Influence of Iron Nanoparticles on the Shape Memory Effect of PVA
Abstract
Abstract - Shape memory polymers (SMP) can be used in numerous applications, for example in medical engineering, control technology, or in the automotive industry. Various triggers can be used to "remember" a programmed shape, such as temperature, pH value, humidity or light. One example of SMP is polyvinyl alcohol (PVA), which is characterised by biocompatibility, high hydrophilicity and non-toxicity as well as efficient shape memory behaviour. PVA reacts to the stimulus of temperature. In this work, the influence of incorporated nanoparticles on the shape memory effect of PVA will be investigated. For this purpose, the glass transition temperature of PVA containing different iron nanoparticles is determined and compared by means of Differential Scanning Calorimetry (DSC). In addition to the impact of the integrated nanoparticles on the switching temperature, consideration is also given to the quality of the resetting characteristics linked with the shape memory effect. These studies employ thermomechanical analysis as a tool to gain insights into this phenomenon. The inclusion of iron nanoparticles has been observed to result in a slight alteration of the switching temperature, while significantly influencing the shape memory effect and reducing the strain recovery rate by approximately 15%. The strain fixity rate simultaneously increases by approximately 50%. However, the size and structure of the iron nanoparticles showed no discernible impact on the observed phenomenon.
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| Titel | Influence of Iron Nanoparticles on the Shape Memory Effect of PVA |
|---|---|
| Verlag | INFLUENCE OF IRON NANOPARTICLES ON THE SHAPE MEMORY EFFECT OF PVA |
| Herausgeber | International Journal of Mechatronics and Applied Mechanics 2025, Issue 19, Vol. 1, |
| Band | 2025, Issue 19, Vol. 1 |
| Verfasser | Anette Lang |
| Veröffentlichungsdatum | 01.01.2025 |
| Zitation | Lang, Anette (2025): Influence of Iron Nanoparticles on the Shape Memory Effect of PVA. 2025, Issue 19, Vol. 1. DOI: 10.17683/ijomam/issue19 |