한국섬유공학회지 (Textile Science and Engineering)

  • 제61권3호
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  • Pages.91-98
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  • 2024
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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초고온 흑연화 처리 및 전구체 섬유 방사 연신비에 따른 PAN계 탄소섬유의 특성 분석

Characterization of PAN-based Carbon Fibers Based on Ultra-high Termperature Graphitization Treatment and Spinning Elongation Ratio of Precursor Fiber

  • 조현재 (전북대학교 유기소재섬유공학과) ;
  • 유승민 (전북대학교 유기소재섬유공학과) ;
  • 정동철 (전북대학교 유기소재섬유공학과) ;
  • 고태훈 (전북대학교 나노융합공학과) ;
  • 김학용 (전북대학교 유기소재섬유공학과) ;
  • 정용식 (전북대학교 유기소재섬유공학과) ;
  • 김병석 (전북대학교 유기소재섬유공학과)
  • Hyun-Jae Cho (Department of Organic Materials and Textile Engineering, Jeonbuk National University) ;
  • Seungmin Yu (Department of Organic Materials and Textile Engineering, Jeonbuk National University) ;
  • Dong-Chul Chung (Department of Organic Materials and Textile Engineering, Jeonbuk National University) ;
  • Tae-Hoon Ko (Department of Nano Convergence Engineering, Jeonbuk National University) ;
  • Hak-Yong Kim (Department of Organic Materials and Textile Engineering, Jeonbuk National University) ;
  • Yong-Sik Chung (Department of Organic Materials and Textile Engineering, Jeonbuk National University) ;
  • Byoung-Suhk Kim (Department of Organic Materials and Textile Engineering, Jeonbuk National University)
  • 투고 : 2024.05.16
  • 심사 : 2024.05.24
  • 발행 : 2024.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the effects of ultra-high temperature graphitization and spinning elongation ratio were studied on the crystalline structure and mechanical properties of the PANbased carbon fibers. Three types of PAN (polyacrylonitrile)-based carbon fibers from Toray (T300, M40, and M46) were subjected to ultra-high temperature treatment at 2,800 ℃, and then the crystal structure and strength/modulus of the graphitized carbon fibers (graphite fibers) were analyzed. Crystal size and orientation factor were investigated using 2D X-ray Diffraction. Single-fiber tensile tests were conducted using a linear Density and Tensile Tester (FAVIMAT+) to measure mechanical properties (strength and modulus). In addition, the synthesized PAN copolymer was dissolved in a DMSO solvent to prepare a spinning dope (~23%), and PAN precursor fibers were prepared under different elongation ratio through wet spinning. The result confirmed that the crystalline size (Lc) was increased by ultra-high temperature treatment and higher spinning elongation ratio and also thus mechanical properties was improved.

키워드

과제정보

이 논문은 2022년 정부(방위사업청)의 재원으로 국방기술진흥연구소의 지원을 받아 수행된 연구임(No. KRIT-CT-22-025, 초고탄성 탄소섬유 특화연구실).

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