지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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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.
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참고문헌 (27)
참고문헌 신청
M. K. Seo / 2010 / Manufacturing Method of Carbon Fibers and Their Application Fields / Polym Sci Technol 21:130~140
서민강 / 2009 / Carbon Fibers(III): Recent Technical and Patent Trends / Carbon Letters 10(1):43~51
H. A. El Akrami / 2000 / Preparation and Characterization of Raman-Dincer Crude Oil Derived Piches for Production of Stabilized Fibers / Fuel 79:497~504
Jae Young Lee / 2009 / Relationship Between Exothermic Heat and Carbon Contents of Pitch-based Carbon Fiber / Carbon Letters 10(3):202~207
Jae-Seung Roh / 2008 / Oxidation Kinetics of Pitch Based Carbon Fibers / Carbon Letters 9(2):121~126
서민강 / 2009 / Carbon Fibers(III): Recent Technical and Patent Trends / Carbon Letters 10(1):43~51
H. A. El Akrami / 2000 / Preparation and Characterization of Raman-Dincer Crude Oil Derived Piches for Production of Stabilized Fibers / Fuel 79:497~504
Jae Young Lee / 2009 / Relationship Between Exothermic Heat and Carbon Contents of Pitch-based Carbon Fiber / Carbon Letters 10(3):202~207
Jae-Seung Roh / 2008 / Oxidation Kinetics of Pitch Based Carbon Fibers / Carbon Letters 9(2):121~126
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