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Wyszukujesz frazę "recycled plastics" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Circular economy: comparative life cycle assessment of fossil polyethylene terephthalate (PET) and its recycled and bio-based counterparts
    Autorzy:
    Rybaczewska-Błażejowska, Magdalena
    Mena-Nieto, Angel
    Powiązania:
    https://bibliotekanauki.pl/articles/1841392.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    circular economy
    life cycle assessment
    LCA
    polyethylene terephthalate
    PET
    polylactic acid
    PLA
    recycled plastics
    sustainable consumption
    packaging waste management
    Opis:
    The transition to circular economy requires diversifying material sources, improving secondary raw materials management, including recycling, and finally finding sustainable alternative materials. Both recycled and bio-based plastics are often regarded as promising alternatives to conventional fossil-based plastics. Their broad application instead of fossilbased plastics is, however, frequently the subject of criticism because of offering limited environmental benefits. The study presents a comparative life cycle assessment (LCA) of fossil-based polyethylene terephthalate (PET) versus its recycled and bio-based counterparts. The system boundary covers the plastics manufacturing and end-of-life plastic management stages (cradle-to-cradle/grave variant). Based on the data and assumptions set out in the research, recycled PET (rPET) demonstrates the best environmental profile out of the evaluated plastics in all impact categories. The study contributes to circular economy in plastics by providing transparent and consistent knowledge on their environmental portfolio.
    Źródło:
    Management and Production Engineering Review; 2020, 11, 4; 121-128
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigations of technical challenges in compounding of recycled carbon fibers
    Autorzy:
    Hannan, Azmin
    Seidlitz, Holger
    Krenz, Jonas
    Müller, Marco
    Powiązania:
    https://bibliotekanauki.pl/articles/37177656.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Zarządzania Produkcją
    Tematy:
    CFRP
    carbon fiber reinforced plastics
    rCF
    recycled carbon fibers
    recycling
    circular economy
    compounding
    carbon fibers
    tworzywa sztuczne wzmocnione włóknem węglowym
    włókna węglowe z recyklingu
    gospodarka cyrkularna
    włókna węglowe
    Opis:
    Carbon fiber reinforced plastics (CFRP) owing to its excellent properties have found its extensive application in various fields ranging from medical to automobile and aerospace industries. This has thereby led to ever-increasing demand of carbon fiber production and as well as resulting in tonnes of carbon fiber wastes in the landfills [5]. Due to the high positive impacts of using carbon fibers, the energy intensive and cost intensive production of virgin fibers and the growing landfills are often overlooked. Hence, the need for recycling and repurposing of carbon fiber wastes have gained the significance at present day. Although various recycling technologies have been developed yet, various challenges are faced with processing of recycled carbon fibers (rCF). Besides, the desired application specific properties are not compromised for high cost and high-energy requirement. Therefore, an overall development of processing rCF is sought from not only a sustainability point but also an economic point [7]. Various efficient recycling technologies are currently operating. The challenges arises in commercializing the recycled fibers after the recycling process. The recycled fibers often require various post-processing of fibers and undergoes fiber degradation. This induces a skeptical mindset for the buyers to introduce the recycled fibers in the material ecosystem. This paper currently discusses the processing challenges of long rCF in a compounding plant. To form a closed loop, the recycled fibers are obtained from the novel thermocatalytic degassing process from the CFRP recycling pioneers in Germany, Global EnerTec AG, Guben. This plant in Guben not only recycles carbon fibers from automotive CFRP wastes but also repurposes the epoxy matrices into secondary energy sources. This paper focuses in investigating the processing of rCF obtained from a 100% recycling technology. The aim is to investigate the possible technical challenges so that the rCF can be repurposed to new product manufacturing. Thereby, addressing the concerns with the development of closed loop circular economy in recycling CFRP wastes.
    Źródło:
    Zarządzanie Przedsiębiorstwem; 2023, 26, 2; 7-12
    1643-4773
    Pojawia się w:
    Zarządzanie Przedsiębiorstwem
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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