Influence of high-temperature heat treatment on barrier and functional properties of polyolefin-coated papers

Kimmo Lahtinen (Corresponding Author), Kalle Nättinen, Jari Vartiainen

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)

    Abstract

    In this study, the effect of heat treatment on barrier and functionality of polyolefin-coated papers was investigated. The aim was to find the optimal improvements on barrier without losing the applicability of the materials due to physical damages. The results of the study proved considerable improvement in barrier characteristics of the structures. Both water vapor and oxygen transmission rates of LDPE-coatings decreased linearly following the set-temperature until 200°C. At this point, the treatment caused a continuing decrease in oxygen transmission achieving 10 × lower transmission levels than the untreated structure, whereas moisture transport faced corresponding but lower increase. This was considered to be caused by the difference in diameter of the H2O and O2 molecules; the smaller water molecules are able to penetrate between spherulites, whose size increased due to higher treatment temperature followed by cooling.
    Original languageEnglish
    Pages (from-to)561 - 569
    Number of pages9
    JournalPolymer-Plastics Technology and Engineering
    Volume48
    Issue number5
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Polyolefins
    Heat treatment
    Oxygen
    Molecules
    Steam
    Low density polyethylenes
    Polyethylene
    Temperature
    Water vapor
    Moisture
    Cooling
    Coatings
    Water
    PL 732

    Keywords

    • Extrusion coating
    • heat treatment
    • paper
    • polyolefix

    Cite this

    Lahtinen, Kimmo ; Nättinen, Kalle ; Vartiainen, Jari. / Influence of high-temperature heat treatment on barrier and functional properties of polyolefin-coated papers. In: Polymer-Plastics Technology and Engineering. 2009 ; Vol. 48, No. 5. pp. 561 - 569.
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    Influence of high-temperature heat treatment on barrier and functional properties of polyolefin-coated papers. / Lahtinen, Kimmo (Corresponding Author); Nättinen, Kalle; Vartiainen, Jari.

    In: Polymer-Plastics Technology and Engineering, Vol. 48, No. 5, 2009, p. 561 - 569.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Nättinen, Kalle

    AU - Vartiainen, Jari

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    N2 - In this study, the effect of heat treatment on barrier and functionality of polyolefin-coated papers was investigated. The aim was to find the optimal improvements on barrier without losing the applicability of the materials due to physical damages. The results of the study proved considerable improvement in barrier characteristics of the structures. Both water vapor and oxygen transmission rates of LDPE-coatings decreased linearly following the set-temperature until 200°C. At this point, the treatment caused a continuing decrease in oxygen transmission achieving 10 × lower transmission levels than the untreated structure, whereas moisture transport faced corresponding but lower increase. This was considered to be caused by the difference in diameter of the H2O and O2 molecules; the smaller water molecules are able to penetrate between spherulites, whose size increased due to higher treatment temperature followed by cooling.

    AB - In this study, the effect of heat treatment on barrier and functionality of polyolefin-coated papers was investigated. The aim was to find the optimal improvements on barrier without losing the applicability of the materials due to physical damages. The results of the study proved considerable improvement in barrier characteristics of the structures. Both water vapor and oxygen transmission rates of LDPE-coatings decreased linearly following the set-temperature until 200°C. At this point, the treatment caused a continuing decrease in oxygen transmission achieving 10 × lower transmission levels than the untreated structure, whereas moisture transport faced corresponding but lower increase. This was considered to be caused by the difference in diameter of the H2O and O2 molecules; the smaller water molecules are able to penetrate between spherulites, whose size increased due to higher treatment temperature followed by cooling.

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