Flexible Ferroelectric BaTiO3 – PVDF Nanocomposites

Corral-Flores, V.; Bueno-Baqués, D.

doi:10.5772/16399

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…The application of twisted fibers in piezoelectric constructs has also been demonstrated in other publications. [128,129] He et al [127] used electrospinning and subsequent hot pressing to produce P(VDF- some additives like inorganic salt, [130] inorganic piezoelectric nanoparticles and nanowires, [118,[131][132][133] cellulose nanocrystals, [135] and multi-walled carbon nanotubes, [136] have been used into polymer solutions to form composites with attractive properties for energy harvesting devices.…”

Section: Energy Harvestersmentioning

confidence: 99%

Electrospinning Piezoelectric Fibers for Biocompatible Devices

Azimi

Milazzo

Lazzeri

et al. 2019

Adv Healthcare Materials

113

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The field of nanotechnology has been gaining great success due to its potential in developing new generations of nanoscale materials with unprecedented properties and enhanced biological responses. This is particularly exciting using nanofibers, as their mechanical and topographic characteristics can approach those found in naturally occurring biological materials. Electrospinning is a key technique to manufacture ultrafine fibers and fiber meshes with multifunctional features, such as piezoelectricity, to be available on a smaller length scale, thus comparable to subcellular scale, which makes their use increasingly appealing for biomedical applications. These include biocompatible fiber-based devices as smart scaffolds, biosensors, energy harvesters and nanogenerators for the human body. This paper provides a comprehensive review of current studies focused on the fabrication of ultrafine polymeric and ceramic piezoelectric fibers specifically designed for, or with the potential to be translated toward, biomedical applications. It provides an applicative and technical overview of the biocompatible piezoelectric fibers, with actual and potential applications, an understanding of the electrospinning process, and the properties of nanostructured fibrous materials, including the available modeling approaches. Ultimately, this This article is protected by copyright. All rights reserved. 3 review aims at enabling a future vision on the impact of these nanomaterials as stimuli-responsive devices in the human body.

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Section: Energy Harvestersmentioning

confidence: 99%

Electrospinning Piezoelectric Fibers for Biocompatible Devices

Azimi

Milazzo

Lazzeri

et al. 2019

Adv Healthcare Materials

113

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“…Piezoelectric ceramics such as lead zirconate-titanate and barium titanate (BTO) have been utilized for their excellent dipole moment, high electromechanical coupling coefficient, and high dielectric constant in PVDF matrix to enhance the piezoelectric property. [11][12][13][14] Among these ceramics, BTO is preferred as inorganic filler due to its environmentally friendly nature and ease in handling as a lead-free material. [15] However, piezoelectric ceramics require higher temperature for fabrication processing and can sometimes be too brittle to be used.…”

Section: Doi: 101002/mame201700229mentioning

confidence: 99%

3D Printing of BaTiO₃/PVDF Composites with Electric In Situ Poling for Pressure Sensor Applications

Kim

Torres

Villagrán

et al. 2017

Macro Materials & Eng

149

129

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This paper presents 3D printing of piezoelectric sensors using BaTiO3 (BTO) filler in a poly(vinylidene) fluoride (PVDF) matrix through electric in situ poling during the 3D printing process. Several conventional methods require complicated and time‐consuming procedures. Recently developed electric poling‐assisted additive manufacturing (EPAM) process paves the way for printing of piezoelectric filaments by incorporating polarizing processes that include mechanical stretching, heat press, and electric field poling simultaneously. However, this process is limited to fabrication of a single PVDF layer and quantitative material characterizations such as piezoelectric coefficient and β‐phase percentage are not investigated. In this paper, an enhanced EPAM process is proposed that applies a higher electric field during 3D printing. To further increase piezoelectric response, BTO ceramic filler is used in the PVDF matrix. It is found that a 55.91% PVDF β‐phase content is nucleated at 15 wt% of BTO. The output current and β‐phase content gradually increase as the BTO weight percentage increases. Scanning electron microscopy analysis demonstrates that larger agglomerates are formulated as the increase of BTO filler contents and results in increase of toughness and decrease of tensile strength. The highest fatigue strength is observed at 3 wt% BTO and the fatigue strength gradually decreases as the BTO filler contents increases.

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“…Variations in BaTiO 3 concentration are responsible for the observed shifts in FTIR intensity from the pure PVDF polymer over the composition range. Using eqn (8) proposed by Gregorio & Cestari, 55–57 the percentage of the β-phase inside the crystalline area ( F β ) may be quantitatively estimated from the absorbance values acquired from FTIR observations.Where A β and A α are the absorbance values of the α and β-phases at 761 cm −1 and 840 cm −1 , respectively, where ( K α = 6.1 × 104 cm 2 mol −1 ) and ( K β = 7.7 × 104 cm 2 mol −1 ) are the absorption coefficients at the corresponding wavenumbers, the ratio K β / K α is constant and equals to 1.3. Table 2 shows the β-phase fraction (%) of the samples containing PVDF in this study.…”

Section: Resultsmentioning

confidence: 99%

Section: Materials Advances Papermentioning

confidence: 99%

Structural and dielectric characterization of synthesized nano-BSTO/PVDF composites for smart sensor applications

Hussein,

Saafan,

Abosheiasha

et al. 2023

Mater. Adv.

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Flexible Ferroelectric BaTiO3 – PVDF Nanocomposites

Cited by 6 publications

References 34 publications

Electrospinning Piezoelectric Fibers for Biocompatible Devices

Electrospinning Piezoelectric Fibers for Biocompatible Devices

3D Printing of BaTiO₃/PVDF Composites with Electric In Situ Poling for Pressure Sensor Applications

Structural and dielectric characterization of synthesized nano-BSTO/PVDF composites for smart sensor applications

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Flexible Ferroelectric BaTiO3 – PVDF Nanocomposites

Cited by 6 publications

References 34 publications

Electrospinning Piezoelectric Fibers for Biocompatible Devices

Electrospinning Piezoelectric Fibers for Biocompatible Devices

3D Printing of BaTiO3/PVDF Composites with Electric In Situ Poling for Pressure Sensor Applications

Structural and dielectric characterization of synthesized nano-BSTO/PVDF composites for smart sensor applications

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Product

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3D Printing of BaTiO₃/PVDF Composites with Electric In Situ Poling for Pressure Sensor Applications