Albrecht, Katharina

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Albrecht, Katharina
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Albrecht, Katharina

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    Item-typ:Veröffentlichung,
    Stiffness and Strength-Related Sustainability Assessment of Natural Fibers for Injection Molded Composites
    (Taylor & Francis, 2025-07)
    Sprenger, Jan-Marten
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    Albrecht, Katharina
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    Minkov, Nikolay
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    Finkbeiner, Matthias
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    Schönfeld, Lea
    The growing demand for sustainable materials has led to an increased interest in bio-based composites reinforced with natural fibers such as flax, hemp, kenaf, and sisal. This study presents a comparative sustainability assessment of these fibers, highlighting significant differences based on processing methods and fiber characteristics. Life cycle assessment (LCA) results show that flax tow, a by-product of textile flax production, has the lowest environmental impact under economic allocation. In contrast, the impact of sisal fiber varies greatly depending on the processing method: wet separation in Tanzania significantly increases water consumption and methane emissions, while dry extraction methods in Brazil reduce these impacts. An integrated tool has been developed to incorporate material performance metrics into sustainability assessments to improve sustainable material selection, addressing the “LCA paradox.” This property-specific assessment framework enables multidisciplinary collaboration and supports the development of environmentally optimized natural fiber composites for injection molding and other applications.
    Wissenschaftlicher Artikel
    Band:22
    Heft:1
      6
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    Item-typ:Veröffentlichung,
    Nettle, a Long-Known Fiber Plant with New Perspectives
    (MDPI, 2022-06-17)
    Viotti, Chloé
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    Albrecht, Katharina
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    Amaducci, Stefano
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    Bardos, Paul
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    Bertheau, Coralie
    The stinging nettle Urticadioica L. is a perennial crop with low fertilizer and pesticide requirements, well adapted to a wide range of environmental conditions. It has been successfully grown in most European climatic zones while also promoting local flora and fauna diversity. The cultivation of nettle could help meet the strong increase in demand for raw materials based on plant fibers as a substitute for artificial fibers in sectors as diverse as the textile and automotive industries. In the present review, we present a historical perspective of selection, harvest, and fiber processing features where the state of the art of nettle varietal selection is detailed. A synthesis of the general knowledge about its biology, adaptability, and genetics constituents, highlighting gaps in our current knowledge on interactions with other organisms, is provided. We further addressed cultivation and processing features, putting a special emphasis on harvesting systems and fiber extraction processes to improve fiber yield and quality. Various uses in industrial processes and notably for the restoration of marginal lands and avenues of future research on this high-value multi-use plant for the global fiber market are described.
    Wissenschaftlicher Artikel
    Band:15
    Heft:12
      131