Influence of Spinning Method on Shape Memory Effect of Thermoplastic Polyurethane Yarns

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

Shape memory polymers are gaining increasing attention, especially in the medical field, due to their ability to recover high deformations, low activation temperatures, and relatively high actuation stress. Furthermore, shape memory polymers can be applied as fiber-based solutions for the development of smart devices used in many fields, e.g., industry 4.0, medicine, and skill learning. These kind of applications require sensors, actors, and conductive structures. Textile structures address these applications by meeting requirements such as being flexible, adaptable, and wearable. In this work, the influence of spinning methods and parameters on the effect of shape memory polymer yarns was investigated, comparing melt and wet spinning. It is shown that the spinning method can significantly influence the strain fixation and generated stress during the activation of the shape memory effect. Furthermore, for wet spinning, the draw ratio could affect the stress conversion, influencing its efficiency. Therefore, the selection of the spinning process is essential for the setting of application-specific shape-changing properties.

Details

Original languageEnglish
Article number239
JournalPolymers
Volume15
Issue number1
Publication statusPublished - 3 Jan 2023
Peer-reviewedYes

External IDs

ORCID /0000-0002-2379-2245/work/159605080
ORCID /0000-0002-7440-9277/work/159606835
PubMed 36616589

Keywords

Keywords

  • fiber, melt/wet spinning, shape memory effect, shape memory polymer