Physical and chemical properties of γ-irradiated EVOH film

Young Jae Byun, S. I. Hong, K. B. Kim, D. H. Jeon, J. M. Kim, W. S. Whiteside, Hyun Jin Park

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

The effects of γ-irradiation on ethylene vinyl alcohol copolymer (EVOH) were investigated. Oxygen permeability decreased as irradiation dose increased in non-oriented (EF-CR), biaxially oriented (EF-XL) EVOH, and nylon/EVOH/PP. Irradiation increased tensile strength (TS) and elongation at break (%E) of EF-CR; whereas, TS of EF-XL was not significantly changed and %E of EF-XL decreased. Irradiation had no effect on TS and %E of nylon/EVOH/PP. Four volatile compounds, ε-caprolactam, 2-propyldecanol, 2-butyloctanol, and 2,3-diethyl-2,3-dimethyl-1,4-butanediol, were detected after irradiation. Optical properties were not changed.

Original languageEnglish
Pages (from-to)974-981
Number of pages8
JournalRadiation Physics and Chemistry
Volume76
Issue number6
DOIs
Publication statusPublished - 2007 Jun

Keywords

  • EVOH
  • Free volume
  • Oxygen permeability
  • Physicochemical property changes
  • γ-irradiation

ASJC Scopus subject areas

  • Radiation

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