Mechanical and piezoelectric characterizations of electrospun PVDF-nanosilica fibrous scaffolds for biomedical applications
| Autor: | S A Ahmad Ramazani, Saeed Ghaderi, Seyyed Arash Haddadi, Majed Amini |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Morphology (linguistics) Modulus 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity Electrospinning 0104 chemical sciences chemistry.chemical_compound chemistry Nanofiber Ultimate tensile strength Composite material 0210 nano-technology Fluoride Tensile testing |
| Zdroj: | Materials Today: Proceedings. 5:15710-15716 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2018.04.182 |
| Popis: | The effects of hydrophilic and hydrophobic nanosilica (SiO2) on the morphology, mean diameter distribution of fibers, mechanical and piezoelectric properties of poly (vinylidene fluoride) (PVDF) nanofibers were studies. We prepared Nanofibers by the electrospinning of PVDF solutions containing 1.5 wt.% both hydrophilic and hydrophobic nano-SiO2 loadings. Morphology and diameter distribution of the electrospun nanofibers were studied using field emission scanning electron microscopy (FE-SEM) analysis. Tensile test was used to study the effect of both types of nanosilica on the tensile strength, young’s modulus and strain at break. Piezoelectric characterization of the electrospun fibers were determined using calculation of the output voltages under certain loading force. Results showed that the fibers diameter and mechanical properties of the nanofibers increase in presence of hydrophilic SiO2 nanoparticles. Furthermore, the output voltages of the electrospun fibers demonstrated that both types of silica could considerably amplify electroactive properties of PVDF fibers. However, the results for PVDF fibers containing the hydrophilic silica nanoparticle were more highlighted. |
| Databáze: | OpenAIRE |
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