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Oxyfluorination of expanded graphite: improving the thermal properties of epoxy composites through interfacial interaction

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2019, 29(4), pp.401-409
  • DOI : 10.1007/s42823-019-00054-8
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : December 18, 2018
  • Accepted : May 22, 2019
  • Published : August 1, 2019

Choi Ye Ji 1 Lee Kyeong Min 1 Kang Da Hee 1 Han Jeong-In 1 Lee, Young-Seak 1

1충남대학교

Accredited

ABSTRACT

To enhance the thermal properties of epoxy composites, expanded graphite (EG) was oxyfluorinated and embedded into epoxy resin as a reinforcement. The maximum thermal conductivity was obtained for epoxy composites with oxyfluorinated EG, representing a 62% increase compared to that of neat epoxy. Additionally, the glass transition temperature (Tg) and integral procedural decomposition temperature of epoxy composites with oxyfluorinated EG show the increase of 6% (4.4 °C) and 106% (264 °C), respectively, which indicated the improvement in thermal stability. These results can be attributed to the interfacial interaction between epoxy and oxyfluorinated EG, which formed strong interfacial interactions between the epoxy resin and EG due to the presence of oxygen- and fluorine-containing functional groups in oxyfluorinated EG.

Citation status

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Total Citation Counts(KCI+WOS) (7) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (7) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2023-10-01)

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