High performance hybrid PP and PLA biocomposites reinforced with short man-made cellulose fibres and softwood flour |
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| Affiliation: | 1. KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Division of Surface and Corrosion Science, SE-100 44, Stockholm, Sweden;2. Department of Industrial Engineering, University of Trento, 38123, Trento, Italy;3. RISE Research Institutes of Sweden, Division Bioscience and Materials Surface, Process and Formulation, SE-11486, Stockholm, Sweden;1. Chemical Process Department, Rio de Janeiro State University, São Francisco Xavier, 524, Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil;2. Instituto de Macromoléculas Professora Eloisa Mano, Rio de Janeiro Federal University, Av. Horácio Macedo, 2030, Centro de Tecnologia, Prédio do Bloco J, CEP 21941-598 Rio de Janeiro, RJ, Brazil;3. Programa de Engenharia Ambiental, Rio de Janeiro Federal University, Av. Athos da Silveira, 149, Centro de Tecnologia, Bloco A, CEP 21941-909 Rio de Janeiro, RJ, Brazil;1. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;2. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China;1. Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz 90-363, Poland;2. Department of Chemical Engineering and Materials Science, University of Pisa, Pisa 56122, Italy;3. Institute for Polymers, Composites and Biomaterials IPCB-CNR, Largo L. Lazzarino 2, Pisa 56122, Italy |
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| Abstract: | This paper presents the research on hybrid thermoplastic biocomposites reinforced with a combination of short man-made cellulose fibres and softwood flour. The introduced short fibre composites are meant to be processed with injection moulding and may be an alternative to glass-fibre reinforced thermoplastics on account of their comparable specific strengths. The occurring positive hybrid effect enables to substitute up to half the weight of short fibre cellulose reinforcement with softwood flour without a significant reduction of material flexural strength. The flexural modulus of investigated hybrid biocomposites remained approximately at the same level, while impact strength was reduced with increasing softwood flour content. The proposed hybridisation leads to establishing biocomposites of suitable performance with competitive density, price and recycling possibilities in comparison to standard glass fibre reinforced counterparts. Moreover, the application of biobased polymers like polylactide as biocomposite matrix, contributes to the development of so called “green” high performance materials. |
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| Keywords: | A. Hybrid A. Polymer-matrix composites (PMCs) B. Mechanical properties E. Injection moulding |
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