Paper Titles

Preface and Committee

Synthesis of Strontium Substituted Hydroxyapatite through Different Precipitation Routes
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Recycling of PA-12 in Additive Manufacturing and the Improvement of its Mechanical Properties
p.9

Hybrid Graphene/Alumina Nanofibers for Electrodonductive Zirconia
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Preparation of Nanocellulose Using Ammonium Persulfate and Method’s Comparison with other Techniques
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Wood-Based Biocomposites: Mechanical Processing, Physical and Biological Properties
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Fabrication of NiO/NiAl₂O₄ Nanofibers by Combustion Method
p.31

Hybrid Syntactic Foams of Metal – Fly Ash Cenosphere – Clay
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Screen Elements Made of Perforated Steel Tape and their Application for Shielding Electromagnetic Fields
p.41

HomeKey Engineering MaterialsKey Engineering Materials Vol. 674Recycling of PA-12 in Additive Manufacturing and...

Recycling of PA-12 in Additive Manufacturing and the Improvement of its Mechanical Properties

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Abstract:

This study explores possible ways to make Additive Manufacturing (AM) a cradle-to-cradle process, that is, use the leftover from one process as the raw material for another process. The main goal of this study is to develop a set of new polymeric blends with innovative properties, suitable for using in 3-D printing of prosthetic limbs using Fused Deposition Modeling (FDM) technology. Sustainable acting is achieved by reusing polymeric material left over from Selective Laser Sintering (SLS) processes for making raw material for FDM processes. Test specimens of polyamide 12 (PA-12) in its virgin form and used- , un-sintered form alongside specimens of used PA blended with TPU, aramid, or graphite, were produced in a micro-injection moulding machine and then tested for their mechanical properties. This paper provides information about the differences in mechanical characteristics of these different material blends. An unexpected but positive finding was that the differences between virgin and recycled PA-12 are insignificant. The aforementioned additives influenced PA-12 by producing specimens that responded with predictable characteristics which is a significant accomplishment as it lays the groundwork for the next stages of the project.

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Periodical:

Key Engineering Materials (Volume 674)

Pages:

9-14

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.674.9

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Online since:

January 2016

Authors:

Piret Mägi*, Andres Krumme, Meelis Pohlak

Keywords:

Additive Manufacturing, Fused Deposition Modeling, Material Recycling, Polyamide Composite, Polyamide-12, Prostheses, Selective Laser Sintering

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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