸しながら、240〜250℃の温度範囲内で耐炎化処理を行い、次いで窒素雰囲気中、350〜2000℃の温度範囲内で第一及び第二炭素化処理を行った。その後、電解質溶液として10質量%の硫酸アンモニウム水溶液を用い、電気量が30クーロン/gの条件で電解処理し、炭素繊維を得た。
実施例1で得られた炭素繊維に、実施例1と同様のサイジング処理を再度行い、その後乾燥してサイズ剤の付着量2.0重量%(顔料の付着量0.40重量%)の本発明の着色炭素繊維を得た。得られた炭素繊維の彩度、色度、樹脂含浸ストランド強度と弾性率の測定値は表1に示した。
実施例1で得られたサイジング処理前の炭素繊維に、サイジング剤に顔料を添加しなかった他は実施例1と同様の方法でサイジング処理を行い、比較用の炭素繊維を得た。得られた炭素繊維の明度、彩度、色度の測定値は表1に示した。
実施例1で得られた前記電解処理前の炭素繊維を、6.3質量%の硝酸水溶液を用い、電気量が1000クーロン/gの条件で電解処理し、比較例1と同様にサイジング処理を行い、乾燥して炭素繊維を得た。得られた炭素繊維の明度、彩度、色度の測定値は表1に示した。
Claims (5)
- 入射角60度、受光角45度で可視領域の反射スペクトルを用いて測定されるL*a*b*表色系における明度(L*)が20以上である炭素繊維。
- 入射角60度、受光角45度で可視領域の反射スペクトルを用いて測定されるL*a*b*表色系における彩度(ΔC*ab)が2以上である請求項1記載の炭素繊維。
- 入射角60度、受光角45度で可視領域の反射スペクトルを用いて測定されるL*a*b*表色系における色差(ΔE*ab)が20以上である請求項1又は2記載の炭素繊維。
- 炭素繊維をサイジング処理するに際し、染料又は顔料を含むサイズ剤を用いることを特徴とする炭素繊維の着色方法。
- 請求項1〜3のいずれか1項記載の炭素繊維と、マトリックス樹脂とから得られた繊維強化複合材料。
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JP2009078352A JP2010229587A (ja) | 2009-03-27 | 2009-03-27 | 着色炭素繊維 |
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JP2009078352A JP2010229587A (ja) | 2009-03-27 | 2009-03-27 | 着色炭素繊維 |
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JP2010229587A true JP2010229587A (ja) | 2010-10-14 |
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JP2009078352A Withdrawn JP2010229587A (ja) | 2009-03-27 | 2009-03-27 | 着色炭素繊維 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012136818A (ja) * | 2011-12-21 | 2012-07-19 | Masayuki Kawada | 炭素繊維の電気化学的着色処理方法およびその装置ならびに炭素繊維 |
WO2019131728A1 (ja) | 2017-12-28 | 2019-07-04 | 積水化学工業株式会社 | 積層シート |
WO2019163863A1 (ja) | 2018-02-22 | 2019-08-29 | 積水化学工業株式会社 | 積層シート |
WO2019230798A1 (ja) | 2018-05-30 | 2019-12-05 | 積水化学工業株式会社 | 積層シート |
KR20200039663A (ko) | 2017-08-09 | 2020-04-16 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트, 코팅 섬유, 코팅 섬유 다발 및 섬유 강화 플라스틱 |
KR20210126586A (ko) | 2019-02-13 | 2021-10-20 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트 |
-
2009
- 2009-03-27 JP JP2009078352A patent/JP2010229587A/ja not_active Withdrawn
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012136818A (ja) * | 2011-12-21 | 2012-07-19 | Masayuki Kawada | 炭素繊維の電気化学的着色処理方法およびその装置ならびに炭素繊維 |
KR20200039663A (ko) | 2017-08-09 | 2020-04-16 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트, 코팅 섬유, 코팅 섬유 다발 및 섬유 강화 플라스틱 |
WO2019131728A1 (ja) | 2017-12-28 | 2019-07-04 | 積水化学工業株式会社 | 積層シート |
WO2019163863A1 (ja) | 2018-02-22 | 2019-08-29 | 積水化学工業株式会社 | 積層シート |
KR20200125600A (ko) | 2018-02-22 | 2020-11-04 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트 |
US11613102B2 (en) | 2018-02-22 | 2023-03-28 | Sekisui Chemical Co., Ltd. | Laminate sheet |
WO2019230798A1 (ja) | 2018-05-30 | 2019-12-05 | 積水化学工業株式会社 | 積層シート |
KR20210016334A (ko) | 2018-05-30 | 2021-02-15 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트 |
KR20210126586A (ko) | 2019-02-13 | 2021-10-20 | 세키스이가가쿠 고교가부시키가이샤 | 적층 시트 |
JPWO2020166620A1 (ja) * | 2019-02-13 | 2021-12-09 | 積水化学工業株式会社 | 積層シート |
JP7291128B2 (ja) | 2019-02-13 | 2023-06-14 | 積水化学工業株式会社 | 積層シート |
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