We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Impact of Initial Cyclic Loading on Mechanical Properties and Performance of Nafion.
- Authors
Vokoun, David; Samal, Sneha; Stachiv, Ivo
- Abstract
Nafion possesses many interesting properties such as a high ion-conductivity, hydrophilicity, and thermal and chemical stability that make this material highly suitable for many applications including fuel cells and various (bio-)chemical and physical sensors. However, the mechanical properties of a Nafion membrane that are known to be affected by the viscoplastic characteristics of the material itself have a strong impact on the performance of Nafion-based sensors. In this study, the mechanical properties of Nafion under the cyclic loading have been investigated in detail. After cyclic tensile loading (i.e., maximum elongation about 25% at a room temperature and relative humidity about 40%) a time-dependent recovery comes into play. This recovery process is also shown being strain-rate dependent. Our results reveal that the recovery behavior weakens after performing several stress–strain cycles. Present findings can be of a great importance in future design of various chemical and biological microsensors and nanosensors such as hydrogen or glucose ones.
- Subjects
CYCLIC loads; NAFION; CHEMICAL detectors; FUEL cells; NANOSENSORS; IMPACT loads; IONIC conductivity
- Publication
Sensors (14248220), 2023, Vol 23, Issue 3, p1488
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23031488