Development of energy harvesting piezoelectric sensors based on electrospun polyvinylidene fluoride/aliphatic hyperbranched polyester (Gen-1) (80/20) blend
| Autor: | M. Shamim Reza, P. Sathiyanathan, D. Manjula Dhevi, P. Lakshmi Praba, Arun Anand Prabu, Hongdoo Kim, R. Gunasekhar |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Materials science Fabrication Piezoelectric sensor 02 engineering and technology Polymer 021001 nanoscience & nanotechnology 01 natural sciences Polyvinylidene fluoride Piezoelectricity Electrospinning Crystallinity chemistry.chemical_compound chemistry 0103 physical sciences Composite material 0210 nano-technology Energy harvesting |
| Zdroj: | Materials Today: Proceedings. 47:914-920 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2021.04.579 |
| Popis: | Many research groups around the world are working towards enhancing the β-crystallinity content (%) in polyvinylidene fluoride (PVDF) by blending with other polymers. The aim of this study is to electrospin (i). neat PVDF and (ii) PVDF/aliphatic hyperbranched polyester of 1st generation (HBP-G1) blend (80/20 w/w) and their piezoelectric sensor measurement studies. Aliphatic HBP-G1 used in this study was synthesized and characterized using spectral and thermal measurements. Further, electrospinning of neat PVDF and PVDF/HBP-G1 (80/20 w/w) blend was carried out under controlled conditions and their electrospun nanoweb samples were used in the fabrication of piezoelectric sensors and studied for their piezoelectric characteristics. A customized dynamic pressure instrument was used to measure the output peak-to-peak voltage (Vp-p) signals which were transferred to the preamplifier. Compared to neat PVDF (Vp-p = +0.95 V), the PVDF/HBP-G1 (80/20) blend sample exhibited higher Vp-p (+1.67 V), which is an evidence that the incorporation of HBP (20 wt-%) has a significant contribution in enhancing the energy harvesting efficiency of PVDF based piezoelectric sensors. The reaction mechanism behind this crystallinity enhancement is analyzed in-depth and the results are reported in detail. |
| Databáze: | OpenAIRE |
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