Highly chlorinated polyvinyl chloride as a novel precursor for fibrous carbon material

Jinchang Liu, Hiroki Shimanoe, Seunghyun Ko, Hansong Lee, Chaehyun Jo, Jaewoong Lee, Seong Hwa Hong, Hyunchul Lee, Young Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong Ho Yoon

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Pure, highly chlorinated polyvinyl chloride (CPVC), with a 63 wt % of chlorine, showed a unique-thermal-pyrolytic-phenomenon that meant it could be converted to carbon material through solid-phase carbonisation rather than liquid-phase carbonisation. The CPVC began to decompose at 270 °C, with a rapid loss in mass due to dehydrochlorination and novel aromatisation and polycondensation up to 400 °C. In this study, we attempted to prepare carbon fibre (CF) without oxidative stabilisation, using the aforementioned CPVC as a novel precursor. Through the processes of solution spinning and solid-state carbonisation, the spun CPVC fibre was directly converted to CF, with a carbonisation yield of 26.2 wt %. The CPVC-derived CF exhibited a relatively smooth surface; however, it still demonstrated a low mechanical performance. This was because the spun fibre was not stretched during the heat treatment. Tensile strength, Young's modulus and elongation values of 590 ± 84 MPa, 50 ± 8 GPa, and 1.2 ± 0.2%, respectively, were obtained from the CPVC spun fibre, with an average diameter of 19.4 μm, following carbonisation at 1600 °C for 5 min.

Original languageEnglish
Article number328
JournalPolymers
Volume12
Issue number2
DOIs
Publication statusPublished - Feb 1 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Polymers and Plastics

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