title: Application of waste bulk moulded composite (BMC) as a filler for isotactic polypropylene composites.
abstract: The aim of this study was to produce isotactic polypropylene based composites filled with waste thermosetting bulk moulded composite (BMC). The influence of BMC waste addition (5, 10, 20 wt%) on composites structure and properties was investigated. Moreover, additional studies of chemical treatment of the filler were prepared. Modification of BMC waste by calcium stearate (CaSt) powder allows to assess the possibility of the production of composites with better dispersion of the filler and more uniform properties. The mechanical, processing, and thermal properties, as well as structural investigations were examined by means of static tensile test, Dynstat impact strength test, differential scanning calorimetry (DSC), wide angle X-ray scattering (WAXS), melt flow index (MFI) and scanning electron microscopy (SEM). Developed composites with different amounts of non-reactive filler exhibited satisfactory thermal and mechanical properties. Moreover, application of the low cost modifier (CaSt) allows to obtain composites with better dispersion of the filler and improved processability.
authors.affiliation: Polymer Processing Division, Institute of Materials Technology, Poznań University of Technology, Piotrowo 3, 61-138 Poznań, Poland.
authors.forename: Mateusz
authors.initials: M
authors.lastname: Barczewski
authors.affiliation: Polymer Processing Division, Institute of Materials Technology, Poznań University of Technology, Piotrowo 3, 61-138 Poznań, Poland.
authors.forename: Danuta
authors.initials: D
authors.lastname: Matykiewicz
authors.affiliation: Polymer Processing Division, Institute of Materials Technology, Poznań University of Technology, Piotrowo 3, 61-138 Poznań, Poland.
authors.forename: Jacek
authors.initials: J
authors.lastname: Andrzejewski
authors.affiliation: Faculty of Chemical Technology and Engineering, University of Science and Technology in Bydgoszcz, Seminaryjna 3, 85-326 Bydgoszcz, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Skórczewska
keywords: BMC; Composites; Mechanical properties; Polypropylene; Recycling; Thermosetting waste management