한국섬유공학회지 (Textile Science and Engineering)

  • 제51권5호
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  • Pages.265-272
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  • 2014
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지
DOI QR코드

DOI QR Code

콜타르 기반 등방성 피치 섬유의 산화안정화 공정에 대한 오존 처리 영향

Influence of Ozone Treatment on Oxidative Stabilization Behavior of Coal-tar-based Isotropic Pitch Fibers

  • 투고 : 2014.09.01
  • 심사 : 2014.10.10
  • 발행 : 2014.10.31
⟨ 이전 논문 다음 논문 ⟩

초록

In this work, we performed ozone treatment of isotropic pitch fibers to optimize the duration and temperature during the stabilization process. The treatment worked effectively for long-term and high-temperature stabilization. The isotropic pitch fibers were ozone-treated at different ozone concentrations of 10, 20, and 30 mg/l. The surface properties of the isotropic pitch fibers were analyzed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy, while their structural characteristics were examined using X-ray diffraction. The experimental results indicated that the surface oxygen functional groups (COOH, OH, and CO) and oxygen concentration of the pitch fibers increased after the ozone treatment. During the oxidative stabilization process, the cross-linking reactions of the oxygen functional groups formed the thermosetting pitch, as confirmed by the replacement of hydrogen with oxygen. Additionally, it was observed that the ozone treatment could improve the optimized oxidative stabilization procedure in carbon fiber manufacturing. Therefore, the ozone treatment played an important role in optimizing the oxidative stabilization procedure of the pitch fibers.

키워드

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