DEHP migration behavior from excessively plasticized PVC sheets

Jung Hwan Kim, Seong Hun Kim, Chang Hyung Lee, Jae Woon Nah, Airan Hahn

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

The quantity, process and kinetics of di-(2-ethylhexyl)phthalate (DEHP) migration in the 30/70 and 40/60 poly(vinylchloride) (PVC)/DEHP blends were investigated using gas chromatograph. A thin and flexible PVC sheet was soaked in surrounding medium (SM) of water/ethanol mixture and acetonitrile with constant stirring to release DEHP. By observed concentration of DEHP in the SM, it is found that acetonitrile is more intense in DEHP migration than water/ethanol mixture. In addition the amount of extracted DEHP is proportional to the leaching temperature and added ratio of DEHP. The behavior of DEHP migration from flexible PVC sheets was described by the Ficks's law with 2.72-10.1 × 10-10 cm2/s of the diffusion coefficients.

Original languageEnglish
Pages (from-to)345-349
Number of pages5
JournalBulletin of the Korean Chemical Society
Volume24
Issue number3
DOIs
Publication statusPublished - 2003 Mar 20

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Keywords

  • Di-(2-ethylhexyl) phthalate
  • Fickian behavior
  • Plasticizer migration
  • Poly(vinylchloride)

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