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Evaluation of the utility of isotropic pitches as solvent components of spinnable mesophase pitch precursors for highly graphitizable functional carbon materials.

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Title: Evaluation of the utility of isotropic pitches as solvent components of spinnable mesophase pitch precursors for highly graphitizable functional carbon materials.
Authors: Shimanoe, Hiroki1 (AUTHOR), Mashio, Takashi2 (AUTHOR), Tomaru, Taisei2 (AUTHOR), Ha, Seung-Jae3,4 (AUTHOR), Jeon, Young-Pyo1,3,4 (AUTHOR) ypjeon@krict.re.kr, Nakabayashi, Koji1,2 (AUTHOR) nakabayashi@cm.kyushu-u.ac.jp, Miyawaki, Jin1,2 (AUTHOR), Yoon, Seong-Ho1,2 (AUTHOR)
Source: Journal of Industrial & Engineering Chemistry. Apr2023, Vol. 120, p325-331. 7p.
Subjects: Lyotropic liquid crystals, Polymer liquid crystals, Heat treatment, Coal tar, Young's modulus, Solvents, Carbon fibers
Abstract: [Display omitted] Spinnable mesophase pitch (SMP) is an important graphitizable precursor for high-performance carbon materials. Generally, SMPs show fully developed anisotropic texture, and the pitches contain isotropic contents more than 30 wt%, which plays the role of solvent for the mesogenic components in the lyotropic liquid crystalline system of the pitch. Here, we prepared SMP by blending the mesogenic components of AR mesophase pitch with various isotropic pitches to evaluate the usability of isotropic pitches as solvents. The mesogenic components were prepared by tetrahydrofuran fractionation of AR mesophase pitch. Isotropic pitches with a softening point of 140–220 °C were prepared separately by simple heat treatment of slurry oil (SO) and coal tar pitch (CTP). SMPs were prepared by thermal blending of the above mentioned mesogenic components and isotropic pitches in various blending ratios. CTP-derived isotropic pitch showed better solvent performance than a SO-derived pitch in terms of anisotropic texture. SMP prepared by blending of the mesogenic components and CTP-derived isotropic pitch with a softening point of 180 °C at the ratio of 4/6 (w/w) showed almost 100% anisotropic texture; the carbon fiber derived from the pitch showed tensile strength of 2.7 GPa and Young's modulus of 470 GPa after graphitization at 2,800 °C. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Industrial & Engineering Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 161954617
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Evaluation of the utility of isotropic pitches as solvent components of spinnable mesophase pitch precursors for highly graphitizable functional carbon materials.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Shimanoe%2C+Hiroki%22">Shimanoe, Hiroki</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mashio%2C+Takashi%22">Mashio, Takashi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tomaru%2C+Taisei%22">Tomaru, Taisei</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ha%2C+Seung-Jae%22">Ha, Seung-Jae</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jeon%2C+Young-Pyo%22">Jeon, Young-Pyo</searchLink><relatesTo>1,3,4</relatesTo> (AUTHOR)<i> ypjeon@krict.re.kr</i><br /><searchLink fieldCode="AR" term="%22Nakabayashi%2C+Koji%22">Nakabayashi, Koji</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> nakabayashi@cm.kyushu-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Miyawaki%2C+Jin%22">Miyawaki, Jin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yoon%2C+Seong-Ho%22">Yoon, Seong-Ho</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Industrial+%26+Engineering+Chemistry%22">Journal of Industrial & Engineering Chemistry</searchLink>. Apr2023, Vol. 120, p325-331. 7p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Lyotropic+liquid+crystals%22">Lyotropic liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+liquid+crystals%22">Polymer liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Coal+tar%22">Coal tar</searchLink><br /><searchLink fieldCode="DE" term="%22Young's+modulus%22">Young's modulus</searchLink><br /><searchLink fieldCode="DE" term="%22Solvents%22">Solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+fibers%22">Carbon fibers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: [Display omitted] Spinnable mesophase pitch (SMP) is an important graphitizable precursor for high-performance carbon materials. Generally, SMPs show fully developed anisotropic texture, and the pitches contain isotropic contents more than 30 wt%, which plays the role of solvent for the mesogenic components in the lyotropic liquid crystalline system of the pitch. Here, we prepared SMP by blending the mesogenic components of AR mesophase pitch with various isotropic pitches to evaluate the usability of isotropic pitches as solvents. The mesogenic components were prepared by tetrahydrofuran fractionation of AR mesophase pitch. Isotropic pitches with a softening point of 140–220 °C were prepared separately by simple heat treatment of slurry oil (SO) and coal tar pitch (CTP). SMPs were prepared by thermal blending of the above mentioned mesogenic components and isotropic pitches in various blending ratios. CTP-derived isotropic pitch showed better solvent performance than a SO-derived pitch in terms of anisotropic texture. SMP prepared by blending of the mesogenic components and CTP-derived isotropic pitch with a softening point of 180 °C at the ratio of 4/6 (w/w) showed almost 100% anisotropic texture; the carbon fiber derived from the pitch showed tensile strength of 2.7 GPa and Young's modulus of 470 GPa after graphitization at 2,800 °C. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Industrial & Engineering Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jiec.2022.12.039
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 325
    Subjects:
      – SubjectFull: Lyotropic liquid crystals
        Type: general
      – SubjectFull: Polymer liquid crystals
        Type: general
      – SubjectFull: Heat treatment
        Type: general
      – SubjectFull: Coal tar
        Type: general
      – SubjectFull: Young's modulus
        Type: general
      – SubjectFull: Solvents
        Type: general
      – SubjectFull: Carbon fibers
        Type: general
    Titles:
      – TitleFull: Evaluation of the utility of isotropic pitches as solvent components of spinnable mesophase pitch precursors for highly graphitizable functional carbon materials.
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          Name:
            NameFull: Shimanoe, Hiroki
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            NameFull: Mashio, Takashi
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            NameFull: Tomaru, Taisei
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            NameFull: Ha, Seung-Jae
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            NameFull: Jeon, Young-Pyo
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            NameFull: Nakabayashi, Koji
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            NameFull: Miyawaki, Jin
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            NameFull: Yoon, Seong-Ho
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            – D: 25
              M: 04
              Text: Apr2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 1226086X
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              Value: 120
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            – TitleFull: Journal of Industrial & Engineering Chemistry
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