김지훈 정용식 이성호 구본철 2024-01-20T16:32:47Z 2024-01-20T16:32:47Z 2021-09-06 2011-08 1225-1089 https://pubs.kist.re.kr/handle/201004/130105 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. Korean 한국섬유공학회 PAN과 PVA의 상분리 현상을 이용한 탄소나노섬유 제조 및 특성 Preparation and Characteristics of Carbon Nanofibers Using Phase Separation between PAN and PVA Article 2 한국섬유공학회지, v.48, no.4, pp.226 - 231 한국섬유공학회지 48 4 226 231 kci ART001585645 PAN PVA carbon nano fibers wet-spinning phase separation