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

    58 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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