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Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications

Rui Tao, Jiahao Shi, Mohammad Rafiee, Abdolhamid Akbarzadeh, Daniel Therriault

Article (2022)

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Fused filament fabrication (FFF) of piezoelectric polymer polyvinylidene fluoride (PVDF) provides a simple manufacturing technique for the fabrication of lead-free piezoelectric devices compared to the traditional manufacturing methods, such as large-scale film extrusion and solution casting. Here, we investigate the effects of the stretching and poling parameters on the enhancement of piezoelectric performance of the printed PVDF films. The stretched and polarized PVDF films with dimensions of 40 × 20 × 0.06 mm (length × width × thickness) possess a piezoelectric charge coefficient (d33) of 7.29 pC N−1 and a fraction of β phase (Fβ) of 65% at a stretching ratio (R) of 4 after being polarized under an electric field of 30 V μm−1. The resulting d33 of the fabricated PVDF films has been substantially enhanced by ∼10–100 times higher than the related reported values of the FFF printed PVDF films. The fabricated PVDF films are capable of detecting compression (d33) and vibration (d31). By blowing four piezoelectric films connected in parallel for 3 min, the energy stored in the capacitor can make a LED blink. Our fabricated piezoelectric PVDF films could be used in the field of pressure sensing, vibration sensing and energy harvesting applications.
Subjects: 1700 Design and manufacturing > 1702 Advanced manufacturing
2000 Materials science and technology > 2001 Materials structure, properties and testing
2000 Materials science and technology > 2010 Thin films/interfaces
2100 Mechanical engineering > 2100 Mechanical engineering
Department: Department of Mechanical Engineering
Research Center: CREPEC - Center for Applied Research on Polymers and Composites
LM2 - Laboratory for Multi-scale Mechanics
Funders: CRSNG/NSERC, Discovery program, Department of National Defence (DND), China Scholarship Council (CSC)
Grant number: RGPIN-4566-2018, DGDND-2018-00011
PolyPublie URL: https://publications.polymtl.ca/10437/
Journal Title: Materials Advances (vol. 3, no. 12)
Publisher: Royal Society of Chemistry
DOI: 10.1039/d2ma00072e
Official URL: https://doi.org/10.1039/d2ma00072e
Date Deposited: 23 Aug 2022 10:06
Last Modified: 11 Nov 2022 13:29
Cite in APA 7: Tao, R., Shi, J., Rafiee, M., Akbarzadeh, A., & Therriault, D. (2022). Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications. Materials Advances, 3(12), 4851-4860. https://doi.org/10.1039/d2ma00072e


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