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Eichelter Johanna Wilhelm Harald Mautner Andreas Fahrngruber Barbara Schafler Erhard Eder Andreas Kozich Martin Bismarck Alexander 《Journal of Polymers and the Environment》2021,29(11):3509-3524
Journal of Polymers and the Environment - We evaluated the influence of blending various renewable polymer grades and amounts to allow for high stretchability during stretching at 800 mm/s... 相似文献
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Alexander Bismarck Alexis Baltazar-Y-Jimenez Katharine Sarikakis 《Environment, Development and Sustainability》2006,8(3):445-463
Much academic research and industrial development explores new ways to create greener and environmentally friendlier chemicals
and materials for a variety of applications. A significant part of this work focuses on the development, processing and manufacturing,
recycling and disposal of green plastics, adhesives, polymer composites, blends and many other industrial products from renewable resources. Natural fibres
offer the potential to deliver greater added value, sustainability, renewability and lower costs especially in the automotive
industry. Further research involves the fibre crop production. The ever-increasing volume of scientific literature refers
with enthusiasm to the potential of natural fibres in technological, economic and ecological terms. This enthusiasm tends
to also expand to the areas of human life and socio-economic development for the fibre crop growers and their communities.
However, there is very little debate or evidence to support statements about the assumed advantages for the affected population
in rural areas. We argue that despite the predicted new boom in the demand of natural fibres, it is unlikely that this will
represent a real improvement in the quality of life of crop fibre growers and their communities. This paper examines the experience
of Mexico as a case study and argues that only through consistent political will and co-operation between governments, industry,
scientists, consumer groups and local communities, as well as a suitable economic strategy such as local subsidies, a truly
sustainable economic development, social equity and improved environmental quality will be achieved for tens of thousands
of natural fibre growers. 相似文献
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Franck Quero Stephen J. Eichhorn Masaya Nogi Hiroyuki Yano Koon-Yang Lee Alexander Bismarck 《Journal of Polymers and the Environment》2012,20(4):916-925
This article presents approaches to maximize the mechanical performance of bacterial cellulose/poly(lactic acid) composites through chemical modification of the interface. This is achieved by both cross-linking the layered bacterial cellulose structure and by grafting maleic anhydride to the matrix material. Unmodified and glyoxalized bacterial cellulose (BC) networks have been embedded in poly(lactic acid) (PLA) resin and then in maleated resin using a compression molding method. The effect of these chemical modifications on the physical properties of these composites is reported. The tensile properties of the composites showed that Young??s moduli can be increased significantly when both BC networks and PLA were chemically modified. Interface consolidation between layers in BC networks has been achieved by glyoxalization. The effect of these modifications on both stress-transfer between the fibers and between the matrix and the fibers was quantified using Raman spectroscopy. Two competitive deformation mechanisms are identified; namely the mobility between BC layers, and between BC and PLA. The coupling strength of these interfaces could play a key role for optimization of these composites?? mechanical properties. 相似文献
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