Pyrolysis of wood, cellulose, lignin-brominated epoxy oligomer flame retardant mixtures

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11 Citations (Scopus)

Abstract

The thermal decomposition of brominated epoxy oligomer (BrEpoxy)-natural polymer mixtures were examined by Py-GC/MS and TG/MS techniques in order to clarify the reactions between the components of the mixtures. The natural polymer components were: pine and beech wood, pine and beech milled wood lignin and two types of cellulose (Avicel and Whatman cellulose). It was found that the decomposition of both celluloses shifts to the temperature range of BrEpoxy decomposition. Significantly decreased formation of hydroxyacetaldehyde, hydroxypropanone and levoglucosan and increased yield of levoglucosenone was observed from cellulose-BrEpoxy mixtures. Drastically increased evolution of bromomethane was found from lignin or wood-BrEpoxy mixtures, indicating a radical scavenging reaction of lignin leading to the formation of bromomethane and phenoxy radicals.

Original languageEnglish
Pages (from-to)52-59
Number of pages8
JournalJournal of Analytical and Applied Pyrolysis
Volume103
DOIs
Publication statusPublished - Sep 2013

Fingerprint

Flame Retardants
Lignin
Flame retardants
Oligomers
methyl bromide
Cellulose
Wood
Pyrolysis
Natural polymers
Decomposition
Scavenging
Temperature

Keywords

  • Biomass
  • BrEpoxy
  • Flame retardant
  • Gas chromatography
  • Mass spectrometry
  • TBBPA
  • Thermogravimetry

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

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title = "Pyrolysis of wood, cellulose, lignin-brominated epoxy oligomer flame retardant mixtures",
abstract = "The thermal decomposition of brominated epoxy oligomer (BrEpoxy)-natural polymer mixtures were examined by Py-GC/MS and TG/MS techniques in order to clarify the reactions between the components of the mixtures. The natural polymer components were: pine and beech wood, pine and beech milled wood lignin and two types of cellulose (Avicel and Whatman cellulose). It was found that the decomposition of both celluloses shifts to the temperature range of BrEpoxy decomposition. Significantly decreased formation of hydroxyacetaldehyde, hydroxypropanone and levoglucosan and increased yield of levoglucosenone was observed from cellulose-BrEpoxy mixtures. Drastically increased evolution of bromomethane was found from lignin or wood-BrEpoxy mixtures, indicating a radical scavenging reaction of lignin leading to the formation of bromomethane and phenoxy radicals.",
keywords = "Biomass, BrEpoxy, Flame retardant, Gas chromatography, Mass spectrometry, TBBPA, Thermogravimetry",
author = "Z. Cz{\'e}g{\'e}ny and E. Jakab and M. Blazso",
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T1 - Pyrolysis of wood, cellulose, lignin-brominated epoxy oligomer flame retardant mixtures

AU - Czégény, Z.

AU - Jakab, E.

AU - Blazso, M.

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N2 - The thermal decomposition of brominated epoxy oligomer (BrEpoxy)-natural polymer mixtures were examined by Py-GC/MS and TG/MS techniques in order to clarify the reactions between the components of the mixtures. The natural polymer components were: pine and beech wood, pine and beech milled wood lignin and two types of cellulose (Avicel and Whatman cellulose). It was found that the decomposition of both celluloses shifts to the temperature range of BrEpoxy decomposition. Significantly decreased formation of hydroxyacetaldehyde, hydroxypropanone and levoglucosan and increased yield of levoglucosenone was observed from cellulose-BrEpoxy mixtures. Drastically increased evolution of bromomethane was found from lignin or wood-BrEpoxy mixtures, indicating a radical scavenging reaction of lignin leading to the formation of bromomethane and phenoxy radicals.

AB - The thermal decomposition of brominated epoxy oligomer (BrEpoxy)-natural polymer mixtures were examined by Py-GC/MS and TG/MS techniques in order to clarify the reactions between the components of the mixtures. The natural polymer components were: pine and beech wood, pine and beech milled wood lignin and two types of cellulose (Avicel and Whatman cellulose). It was found that the decomposition of both celluloses shifts to the temperature range of BrEpoxy decomposition. Significantly decreased formation of hydroxyacetaldehyde, hydroxypropanone and levoglucosan and increased yield of levoglucosenone was observed from cellulose-BrEpoxy mixtures. Drastically increased evolution of bromomethane was found from lignin or wood-BrEpoxy mixtures, indicating a radical scavenging reaction of lignin leading to the formation of bromomethane and phenoxy radicals.

KW - Biomass

KW - BrEpoxy

KW - Flame retardant

KW - Gas chromatography

KW - Mass spectrometry

KW - TBBPA

KW - Thermogravimetry

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