Fabrication of phase-change core/shell nanofibers based on a eutectic fatty acid mixture to control body temperature fluctuations
| Autor: | Ghazaleh Chizari Fard, Nina Heidarzadeh, Laleh Maleknia, Behrouz Hemmatian |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Fabrication Materials science Fatty acid 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Lauric acid 0104 chemical sciences Palmitic acid chemistry.chemical_compound Nylon 6 chemistry Chemical engineering Nanofiber General Materials Science 0210 nano-technology Cooling down Eutectic system |
| Zdroj: | Materials Chemistry and Physics. 245:122738 |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2020.122738 |
| Popis: | A sustainable eutectic mixture of two fatty acids, i.e. Lauric acid (LA) and Palmitic acid (PA), was produced as Phase Change Materials (PCMs) to control body temperature fluctuations. Based on thermodynamic calculations and related experimental analyses, the mass ratio of the mixture was chosen as LA:PA = 69:31. A core-shell structure was prepared through coaxial electrospinning, so as to prevent the leakage of PCM during phase change from the solid state to liquid one. Nylon 6 covered the core as the shell of the prepared nanofiber. The optimized nanofibers were obtained with the diameter of 152.7 nm. The produced PCM possessed an onset melting temperature of 32.17 °C, which was close to the normal body temperature (i.e., 37 °C). Thermal performance of PCM in the nanofiber core-shell structure analyzed by an image processing technique showed that the sample containing PCMs exhibited enhanced thermal properties during the cooling down process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect