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arXiv · 1706.08068

Solid-state-processing of d_PVDF

Jaime Martín·Dong Zhao·Thomas Lenz·Ilias Katsouras·Dago M. de Leeuw·Natalie Stingelin
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Abstract

Poly(vinylidene fluoride) (PVDF) has long been regarded as an ideal piezoelectric plastic because it exhibits a large piezoelectric response and a high thermal stability. However, the realization of piezoelectric PVDF elements has proven to be problematic, amongst others, due to the lack of industrially-scalable methods to process PVDF into the appropriate polar crystalline forms. Here, we show that fully piezoelectric PVDF films can be produced via a single-step process that exploits the fact that PVDF can be molded at temperatures below its melting temperature, i.e. via solid-state-processing. We demonstrate that we thereby produce d_PVDF, the piezoelectric charge coefficient of which is comparable to that of biaxially stretched d_PVDF. We expect that the simplicity and scalability of solid-state processing combined with the excellent piezoelectric properties of our PVDF structures will provide new opportunities for this commodity polymer and will open a range of possibilities for future, large-scale, industrial production of plastic piezoelectric films

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Jaime Martín, Dong Zhao, Thomas Lenz, Ilias Katsouras, Dago M. de Leeuw, Natalie Stingelin. 2017-06-25. Solid-state-processing of d_PVDF. https://arxiv.org/abs/1706.08068

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