Meuchelböck, Johannes;
Peiffer, Carlo;
Walter, Lena;
Dippold, Marcel;
Munro, Peter;
Ruckdäschel, Holger;
(2024)
Influence of temperature on the compression properties of expanded thermoplastic polyurethane (ETPU).
Journal of Materials Science: Materials in Engineering
, 19
, Article 10. 10.1186/s40712-024-00149-9.
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Abstract
This study explores how expanded thermoplastic polyurethane (ETPU) responds to temperature and compression at various temperatures. Dynamic mechanical thermal analysis (DMTA) was used to understand the temperature influence at small deformations. To investigate the deformation behavior at different compression stages we employed in-situ CT measurements and 3D strain mapping. Through quasi-static compression tests at temperatures from − 50 to 120 °C, we determined the influence of temperature on compression modulus, elastic stress, stress at 50% deformation, densification, and energy absorption. Remarkably, ETPU demonstrates robust recovery after compression, particularly within the − 50 to 60 °C temperature range. Subsequent compression tests show consistent or even slightly increased compression properties, such as a 10% increase in energy absorption for samples previously tested at − 40 °C, indicating that ETPU can withstand prior exposure to different temperatures.
| Type: | Article |
|---|---|
| Title: | Influence of temperature on the compression properties of expanded thermoplastic polyurethane (ETPU) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1186/s40712-024-00149-9 |
| Publisher version: | https://doi.org/10.1186/s40712-024-00149-9 |
| Language: | English |
| Additional information: | © The Author(s), 2024. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Elastic polymer, Bead foam, Mechanical compression properties, Temperature influence, Material resilience |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10194981 |
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