Faculty of Mechanical Engineering, Lj. (FSLJ)
  • Tribological behaviour of green wood-based unrecycled and recycled polypropylene composites [Elektronski vir]
    Jan, Petra, 1994- ...
    Polymer biocomposites using natural fibres such as wood flour, jute, sunflower seeds and clay are attracting attention due to their sustainability potential and cost advantages. In this study we ... evaluated the tribological performance of polypropylene (PP) composites with wood-flour fillers obtained as a by-product from the wood-processing industry, which were based on unrecycled and recycled PP polymer matrices. The mechanical properties of PP-wood composites with wood-filler loadings of 0–40 wt% were determined with tensile tests and their friction and wear behaviours were studied with dry reciprocating ball-on-disc sliding tests against 100Cr6 steel balls at room temperature. The addition of the wood fillers resulted in a significant improvement in the tribological performance compared to the neat, unrecycled and recycled PP materials: the friction coefficient decreased by up to 29%, while the wear resistance was improved by up to 96% for the 40 wt% wood-filler content. Both types of composites reached a similar level of improvement, but the unrecycled PP-wood composites performed better than the recycled composites. The wear resistance was improved even with the addition of a small quantity of wood filler (63% improvement for the unrecycled PP-wood composites and 43% for recycled PP-wood composites at 5 wt%), which indicates that the use of wood fillers could be a sustainable and cost-effective way to compensate for the typically poorer properties of recycled polymer materials.
    Source: 24th International Conference on Wear of Materials, 16-20 April 2023, Banff, Alberta, Canada [Elektronski vir]
    Type of material - conference contribution ; adult, serious
    Publish date - 2023
    Language - english
    COBISS.SI-ID - 151846659

    Link(s):

    https://www.wearofmaterialsconference.com/conference-program.asp

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