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Title: The upcycling of post-industrial PP/PET waste streams through in-situ microfibrillar preparation

Post-industrial plastic waste streams can be re-used as secondary material streams for polymer processing by extrusion or injection moulding. One of the major commercially available waste stream contains polypropylene (PP) contaminated with polyesters (mostly polyethylene tereftalate - PET). An important practical hurdle for the direct implementation of this waste stream is the immiscibility of PP and PET in the melt, which leads to segregation within the polymer structure and adversely affects the reproducibility and mechanical properties of the manufactured parts. It has been indicated in literature that the creation of PET microfibrils in the PP matrix could undo these drawbacks and upcycle the PP/PET combination. Within the current research, a commercially available virgin PP/PET was evaluated for the microfibrillar preparation. The mechanical (tensile and impact) properties, thermal properties and morphology of the composites were characterized at different stages of the microfibrillar preparation.
Authors:
; ;  [1]
  1. Centre for Polymer and Materials Technologies (CPMT), Department of Materials Science and Engineering, Ghent University, Technologiepark 915, 9052 Zwijnaarde (Belgium)
Publication Date:
OSTI Identifier:
22494361
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1695; Journal Issue: 1; Conference: GT70 international conference on polymer processing with resulting morphology and properties: Feet in the present and eyes at the future, Salerno (Italy), 15-17 Oct 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; EXTRUSION; INJECTION; MATERIALS RECOVERY; MECHANICAL PROPERTIES; MOLDING; MORPHOLOGY; PLASTICS; POLYESTERS; POLYETHYLENES; POLYPROPYLENE; SEGREGATION; THERMODYNAMIC PROPERTIES; WASTES