Implementation of a Recycled Polypropylene Homopolymer Material for Use in Additive Manufacturing

Jozef Dobránsky, Martin Pollák, Luboš Běhálek and Jozef Svetlík
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Jozef Dobránsky: Faculty of Manufacturing Technologies with a Seat in Presov, Technical University of Kosice, 080 01 Presov, Slovakia
Martin Pollák: Faculty of Manufacturing Technologies with a Seat in Presov, Technical University of Kosice, 080 01 Presov, Slovakia
Luboš Běhálek: Faculty of Mechanical Engineering, Technical University of Liberec, 460 01 Liberec, Czech Republic
Jozef Svetlík: Faculty of Mechanical Engineering, Technical University of Kosice, 040 01 Kosice, Slovakia

Sustainability, 2021, vol. 13, issue 9, 1-22

Abstract: The main objective of the presented scientific article is to define the mechanical properties of polypropylene homopolymer with a prescribed percentage ratio of recycled granulate. The chosen material is intended for injection molding and especially for the production of products made by additive technologies. Experimental verification of the mechanical properties was realized by testing samples produced with various concentrations of the recycled material. Experimental samples underwent tests to obtain the mechanical properties of the produced new material. These tests included rheological tests, tensile and flexural tests as well as and Charpy impact toughness tests. These mechanical tests were conducted according to ISO standards valid for the individual testing method. Testing methods were carried out using prescribed numbers of testing samples. The presented scientific article is also focused on changes in microstructures of testing materials in relation to the percentage ratio of recycled granulate. Recycled granulate of thermoplastic was not necessity for additional modifications.

Keywords: additive technologies; granulate; material properties; polymer; recycling (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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