Effect of the pre-treated pyrolysis fuel oil: coal tar pitch ratio on the spinnability and oxidation properties of isotropic pitch precursors and the mechanical properties of derived carbon fibers

Liu, Jinchang; Shimanoe, Hiroki; Choi, Jong Eun; Ko, Seunghyun; Jeon, Young Pyo; Nakabayashi, Koji; Miyawaki, Jin; Yoon, Seong Ho

doi:10.1007/s42823-019-00020-4

Cited by 17 publications

(3 citation statements)

References 20 publications

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“…16,17 The carbon fiber reinforced material based on isotropic pitch-based carbon fiber has become one of the preferred materials due to its low price. 16 However, the improvement of the mechanical performance of isotropic pitch-based carbon fiber needs to be largely improved to achieve the requirement of the car body and wind turbine blades.…”

Section: Introductionmentioning

confidence: 99%

“…26,28 Furthermore, the pitch precursor synthesized by the halogenation–dehalogenation method has high softening point, excellent spinning property, good stabilized property, and high mechanical performance, which has been widely used in the development of pitch-based carbon fiber. 16 In this work, the mechanism and application of the halogenation–dehalogenation method were reviewed, the advantages and disadvantages of various halogen sources were revealed, and the future prospects of the halogenation–dehalogenation method were proposed.…”

Section: Introductionmentioning

confidence: 99%

“…15 With the rapid development and application of new energy vehicles and wind power generation, it is significant to light the weight of new energy vehicle bodies and wind turbine blades. 16,17 The carbon fiber reinforced material based on isotropic pitch-based carbon fiber has become one of the preferred materials due to its low price. 16 However, the improvement of the mechanical performance of isotropic pitch-based carbon fiber needs to be largely improved to achieve the requirement of the car body and wind turbine blades.…”

Section: Introductionmentioning

confidence: 99%

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Mechanism and application of halogenation–dehalogenation in the development of pitch-based carbon fiber: A review

Liu

et al. 2023

Journal of Engineered Fibers and Fabrics

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Pitch-based carbon fiber, as one of the important engineering materials, has been widely used in aerospace, defense, sports, and other fields. In the long production process of pitch-based carbon fiber, the property of pitch precursor is significant for the mechanical performance of obtained carbon fiber. Thus, it is crucial to improve the property of pitch precursor by efficient means. Halogenation–dehalogenation is a newly developed method for the controllable synthesis of a pitch precursor from the molecular dimension, including fluorination–defluorination, chlorination–dechlorination, and bromination–debromination. This work reviewed the mechanism and application, as well as the advantages and disadvantages of each halogenation–dehalogenation method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanism and application of halogenation–dehalogenation in the development of pitch-based carbon fiber: A review

Liu

et al. 2023

Journal of Engineered Fibers and Fabrics

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Evaluating multi‐step oxidative stabilization behavior of coal tar pitch‐based fiber

Niu

Zuo

Shen

et al. 2020

J of Applied Polymer Sci

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Oxidative stabilization is an important step for isotropic pitch-based carbon fiber preparation; coal tar pitch-based fiber is treated by multi-step oxidative stabilization under various conditions to investigate the oxidative stabilization mechanism. The chemical structure changes of isotropic pitch-based fiber during the oxidative stabilization and carbonization stage are systematically characterized by In-situ diffuse reflectance infrared Fourier transform, elemental analysis, mass spectroscopy, X-ray photoelectron spectroscopy, nuclear magnetic resonance, scanning electron microscope with an energy dispersive X-ray spectrometer. These results show that the oxygen distribution gradient in oxidative stabilized fiber radial direction become homogeneously with the increasing of oxidation temperature and time under multi-step oxidative stabilization. The resultant carbon fiber shows tensile strength of 942 ± 42 MPa and Young's modulus of 42.8 ± 3.1 GPa due to appropriate oxygen content, homogeneous oxygen distribution, more cross-link bond (C-O-C) content, higher aromaticity and lower weight loss introduced in multi-step oxidative stabilized pitch fiber. The multi-step oxidative stabilization provides synergy effect between reaction rate and the oxygen diffusion rate as well as eliminates the oxygen concentration gradient, it provides an time-saving and energyeffective method for the oxidative stabilization of isotropic pitch-based carbon material (pitch fiber, pitch microsphere, etc.) and improve the resultant carbon material performance.

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Chlorination–dechlorination of coal liquefaction residue using benzyl chloride for general-purpose carbon fiber synthesis

Liu

Shen²,

Liu³

et al. 2022

J Mater Sci

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Effect of the pre-treated pyrolysis fuel oil: coal tar pitch ratio on the spinnability and oxidation properties of isotropic pitch precursors and the mechanical properties of derived carbon fibers

Cited by 17 publications

References 20 publications

Mechanism and application of halogenation–dehalogenation in the development of pitch-based carbon fiber: A review

Mechanism and application of halogenation–dehalogenation in the development of pitch-based carbon fiber: A review

Evaluating multi‐step oxidative stabilization behavior of coal tar pitch‐based fiber

Chlorination–dechlorination of coal liquefaction residue using benzyl chloride for general-purpose carbon fiber synthesis

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