Recycling Thermoplastic Composites Using Lowshear Mixing: an Experimental Study on Complex
G. Vincent, ThermoPlastic composites Research Center, Enschede, The Netherlands
T.A. de Bruijn, ThermoPlastic composites Application Center, Enschede, The Netherlands
M.I. Abdul Rasheed, University of Twente, Enschede, The Netherlands
S. Wijskamp, ThermoPlastic composites Research Center, Enschede, The Netherlands
A recycling solution for thermoplastic composites has been implemented. It comprises the following steps: shredding the scraps into flakes of 20 mm size, melting and blending in to a dough, and subsequently compression moulding it into a part. The challenges are to process a carbon/PPS dough containing as high as 35 % of fibre by volume while enabling the manufacturing of thin parts with a large surface area including complex geometries.
Panels with various elements were moulded: ribs with a length over width ratio up to 4.5:1, thickness transitions and various types of rib crossings. The visual inspection on the moulded panels shows a globally homogeneous fibre distribution. Further analyses were carried out using optical microscopy and density measurements to distinguish the effect of mixing and moulding on part quality. The study resulted in drafting design guidelines for the manufacturing of complex parts with this process.
ITHEC 2018 Manuscript D5
Publication date: 05.04.2019
Manuscript D5 published in Conference Proceedings ITHEC 2018
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