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Influence of glass fibers on the processability and mechanical properties of PP homopolymer for fused filament fabrication (FFF)

Title data

Utz, Julia ; Geis, Nico ; Baur, Maximilian ; Ruckdäschel, Holger:
Influence of glass fibers on the processability and mechanical properties of PP homopolymer for fused filament fabrication (FFF).
In: AIP conference proceedings. Vol. 2607 (2023) Issue 1 . - 120009.
ISSN 0094-243X
DOI: https://doi.org/10.1063/5.0136659

Official URL: Volltext

Abstract in another language

Polypropylene (PP) has been used very little as additive manufacturing material so far. Commercial filaments often consist of copolymers or blends and thus do not achieve the mechanical stability of PP homopolymers. Therefore, the topic of this work is the investigation of PP homopolymers and their glass fiber (GF) reinforced compounds regarding the processability in the fused filament fabrication (FFF) process and the mechanical properties of printed parts. A PP homopolymer was used as neat material and as compounds with 10 or 20 wt% of short or long GF. All materials were extruded into filaments and printed using FFF. The mechanical properties of the printed samples were compared to injection-molded ones. The study showed that filaments with a suitable mean diameter could be produced from all compounds. Good printability was demonstrated for neat PP and the short GF reinforced compounds. Concerning mechanical properties, an excellent welding quality of the neat material led to strength and stiffness in the range of the injection-molded reference. A slightly lower welding quality and the presence of pores in the GF reinforced parts resulted in lower mechanical values. Overall, the work showed a high potential of PP homopolymer compounds regarding processability and mechanical properties.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Polymer Materials
Research Institutions
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 06 Jul 2024 21:00
Last Modified: 08 Jul 2024 07:06
URI: https://eref.uni-bayreuth.de/id/eprint/89912