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One-step solvent evaporation-assisted 3D printing of piezoelectric PVDF nanocomposite structures

Sampada Bodkhe, Gabrielle Turcot, Frédérick Gosselin, Daniel Therriault

Article (2017)

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Abstract

The development of a 3D printable material system, possessing inherent piezoelectric properties, to fabricate integrable sensors in a single-step printing process without poling is of importance to the creation of a wide variety of smart structures. Here, we study the effect of addition of barium titanate nanoparticles in nucleating piezoelectric β-polymorph in 3D printable polyvinylidene fluoride (PVDF) and fabrication of the layer-by-layer and self-supporting piezoelectric structures at micro to millimeter scale by solvent evaporation-assisted 3D printing at room temperature. The nanocomposite formulation, obtained after a comprehensive investigation of composition and processing techniques, possesses a piezoelectric coefficient, d31, of 18 pC N-1 which is comparable to typical poled and stretched commercial PVDF film sensors. A 3D contact sensor that generates up to 4 V upon gentle finger taps demonstrates the efficacy of the fabrication technique. Our one-step 3D printing of piezoelectric nanocomposites can form ready-to-use complex-shaped, flexible and lightweight piezoelectric devices. When combined with other 3D printable materials, they could serve as stand-alone or embedded sensors in aerospace, biomedicine and robotic applications.

Uncontrolled Keywords

3D printing, barium titanate nanoparticles, piezoelectric, polyvinylidene fluoride, sensors

Subjects: 1700 Design and manufacturing > 1702 Advanced manufacturing
2000 Materials science and technology > 2007 Composites
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, Canada Research Chair
PolyPublie URL: https://publications.polymtl.ca/10416/
Journal Title: ACS Applied Materials & Interfaces (vol. 9, no. 24)
Publisher: ACS
DOI: 10.1021/acsami.7b04095
Official URL: https://doi.org/10.1021/acsami.7b04095
Date Deposited: 04 Aug 2022 10:46
Last Modified: 19 Nov 2022 03:48
Cite in APA 7: Bodkhe, S., Turcot, G., Gosselin, F., & Therriault, D. (2017). One-step solvent evaporation-assisted 3D printing of piezoelectric PVDF nanocomposite structures. ACS Applied Materials & Interfaces, 9(24), 20833-20842. https://doi.org/10.1021/acsami.7b04095

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