The effect of a curing agent on the thermal degradation of fire retardant brominated epoxy resins

A.I. Balabanovich, A. Hornung, D. Merz, H. Seifert

Research output: Contribution to journalArticle

Abstract

The diglycidyl ether of tetrabromobisphenol A, the diglycidyl ether of bisphenol A and their mixture was cured by 4,4'-diaminodiphenyl methane. The pyrolysis of the obtained epoxy resins was studied by TG, DSC, TG/FTIR as well as FTIR characterization of pyrolysis residues. The gaseous and high boiling pyrolysis products were collected, characterized by GC/MS and their formation is discussed. The brominated epoxy resins are thermally less stable than the non-brominated ones. This effect is caused by the amine-containing hardener. The degradation initiation reaction is associated with the formation of hydrogen bromide which further destabilizes the epoxy network. The effect of the curing agent can be used in recycling of epoxy resins to separate brominated pyrolysis products from non-brominated ones.
Original languageEnglish
Pages (from-to)713-723
Number of pages11
JournalPolymer Degradation and Stability
Volume85
Issue number1
DOIs
Publication statusPublished - Jul 2004

Keywords

  • brominated epoxy resin
  • pyrolysis
  • GC/MS
  • FTIR
  • TG/FTIR
  • WEEE

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