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Manufacture of carbon fibers from polyacrylonitrile precursors treated with CoSO4
- Source :
- Journal of Applied Polymer Science. 85:153-158
- Publication Year :
- 2002
- Publisher :
- Wiley, 2002.
-
Abstract
- Free-radical solution copolymerization of itaconic acid and acrylonitrile was carried out in DMSO using azodiisobutyronitrile as an initiator, changing the feed rate of itaconic acid. The resulting polymerization solution was spun to form polyacrylonitrile (PAN) precursors of carbon fibers. The precursors were treated with a CoSO 4 aqueous solution on-line. The structure and properties of untreated and treated PAN precursors and the resultant carbon fibers were characterized by SEM and TEM, a stabilization process, etc. It is suggested that CoSO 4 acts as a catalyst in the formation of a ladder structure and reduces the temperature of cyclization, and the carbon fibers developed from treated PAN fibers showed improvement in the tensile strength and the Young's modulus.
- Subjects :
- Materials science
Aqueous solution
Polymers and Plastics
Carbonization
Polyacrylonitrile
General Chemistry
Surfaces, Coatings and Films
chemistry.chemical_compound
Synthetic fiber
chemistry
Polymerization
Chemical engineering
Polymer chemistry
Materials Chemistry
Copolymer
Itaconic acid
Acrylonitrile
Subjects
Details
- ISSN :
- 10974628 and 00218995
- Volume :
- 85
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Polymer Science
- Accession number :
- edsair.doi...........5969ee4cf0ee0570689d159412834018