http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020015997-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-18 |
| filingDate | 2018-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54b3d1aa87e4befe006c2608e823d15c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d8830cdaf453a6c1fffcfc78cdad1c0 |
| publicationDate | 2020-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020015997-A |
| titleOfInvention | Method for producing precursor fiber for carbon fiber |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing a precursor fiber for carbon fiber, which can suppress the occurrence of fusion between single yarns and produce high-quality carbon fiber. SOLUTION: This is a method for producing a carbon fiber precursor fiber comprising a polyacrylonitrile-based copolymer, wherein the concentration of the acrylonitrile monomer in the spinning dope is reduced to less than 10 ppm, and then the pH of the spinning dope is 7.2 to 7.2. A method for producing a carbon fiber precursor fiber which is adjusted to 10.0 and spun using the spinning solution. Further, that the polyacrylonitrile copolymer is a copolymer of a carboxyl group-containing vinyl compound, that the polyacrylonitrile copolymer is obtained by aqueous suspension polymerization, It is preferable to contain 10 ppm or more. Furthermore, ammonia is used for adjusting the pH of the spinning solution, that the spinning method is wet or dry-wet, the fiber after spinning is dried with a roller at 150 ° C. or higher, and the fiber after spinning is steam-drawn. Is preferred. Further, the present invention includes a method for producing carbon fiber, which comprises subjecting a carbon fiber precursor fiber obtained by the above method to a flame treatment and a carbonization treatment. [Selection diagram] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022165903-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020509251-A |
| priorityDate | 2018-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.