Properties of polyamide nanofibers treated by UV-A radiation
| Autor: | Václav Švorčík, Monika Zemanová, Pavel Prosr, Zdeňka Kolská, Petr Slepička, R. Polanský, Petr Ryšánek |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Morphology (linguistics) Mechanical Engineering 02 engineering and technology Surface finish Adhesion Radiation 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics medicine.disease_cause 01 natural sciences 0104 chemical sciences Crystallinity Chemical engineering Mechanics of Materials Nanofiber Polyamide medicine General Materials Science sense organs skin and connective tissue diseases 0210 nano-technology Ultraviolet |
| Zdroj: | Materials Letters. 214:264-267 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2017.12.029 |
| Popis: | Nonwoven polyamide nanofibers have extensive applications in a wide range of areas. However, a general problem of polyamide nanofiber is a poor adhesion to other materials or to microorganisms. In this work, we exposed nonwoven polyamide nanofibers to ultraviolet, long-wave (UV-A) radiation for different times and studied the changes in surface and bulk properties by available techniques. Obtained results confirmed the changes in surface chemistry, polarity, charge, roughness and morphology. Also changes in crystallinity portion and alpha and gamma phases were observed. We confirmed that the UV-A radiation can be used for surface activation and adhesion improvement. These changes are more visible and significant after short radiation time (till 10 min). |
| Databáze: | OpenAIRE |
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