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제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis of Mesophase Pitch Based Carbon Fibers from Fluidized Catalytic Cracking Decant Oils

등록일
2013년 8월 28일 10시 33분 32초
접수번호
0455
발표코드
IND.P-73 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
공업화학
저자 및
공동저자
이동훈, 양갑승1,*
전남대학교 고분자공학과, Korea
1전남대학교 고분자 섬유 시스템공학과, Korea
Pitch precursors for carbon fibers were synthesized from fluidized catalytic cracking-decant oils (FCC-DO). The low molecular weight fraction of FCC-DO was separated using the vacuum pump during 240 minutes at 150℃. After separation, they which were called VR were pressurized-heat treated with tetrahydronaphthalene (THN) at 300℃, and then synthesized mesophase pitches from them which were called VR-THN. The pressurized-heat treatment with THN reduced the viscosity of VR from 292.5 to 30.1 cP at 25℃ and the elemental analysis of C/H mol% of 0.99 of VR to 0.94 of VR-THN. Optical texture of synthesized pitch were observed using polarized microscopy. During the further heat treatment at 380℃, anisotropic spheres combined in a large domain. The synthesized pitches showed about 15% yield and the softening point was about 290℃. The synthesized pitch was melt-spun through a circular nozzle by pressurized nitrogen gas, stabilized at 300℃, carbonized at 800℃ and finally graphitized at 2800℃. The graphitized fiber exhibited anisotropic morphological structures in cross section of the fibers.

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