Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

Wan, Chaoying; Bowen, Chris R.

doi:10.1039/c6ta09590a

Cited by 452 publications

(349 citation statements)

References 252 publications

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“…Polymer blends are now receiving substantial attention in the research field for their wide applications in energy harvesting and storage sectors, because of their light weight, flexibility, and volume efficient electrical elements, needed for implanted passive technologies and others. The compatibility of PVDF with various polar polymers like poly(vinyl methyl ketone) (PVMK), poly(tetramethylene adipate) (PTMA), poly( N ‐methylethylenimine) (PME), poly( N,N ,‐dimethylacrylamide) (PDMA), poly( N ‐vinyl‐2‐pyrrolidone) (PVP), poly(methyl methacrylate) (PMMA), poly(vinyl acetate) (PVAc), poly(ethyl methacrylate) (PEMA), poly(1,4‐butylene succinate) (PBS), Polyamide (PA11 and PA6) helps in facilitating the formation of polar β‐ and γ‐phase in PVDF by forming intermolecular interactions …”

Section: Piezoelectric Polymers: a Productive Alternative To Piezo‐cementioning

confidence: 99%

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Mishra

Unnikrishnan

Nayak

et al. 2018

Macro Materials & Eng

346

293

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Polymeric piezoelectric composites for energy harvesting applications are considered a significant research field which provides the convenience of mechanical flexibility, suitable voltage with sufficient power output, lower manufacturing cost, and rapid processing compared to ceramic‐based composites. This review focuses majorly on the basic theory and principles behind piezoelectric energy harvesting (PEH) devices, followed by specified materials used for the different devices. Different structural configurations associated with fabrication of PEH devices are discussed in detail along with their major advantages and drawbacks. Numerous classes of piezoelectric polymers such as polyvinylidene fluoride, polylactic acid, cellulose, polyamides, polyurea, polyurethanes, and their composites used for energy harvesting applications as a productive alternative of lead‐based piezo‐ceramics, are extensively addressed and explored. Additionally, current global and Indian scenarios associated with PEH devices, major challenges associated with them, and the future perspective of such devices are also reported in this review.

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Section: Piezoelectric Polymers: a Productive Alternative To Piezo‐cementioning

confidence: 99%

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Mishra

Unnikrishnan

Nayak

et al. 2018

Macro Materials & Eng

346

293

View full text Add to dashboard Cite

show abstract

“…Flexible and lightweight piezoelectric polymers have proven their capacity for use in energy‐scavenging applications, particularly as a part of small integrated devices . Compared to ceramic materials, such as lead zirconate titanate (PZT) or quartz, piezoelectric polymers can provide a higher electromechanical energy conversion rate with lower piezoelectricity.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning of poly(γ‐benzyl–α,L‐glutamate) microfibers for piezoelectric polymer applications

Nguyen

Moon

2018

J of Applied Polymer Sci

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One of the latest developments in the field of piezoelectric polymers is the use of poly(γ‐benzyl‐α,L‐glutamate) (PBLG), a poly(amino acid) that can be poled along its α‐helical axis and fabricated into thermally stable piezoelectric microfibers via electrospinning. This study demonstrates a method for improving the piezoelectricity of electrospun PBLG microfibers by controlling the orientation of fibers using a method based on a concentrated electric field. The piezoelectricity is verified via customized quasi‐static and dynamic measurement methods, while the correlation between fiber alignment and the piezoelectric constant, d33, in the longitudinal mode of the electrospun PBLG fibers is investigated. When the level of alignment was varied from 50% to 90%, the piezoelectric constant increased linearly, showing a maximum d33 of 27 pC N−1 and a maximum force sensitivity of 65 mV N−1 at peak alignment. A fabricated flexible prototype based on electrospun PBLG fibers provides a new solution for the use of PBLG fibers in wearable energy harvesters or composites based on piezoelectric polymer fibers. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46440.

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“…Both the α and β phases are observed in the spectra. The diffraction peaks at 2θ = 18.5°, 20.3°, and 39.1° indicate the α phase, while the peaks at 2θ = 20.7° and 36.4° indicate the β phase . The crystallinity of PVDF in the films and the fraction of β phase [ F (β)] were calculated using Jade 9 software (Materials Data, Inc., Livermore, California) via self‐convolution peak fitting of the XRD spectra by eqs.…”

Section: Resultsmentioning

confidence: 99%

Modified dielectric properties of poly(vinylidene fluoride) via 2S fraction of soy protein

Zheng

2018

J of Applied Polymer Sci

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Soy protein, as a naturally available resource, has been widely studied as a functional material. Major 7S and 11S fractions of soy protein have drawn the most attention. In contrast, the 2S fraction, a component with low molecular weight, has rarely been explored in material applications. This study investigated the 2S fraction of soy protein as a functional modifier to tune the dielectric properties of poly(vinylidene fluoride) (PVDF). It is found that 2S protein could efficiently modify the crystallinity and crystal phases of PVDF, depending on the concentration of 2S protein. The variation of crystal structures and hydrophobic PVDF–2S interaction led to remarkably altered dielectric properties of PVDF/2S films, evaluated by both ferroelectric hysteresis and impedance analyses. Dielectric polarization of PVDF/2S films was enhanced as the concentration of 2S protein increased; meanwhile, high 2S protein content led to high hysteresis loss, which should be related to the increased electrical conductivity of PVDF/2S films. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46882.

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Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

Abstract: Energy harvesting exploits ambient sources of energy such as mechanical loads, vibrations, human motion, waste heat, light or chemical sources and converts them into useful electrical energy.

Cited by 452 publications

References 252 publications

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Electrospinning of poly(γ‐benzyl–α,L‐glutamate) microfibers for piezoelectric polymer applications

Modified dielectric properties of poly(vinylidene fluoride) via 2S fraction of soy protein

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