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Study on effect of crosslink structure on decomposition of epoxy resins in nitric acid

  • Yu Yan Liu*
  • , Li Li
  • , Song Quan Wu
  • , Yu Pan Tang
  • *Corresponding author for this work
  • School of Chemistry and Chemical Engineering, Harbin Institute of Technology
  • Carnegie Mellon University

Research output: Contribution to journalArticlepeer-review

Abstract

One chemical approach using nitric acid as the solvent to decompose thermosetting epoxy resin was discussed. The samples were prepared by using different kinds of curing agents, namely polyamide (PA651), isophorone diamine (IPDA), 4, 4'-diaminodiphenylmethane (DDM) and 2-ethyl-4-methy-imidazole (EMI-2, 4) and different kinds of epoxy resins, namely bisphenol-A epoxy resin(E-44), bisphenol-A epoxy resin(E-51), N, N, N', N' teraglycidy 4, 4' diaminodiphenyl methane (AG-80) and diglycidyl-4, 5-epoxycyclohexane-1, 2-dicarboxylate (TDE-85). Their effects on decomposition rate were investigated and the decomposition products were analyzed by Infra-red (IR) spectra, and Gas Chromatography-Mass Spectrometry (GC-MS). Based on conclusions drawn from experiments, the mechanism of degrading thermosetting epoxy resin with nitric acid was envisaged tentatively.

Original languageEnglish
Pages (from-to)19-25
Number of pages7
JournalJournal of Harbin Institute of Technology (New Series)
Volume19
Issue number4
StatePublished - Aug 2012
Externally publishedYes

Keywords

  • Chemical decomposition
  • Epoxy resin
  • Nitric acid

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