Recycled carbon fibre-reinforced polypropylene thermoplastic composites |
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Authors: | MH Akonda CA LawrenceBM Weager |
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Affiliation: | a Tilsatec Advanced Materials, Tilsatec Ltd., Wakefield, UK b Centre for Technical Textiles, University of Leeds, Leeds, UK c NetComposites Ltd., Broom Business Park, Chesterfield, UK |
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Abstract: | Comingled carbon fibre (CF)/polypropylene (PP) yarns were produced from chopped recycled carbon fibres (reCF) (20 mm in length, 7-8 μm diameter) blended with matrix polypropylene staple fibres (60 mm in length, 28 μm diameter) using a modified carding and wrap spinning process. Microscopic analysis showed that more than 90% of the reCF were aligned along the yarn axis. Thermoplastic composite test specimens fabricated from the wrap-spun yarns had 15-27.7% reCF volume content. Similar to the yarn, greater than 90% of the reCF comprising each composite sample made, showed a parallel alignment with the axis of the test specimens. The average values obtained for tensile, and flexural strengths were 160 MPa and 154 MPa, respectively for composite specimens containing 27.7% reCF by volume. It was concluded that with such mechanical properties, thermoplastic composites made from recycled CF could be used as low cost materials for many non-structural applications. |
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Keywords: | A Carbon fibres A Recycling A Yarn B Mechanical properties |
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