한국섬유공학회지 (Textile Science and Engineering)

  • 제57권3호
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  • Pages.133-142
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  • 2020
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지
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탄소재료 전구체로 사용가능한 헤테로 고리방향족 고분자의 탄화거동에 대한 열처리 온도의 영향

Effect of Heat-Treatment on Carbonization Behavior of Hetero-cyclic Aromatic Polymers for Carbon Material Precursors

  • 강찬솔 (신한대학교 섬유소재공학과)
  • Kang, Chan Sol (Department of Textile Materials Engineering, Shinhan University)
  • 투고 : 2020.04.28
  • 심사 : 2020.05.21
  • 발행 : 2020.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, carbonized polyhydroxyamide (C-PHA) and polybenzoxazole (C-PBO) precursors were prepared from PHA and PBO polymers, respectively, through heattreatment of 600-1200 ℃ for 1 h under nitrogen atmosphere. Fourier-transform infrared spectroscopy (FT-IR), elemental analysis (EA), X-ray photoelectron spectroscopy (XPS), thermographic and mass spectrometry, wide-angle X-ray diffraction, Raman spectroscopy, transmission electron microscopy, and electrical conductivity test were performed to monitor the changes in the chemical structures of the two precursors. From FT-IR, EA, and XPS results, PHA and PBO polymers were directly converted to C-PHA and C-PBO precursors, respectively, above 800 ℃ without undergoing the oxidative stabilization process. The maximum carbonization yield of the carbonized precursors was 1.36 times (68.3%) higher than that of the commercialized PAN-based carbon fiber (50%). High-resolution transmission electron microscopy images revealed a small amount (~30%) of turbostratic graphite structure around an external area in the C-PBO precursor at 1000 ℃.

키워드

과제정보

본 논문은 2020년도 신한대학교 학술연구비 지원으로 연구되었으며, 당 기관의 연구비 지원에 감사드립니다.

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