Preparation of characteristics of carbon nanofibers using phase separation between PAN and PVA

Title
Preparation of characteristics of carbon nanofibers using phase separation between PAN and PVA
Authors
김지훈이성호구본철정용식
Keywords
탄소섬유; PAN; PVA; carbon nano fibers; wet-spinning; phase separation
Issue Date
2011-08
Publisher
한국섬유공학회지
Citation
VOL 48, NO 4, 226-231
Abstract
Polyacrylonitrile-based, submicron, sea-island, carbon fibers were prepared with polyacrylonitrile (PAN) islands in a polyvinly alcohol (PVA) sea. Mixtures of PAN and PVA were wet-spun and characterized. DSC thermograms showed phase-separated PVA and PAN, indicating the resultin fibers' sea-island structures. SEM images showed PAN fibers of 250~400 nm diameter remaining after removal of PVA by immersion in boiling water. The PAN fibers were stabilized and carbonized, their diameter decreased to 100~200 nm depending on the mixing ratio of PAN to PVA. XRD showed typical turbostratic structures of the carbon fibers.
URI
http://pubs.kist.re.kr/handle/201004/40961
ISSN
1225-1089
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KIST Publication > Article
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