The effect of physical adhesion promotion treatments on interfacial adhesion in cellulose-epoxy

Sanna Siljander, Jani Lehmonen, Atsushi Tanaka, Jukka Ketoja, Pirjo Heikkilä, Matti Putkonen, Johanna Lahti, Essi Sarlin, Jyrki Vuorinen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    The adhesion between reinforcing fibres and matrix material is crucial for the performance of composite structures. In this study we treated foam formed cellulose fibre sheets with plasma and atomic layer deposition (ALD) treatments to achieve better adhesion between cellulose fibres and epoxy matrix. Plasma treatment was done using 8 kW and 12 kW outputs and ALD cycles with Ti2O and Al2O3. Surface treated foam formed sheets were laminated into composite structure with epoxy resin using vacuum assisted resin infusion. Complete laminated composites were water jet cut and interlaminar shear strength was measured. Effect of plasma treatment to adhesion was minimal and ALD treatment had minimal or no effect at all. Reason for low ILSS values can be explained with high void content of samples caused by processing aids in foam forming process.
    Original languageEnglish
    Title of host publicationProceedings of 20th International Conference on Composite Material
    Number of pages10
    Publication statusPublished - 2015
    MoE publication typeB3 Non-refereed article in conference proceedings
    Event20th International Conference on Composite Materials, ICCM20 - Copenhagen, Denmark
    Duration: 19 Jul 201524 Jul 2015
    Conference number: 20
    http://www.iccm20.org/welcome (20th International Conference on Composite Materials, ICCM20)

    Conference

    Conference20th International Conference on Composite Materials, ICCM20
    Abbreviated titleICCM20
    Country/TerritoryDenmark
    CityCopenhagen
    Period19/07/1524/07/15
    Internet address

    Keywords

    • adhesion promotion
    • interfacial adhesion
    • foam forming
    • cellulose-epoxy composite

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