Detergent impurity effect on recycled HDPE: Properties after repetitive processing

Ville Mylläri, Samuel Hartikainen, Valeria Poliakova, Reetta Anderson, Ilari Jönkkäri, Pertti Pasanen, Mirja Andersson, Jyrki Vuorinen

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    7 Sitaatiot (Scopus)

    Abstrakti

    High density polyethylene (rHDPE) is extruded 1 to 8 times, with and without detergent, to simulate the effects of impurities on the material and on the artificial ageing process. The mechanical properties, thermal stability, rheology, Fourier transform infrared spectroscopy (FTIR), and volatile organic compound (VOC) emissions are measured. According to the results, ageing of rHDPE increases tensile strength, reduces elongation, and enhances side chain branching of the material and thus causes rheological changes. The addition of detergent reduces changes in mechanical properties and rheological behavior but accelerates thermal degradation. VOC and FTIR measurements of the samples with detergent addition show generation of harmful 1,4-dioxane. The amount of total emission, as well as emissions of important perfumes limonene and 1R-α-pinene, decreases during multiple extrusion cycles. Heating of the plastics is found to be a major factor in the VOC emission reduction. Impurities have a notable effect on the artificial ageing results.

    AlkuperäiskieliEnglanti
    Artikkeli43766
    JulkaisuJournal of Applied Polymer Science
    Vuosikerta133
    Numero31
    DOI - pysyväislinkit
    TilaJulkaistu - 15 elok. 2016
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 1

    !!ASJC Scopus subject areas

    • Chemistry(all)
    • Surfaces, Coatings and Films
    • Polymers and Plastics
    • Materials Chemistry

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