JPS57149515A - Sizing agent for carbon fiber - Google Patents
Sizing agent for carbon fiberInfo
- Publication number
- JPS57149515A JPS57149515A JP3113381A JP3113381A JPS57149515A JP S57149515 A JPS57149515 A JP S57149515A JP 3113381 A JP3113381 A JP 3113381A JP 3113381 A JP3113381 A JP 3113381A JP S57149515 A JPS57149515 A JP S57149515A
- Authority
- JP
- Japan
- Prior art keywords
- caprolactam
- sizing agent
- dimethylamino
- carbon fiber
- modified polyamide
- 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.)
- Granted
Links
Landscapes
- Polyamides (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
PURPOSE: The titled sizing agent that is composed of modified polyamide obtained by polymerization of α-(N,N-dimethylamino)-ε-caprolactam, thus showing good adhesion to matrix, handleability in processing and fluffing prevention.
CONSTITUTION: α-(N,N-dimethylamino)-ε-caprolactam alone or a mixture of 30W 100wt%, preferably 40W100% α-(N,N-dimethylamino)-ε-caprolactam with at least one of cyclic amides of the formula (n is 3W11; R is alkyl) such as ε-caprolactam is polymerized by heating in the presence of 1W5wt%, based on the monomer, of a catalyst such as sodium amide and a cocatalyst such as N-acetyl- ε-caprolactam in an inert gas atmosphere. The resultant modified polyamide is dissolved in an acidic aqoeuos solution, preferably in 0.5W30% concentration to give the objective sizing agent.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3113381A JPS6036510B2 (en) | 1981-03-06 | 1981-03-06 | Sizing agent for carbon fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3113381A JPS6036510B2 (en) | 1981-03-06 | 1981-03-06 | Sizing agent for carbon fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57149515A true JPS57149515A (en) | 1982-09-16 |
JPS6036510B2 JPS6036510B2 (en) | 1985-08-21 |
Family
ID=12322923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3113381A Expired JPS6036510B2 (en) | 1981-03-06 | 1981-03-06 | Sizing agent for carbon fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6036510B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016194175A (en) * | 2015-04-01 | 2016-11-17 | トヨタ自動車株式会社 | Resin-coated carbon fiber and carbon fiber reinforced composite material of the same |
CN109898330A (en) * | 2018-10-18 | 2019-06-18 | 天津工业大学 | A kind of preparation method of the aqueous sizing agent of modified polycaprolactam carbon fiber |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62121833A (en) * | 1985-11-20 | 1987-06-03 | Sanshin Ind Co Ltd | Engine abnormality warning device |
-
1981
- 1981-03-06 JP JP3113381A patent/JPS6036510B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016194175A (en) * | 2015-04-01 | 2016-11-17 | トヨタ自動車株式会社 | Resin-coated carbon fiber and carbon fiber reinforced composite material of the same |
CN109898330A (en) * | 2018-10-18 | 2019-06-18 | 天津工业大学 | A kind of preparation method of the aqueous sizing agent of modified polycaprolactam carbon fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS6036510B2 (en) | 1985-08-21 |
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