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http://dx.doi.org/10.1016/j.jiec.2018.06.039

Preparation of isotropic pitch precursor for pitch-based carbon fiber through the co-carbonization of ethylene bottom oil and polyvinyl chloride  

Liu, Jinchang (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University)
Shimanoe, Hiroki (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University)
Nakabayashi, Koji (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University)
Miyawaki, Jin (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University)
Ko, Seunghyun (Center for C-Industry Incubation, Korea Research Institute of Chemical Technology (KRICT))
Jeon, Young-Pyo (Center for C-Industry Incubation, Korea Research Institute of Chemical Technology (KRICT))
Yoon, Seong-Ho (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University)
Publication Information
Journal of Industrial and Engineering Chemistry / v.67, no., 2018 , pp. 276-283 More about this Journal
Abstract
For the first time, polyvinyl chloride (PVC) was used as an easily-handled chlorine source for preparation of isotropic pitch-based carbon fiber (IPCF) incorporating ethylene bottom oil (EO) as a raw material. Pitch precursors were prepared by the chlorination-dehydrochlorination triggered by chlorine radicals originated from PVC; aromatization and poly-condensation reactions occurred by polyene-type radicals from PVC. Radical production and co-carbonization were facilitated by pretreatments of EO through vacuum distillation, bromination, and additional heat treatment. Pitches were prepared by the co-carbonization of pretreated EO and EO containing 20 wt% PVC, and had higher yields and better spinnability than those by simple distillation.
Keywords
Isotropic pitch precursor; Ethylene bottom oil; Polyvinyl chloride (PVC); Co-carbonization; Chlorination-dehydrochlorination;
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