Mukri, N.I. and Velayutham, T.S. and Abd Majid, Wan Haliza (2024) Uniaxially drawn poly (L-lactic acid)/ poly (vinylidene fluoride) polymer blend as a promising piezoelectric material: Hysteresis and resonance spectroscopy study. Journal of Molecular Structure, 1311. p. 138253. ISSN 0022-2860, DOI https://doi.org/10.1016/j.molstruc.2024.138253.
Full text not available from this repository.Abstract
This study explores the potential for piezoelectricity in a blend of polyvinylidene fluoride (PVDF) and poly-Llactic acid (PLLA) prepared using the solution casting method. Dielectric frequency measurements across a range of 102 to 106 Hz revealed piezoelectric resonance within a broader dielectric relaxation regime. Analysis of the resonance spectra for length and width vibrational modes enabled the determination of the piezoelectric tensor components of the PVDF/PLLA blend. The blend exhibited enhanced ferroelectric polarization reversal, remnant polarization, and coercive field compared to pristine PVDF samples. The piezoelectric constants d31 and d14 (d36 of the blend) were determined. Mechanical drawing and poling techniques were employed to generate multiple piezoelectric constants, allowing for efficient energy harvesting from various directions. This flexible blend offers promising prospects for versatile energy conversion applications.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya (UM.C/625/1/HIR/166) ; (PG090-2104A) |
| Uncontrolled Keywords: | Piezoelectric polymer; PVDF/PLLA; Energy harvesting |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 17 Sep 2024 00:59 |
| Last Modified: | 17 Sep 2024 00:59 |
| URI: | http://eprints.um.edu.my/id/eprint/45093 |
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