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Decomposition behavior and decomposition products of epoxy resin cured with MeHHPA in near-critical water

  • Xianyun Gong
  • , Yuyan Liu*
  • , Xuegang Jia
  • , Guohua Shan
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A kind of chemical method that used water as the liquid reaction medium to decompose epoxy resin was studied. The thermosetting epoxy resin was decomposed successfully under the condition of near-critical water. The decomposition rate of epoxy resin raised rapidly as the reaction time and reaction temperature increased. The decomposition reaction products were characterized by infra-red spectra and gas chromatography-mass spectrometry. The phenol, isopropylphenol, 4, 4′-(1-methylethylidene) bis-phenol were found as the main compounds in liquid products, which were common monomers from epoxy resin. When reaction was carried out at the temperature of 260 C-300 C, the decomposition mechanism of epoxy resin was envisaged as the ether and ester bonds cracking.

Original languageEnglish
Pages (from-to)781-786
Number of pages6
JournalJournal Wuhan University of Technology, Materials Science Edition
Volume28
Issue number4
DOIs
StatePublished - Aug 2013
Externally publishedYes

Keywords

  • decomposition
  • epoxy resin
  • mechanism
  • near-critical water

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