Pultrusion of a flax/polypropylene yarn |
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| Affiliation: | 1. Institut für Verbundwerkstoffe GmbH, Erwin-Schroedinger Strasse 58, D-67663 Kaiserslautern, Germany;2. Laboratory on Structure and Properties of Polymers, ‘St. Kliment Ohridsky’ University of Sofia, Faculty of Chemistry, J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria;3. Institut für Allgemeinen Maschinenbau und Kunststofftechnik, Technische Universität Chemnitz, 09107 Chemnitz, Germany;1. University of Twente, Faculty of Engineering Technology, NL-7500AE Enschede, The Netherlands;2. Technical University of Denmark, Mechanical Engineering Department, 2800 Kgs. Lyngby, Denmark;1. Mechanical and Industrial Production Department, Mondragon Unibertsitatea, Loramendi 4, 20500 Mondragón, Spain;2. Irurena S.A., Ctra. de Tolosa s/n, 20730 Azpeitia, Spain;1. Technical University of Denmark, Mechanical Engineering Department, 2800 Kgs. Lyngby, Denmark;2. University of Twente, Faculty of Engineering Technology, NL-7500AE Enschede, The Netherlands;1. School of Aerospace, Transport and Manufacturing, Cranfield University, Bedford MK43 0AL, UK;2. ADVISE-DETA Ltd, Chios 82100, Greece;3. Exel Composites, Runcorn WA7 3DU, UK;1. Institute for Textile and Fiber Technologies, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany;2. German Institutes of Textile and Fiber Research Denkendorf, Körschtalstraße 26, 73770 Denkendorf, Germany |
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| Abstract: | The present work reports the pultrusion of a flax reinforced polypropylene commingled yarn containing discontinuous flax and polypropylene fibers. This was the first attempt to pultrude this material. Rectangular cross-sectional profiles have been successfully produced using a self-designed pultrusion line. In a series of experiments carried out with yarns of two different flax fiber contents, the pultrusion parameters were varied. In particular, the preheating and die temperatures and also the pulling speed, which are the most relevant parameters regarding the potential future pultrusion of natural fiber composite profiles at industrial scale. A complete characterization of each profile was conducted in order to examine the influence of processing parameters on the profile quality. The mechanical properties were evaluated by performing three point bending as well as Charpy impact tests. |
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