Miscanthus stem fragment – Reinforced polypropylene composites: Development of an optimized preparation procedure at small scale and its validation for differentiating genotypes |
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| Institution: | 1. Mines ParisTech, PLS – Research University, CEMEF - Centre de Mise en Forme des Matériaux, UMR CNRS 7635, CS 10207, Rue Claude Daunesse, 06904, Sophia Antipolis Cedex, France;2. INRA, UE GCIE, Estrées-Mons, F-80203, Péronne, France;3. INRA Agrolmpact, Site d''Estrées-Mons BP 50136, 80203 Péronne Cedex, France;1. Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, Jiangsu, 212013, China;2. Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, Beijing Institute of Aeronautical Materials, Beijing, 100095, China;1. Concordia Centre for Composites (CONCOM), Department of Mechanical and Industrial Engineering, Concordia University, 1455 De Maisonneuve Blvd. W., Montreal, Quebec, H3G1M8, Canada;2. Center for Applied Research on Polymers and Composites (CREPEC), Canada;1. Laboratory of Applied Physics and Mechanics of Advanced Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China;2. School of Materials Science and Engineering, Southwest University, Chongqing 400715, China;3. Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China;1. Private Practice, Riberião Preto, Brazil;2. Professor, Department of Orthodontics, Universidade Estadual Paulista, Araraquara, Brazil;3. South America Representative, FlackTek Inc.-SpeedMixer, São Carlos, Brazil;4. Adjunct Professor, Program of Restorative Dentistry, Universidade Estadual Paulista, Araraquara, Brazil;5. Adjunct Professor, Program of Orthodontics, Universidade Estadual Paulista, and Private Practice, Araraquara, Brazil |
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| Abstract: | The production of ligno-cellulosic biomass-based composites requires the development of new methodologies to evaluate the reinforcement potential of a given biomass, such as miscanthus studied in the work. Miscanthus stems from thirteen genotypes were broken into elongated fragments and mixed with polypropylene composites in an internal mixer. The aim is to find the best protocol able to discriminate miscanthus genotypes for their reinforcement capability. The following process parameters were optimized in order to maximize the reinforcement effect of the stem fragment filler: mixing parameters (mixing time, rotor speed and chamber temperature), temperature, fragment content, size and length distributions and coupling agent. The relationship between the process parameters and the mechanical properties of composites were analyzed to evaluate the influence of genotype on reinforcement performance, showing the robustness of the protocol in effectively discriminating genotypes according to their reinforcing capacity. |
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| Keywords: | Particle-reinforced composite Biocomposite Natural fibers Mechanical properties |
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