JPS6452811A - Production of high-tenacity acrylic fiber - Google Patents
Production of high-tenacity acrylic fiberInfo
- Publication number
- JPS6452811A JPS6452811A JP18541087A JP18541087A JPS6452811A JP S6452811 A JPS6452811 A JP S6452811A JP 18541087 A JP18541087 A JP 18541087A JP 18541087 A JP18541087 A JP 18541087A JP S6452811 A JPS6452811 A JP S6452811A
- Authority
- JP
- Japan
- Prior art keywords
- spinning
- fiber
- afford
- acrylonitrile
- based polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To obtain the titled fiber of high orientation, useful as a precursor for producing high-performance carbon fibers, etc., and having excellent mechanical strength, by spinning a high-molecular weight acrylonitrile based polymer by a specific method and drawing the resultant fiber at a high draw ratio. CONSTITUTION:An acrylonitrile based polymer, containing >=80wt.% acrylonitrile and having >=500,000 weight-average molecular weight is initially dissolved in a spinning solvent consisting essentially of DMF or dimethylacetamide so as to provide 5-15wt.% concentration and afford a spinning solution having 500-1,500cP viscosity at 45 deg.C. The resultant spinning solution is then spun by a dry jet-wet spinning method and then coagulated in a coagulation bath at <=0 deg.C. The obtained coagulated yarn is subsequently drawn at >=10 times to afford the aimed fiber having >=95% X-ray orientation degree and <=0.8 X-ray crystallinity parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18541087A JPS6452811A (en) | 1986-07-28 | 1987-07-27 | Production of high-tenacity acrylic fiber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17549286 | 1986-07-28 | ||
| JP18541087A JPS6452811A (en) | 1986-07-28 | 1987-07-27 | Production of high-tenacity acrylic fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6452811A true JPS6452811A (en) | 1989-02-28 |
Family
ID=26496743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18541087A Pending JPS6452811A (en) | 1986-07-28 | 1987-07-27 | Production of high-tenacity acrylic fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6452811A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121590A (en) * | 2006-11-14 | 2008-05-29 | Wako Filter Technology Kk | Filter |
| JP2012522142A (en) * | 2009-03-31 | 2012-09-20 | ドンファ ユニバーシティー | Carbon fiber, its yarn, and preoxidized fiber manufacturing method |
| CN103132162A (en) * | 2011-11-22 | 2013-06-05 | 现代自动车株式会社 | Method for preparing carbon fiber precursor |
| CN104894674A (en) * | 2015-06-18 | 2015-09-09 | 国网智能电网研究院 | Method for improving crystallinity of polyacrylonitrile nascent fibers |
| JP2016145441A (en) * | 2015-02-04 | 2016-08-12 | 三菱レイヨン株式会社 | High performance fiber and method for producing the same |
| CN110062773A (en) * | 2017-09-29 | 2019-07-26 | 株式会社Lg化学 | It is used to prepare the preparation method of (methyl) acrylonitrile polymers of carbon fiber |
-
1987
- 1987-07-27 JP JP18541087A patent/JPS6452811A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121590A (en) * | 2006-11-14 | 2008-05-29 | Wako Filter Technology Kk | Filter |
| JP2012522142A (en) * | 2009-03-31 | 2012-09-20 | ドンファ ユニバーシティー | Carbon fiber, its yarn, and preoxidized fiber manufacturing method |
| JP2013256749A (en) * | 2009-03-31 | 2013-12-26 | Donghua Univ | Method for producing carbon fiber, precursor fiber thereof, and pre-oxidized fiber |
| CN103132162A (en) * | 2011-11-22 | 2013-06-05 | 现代自动车株式会社 | Method for preparing carbon fiber precursor |
| JP2016145441A (en) * | 2015-02-04 | 2016-08-12 | 三菱レイヨン株式会社 | High performance fiber and method for producing the same |
| JP2021105244A (en) * | 2015-02-04 | 2021-07-26 | 三菱ケミカル株式会社 | High-performance fiber and dope used in manufacturing of the fiber |
| CN104894674A (en) * | 2015-06-18 | 2015-09-09 | 国网智能电网研究院 | Method for improving crystallinity of polyacrylonitrile nascent fibers |
| CN110062773A (en) * | 2017-09-29 | 2019-07-26 | 株式会社Lg化学 | It is used to prepare the preparation method of (methyl) acrylonitrile polymers of carbon fiber |
| CN110062773B (en) * | 2017-09-29 | 2021-05-25 | 株式会社Lg化学 | Method for producing (meth) acrylonitrile polymer for producing carbon fiber |
| US11046792B2 (en) | 2017-09-29 | 2021-06-29 | Lg Chem, Ltd. | Method of preparing (meth)acrylonitrile-based polymer for preparing carbon fiber |
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