Migration and sensory evaluation of irradiated polymers

N.H. Stoffers, J.P.H. Linssen, R. Franz, F. Welle

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24 Citations (Scopus)

Abstract

The effects on ionising irradiation on polymer additives, monomers and polymers themselves have been investigated. Changes of initial concentrations of certain additives and monomers, a change in their specific migration as well as sensory changes of the polymers were examined. Polymer stabilizers such as Irganox 1076 and Irgafos 168 used in polyethylene were found to be degraded by ionising radiation. Decreased concentrations of stabilisers in polyolefins led to lower specific migration, however, not to lower overall migration into food simulants. Irganox 1076 levels in polystyrene did not change up to irradiation doses of 54kGy. Sensory properties of LDPE, HDPE, PA6 and PA12 worsened, while sensory properties of PS improved with increasing irradiation doses.
Original languageEnglish
Pages (from-to)205-208
JournalRadiation Physics and Chemistry
Volume71
Issue number1-2
DOIs
Publication statusPublished - 2004

Keywords

  • chromatography-mass spectrometry
  • volatile radiolysis products
  • plastics

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