Article
Version 1
This version is not peer-reviewed
Effect of Mis-Sorting on the Mechanical Properties of Recycled Polypropylene
and
*
Version 1
: Received: 4 July 2024 / Approved: 4 July 2024 / Online: 4 July 2024 (10:20:24 CEST)
How to cite: Dawoud, M.; Taha, I. Effect of Mis-Sorting on the Mechanical Properties of Recycled Polypropylene. Preprints 2024, 2024070420. https://doi.org/10.20944/preprints202407.0420.v1 Dawoud, M.; Taha, I. Effect of Mis-Sorting on the Mechanical Properties of Recycled Polypropylene. Preprints 2024, 2024070420. https://doi.org/10.20944/preprints202407.0420.v1
Abstract
The effect of contamination of polypropylene (PP) with selected polymers is studied to simulate the effect of mis-sorting in recycling streams. Polystyrene (PS), polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS) and polylactic acid (PLA) were compounded with PP at different concentrations varying between 3 and 10%. Infrared spectroscopy proved the absence of chemical bonds between the constituents. The samples for mechanical testing were injection moulded and further tested for their tensile and impact properties. Critical behaviour was induced by the introduction of a weld line as a result of the application of multiple gating points during injection moulding. Results generally show the applicability of PP mixtures within the investigated range of inclusions, without much sacrifice in mechanical performance. However, in the case of ABS and PLA, more care should be taken when designing complex parts with weld lines, due to reduced toughness.
Keywords
Recycling; polypropylene; mis-sorting; strength; stiffness; toughness
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
