Comparison of some coating techniques to fabricate barrier layers on packaging materials

Terhi Hirvikorpi, Mika Vähä-Nissi, Ali Harlin, M. Karppinen

Research output: Contribution to journalArticleScientificpeer-review

52 Citations (Scopus)

Abstract

Atomic layer deposition (ALD), electron beam evaporation, magnetron sputtering and a sol-gel method were used to deposit thin aluminum oxide coatings onto two different fiber-based packaging materials of commercial board grades coated with synthetic and biodegradable polymers. Significant decreases in both the water vapor and oxygen permeation rates were observed. With each technique the barrier performance was improved. However, among the techniques tested ALD was found to be most suitable. Our results moreover revealed that biodegradable polylactic acid-coated paperboard with a 25-nm thick layer of aluminum oxide grown by ALD on top of it showed promising barrier characteristics against water vapor and oxygen.
Original languageEnglish
Pages (from-to)5463-5466
JournalThin Solid Films
Volume518
Issue number19
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Keywords

  • Aluminum oxide
  • Atomic layer deposition
  • Barrier coating
  • Electron beam evaporation
  • Magnetron sputtering
  • Sol-gel

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