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Improving Spinnability of Hyper-Coal Derived Spinnable Pitch through the Hydrogenation with 1,2,3,4-Tetrahydroquinoline

1
College of Materials Science and Engineering, Hunan University, Changsha 410082, China
2
Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China
3
Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga 8168580, Fukuoka, Japan
*
Author to whom correspondence should be addressed.
Received: 20 July 2018 / Revised: 16 August 2018 / Accepted: 16 August 2018 / Published: 19 August 2018
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Abstract

The proper hydrogenation of Hyper-coal (HPC) using 1,2,3,4-tetrahydroquinoline (THQ) was able to decrease the oxygen content and adjust the molecular structure of HPC for preparing the spinnable pitch with high softening point (SP). The spinnable pitch prepared from the THQ-soluble (QS) fraction of HPC as a precursor consisted of more naphthenic carbon groups than that prepared from the 1-methylnaphthalene (1-MN) soluble (MNS) fraction of HPC. The HPC-QS derived spinnable pitch showed excellent spinning performance even though the SP of 260 °C, and the tensile strength of the resultant carbon fiber was increased to 1350 MPa with a diameter around 8 µm under the only carbonization temperature of at 800 °C for 5 min. View Full-Text
Keywords: hyper-coal; hydrogenation; spinnable pitch; carbon fiber hyper-coal; hydrogenation; spinnable pitch; carbon fiber
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Yang, J.; Wu, W.; Zhang, X.; Shi, K.; Li, X.; Yoon, S.-H. Improving Spinnability of Hyper-Coal Derived Spinnable Pitch through the Hydrogenation with 1,2,3,4-Tetrahydroquinoline. C 2018, 4, 46.

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