Simultaneous enhancement of mechanical and electrical properties of carbon nanotube fiber by infiltration and subsequent carbonization of resorcinol-formaldehyde resin

Young Jin Kim, Junbeom Park, Hyungjun Kim, Hyeon Su Jeong, Joong Hee Lee, Seung Min Kim, Young Kwan Kim

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

An efficient strategy to enhance mechanical and electrical properties of carbon nanotube (CNT) fiber is developed by using resorcinol-formaldehyde (RF) resin as a functional infiltrating agent that can be carbonized under a mild condition. This strategy is a sequential process including infiltration of RF resin into CNT fiber, thermal stabilization and carbonization. The selection of resin and additive, and enhancement mechanism are elucidated by theoretical and experimental approaches. By using this strategy, the tensile strength, modulus, specific tensile strength and electrical conductivity of CNT fiber are enhanced by 8.2, 16.4, 2.1 and 3.6 fold, respectively.

Original languageEnglish
Pages (from-to)431-437
Number of pages7
JournalComposites Part B: Engineering
Volume163
DOIs
StatePublished - 15 Apr 2019

Keywords

  • Carbon-carbon composites (CCCs)
  • Electrical properties
  • Fibres
  • Heat treatment
  • Mechanical properties

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