Low-Cost, Large-Area, Stretchable Piezoelectric Films Based on Irradiation-Crosslinked Poly(propylene)

Zhang, Xiaoqing; Zhang, Xinwu; You, Qiong; Sessler, G. M.

doi:10.1002/mame.201300161

Cited by 39 publications

(66 citation statements)

References 16 publications

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“…The relation between the elastic modulus or elastic stiffness (c 33 ) in the surface normal direction (film thickness direction) and the electromechanical d 33 coefficient can be calculated as 14,18,41,45 :…”

Section: Relation Between the Piezoelectric D 33 Coefficient And The mentioning

confidence: 99%

Cellular Polymer Ferroelectret: A Review on Their Development and Their Piezoelectric Properties

et al. 2016

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Because of their ability to show ferroelectret behavior when exposed to an external electric field, cellular polymers have been recently considered for ferroelectret applications. These cellular polymer films can be produced by stretching or foaming, but depending on the application and conditions, different polymers, such as polypropylene (PP), poly(ethylene terephthalate), poly(ethylene naphthalate), poly(tetrafluoro ethylene), cross-linked PP, and some cyclo-olefines, have been considered. Nevertheless, cellular PP was the most investigated material because of its outstanding properties such as high piezoelectric d 33 coefficient, flexibility, good fatigue resistance, good charge trapping properties, and low cost. In this review, recent advances related to the materials used for ferroelectret applications and their processing are discussed. The effect of different parameters such as pressure, electrical breakdown strength of the gas phase, presence of fillers, and service temperature on the d 33 coefficient is presented and discussed. C

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Section: Relation Between the Piezoelectric D 33 Coefficient And The mentioning

confidence: 99%

Cellular Polymer Ferroelectret: A Review on Their Development and Their Piezoelectric Properties

et al. 2016

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“…[7][8][9][10][11][12][13][14] Piezoelectrets are charged polymer foams exhibiting strong piezoelectric effects, small bulk density, flexibility or/and stretchability. 15,16 The quasistatic piezoelectric d 33 coefficients of piezoelectrets can be up to a few hundred pC/N in polypropylene (PP) films [17][18][19][20][21][22][23] and are of similar size or larger in some fluorocarbon polymer films, /ε 0 ε r (see also Sect. III), namely about 8 GPa −1 for PP compared with about 0.009 GPa −1 for PVDF.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9]12 Our prior studies indicate that, compared with normal cellular PP, electron irradiated polypropylene (IXPP) not only results in piezoelectrets with improved thermal stability of d 33 and better mechanical properties, 28 but also yields enhanced stretchability after proper modifications of the microstructure. 21 Therefore, it is of interest to explore the capability of energy harvesting from vibration by using IXPP piezoelectret films.…”

Section: Introductionmentioning

confidence: 99%

Energy harvesting from vibration with cross-linked polypropylene piezoelectrets

Zhang

Sessler

2015

AIP Advances

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Piezoelectret films are prepared by modification of the microstructure of polypropylene foam sheets cross-linked by electronic irradiation (IXPP), followed by proper corona charging. Young’s modulus, relative permittivity, and electromechanical coupling coefficient of the fabricated films, determined by dielectric resonance spectra, are about 0.7 MPa, 1.6, and 0.08, respectively. Dynamic piezoelectric d33 coefficients up to 650 pC/N at 200 Hz are achieved. The figure of merit (FOM, d33 ⋅ g33) for a more typical d33 value of 400 pC/N is about 11.2 GPa−1. Vibration-based energy harvesting with one-layer and two-layer stacks of these films is investigated at various frequencies and load resistances. At an optimum load resistance of 9 MΩ and a resonance frequency of 800 Hz, a maximum output power of 120 μW, referred to the acceleration g due to gravity, is obtained for an energy harvester consisting of a one-layer IXPP film with an area of 3.14 cm2 and a seismic mass of 33.7 g. The output power can be further improved by using two-layer stacks of IXPP films in electric series. IXPP energy harvesters could be used to energize low-power electronic devices, such as wireless sensors and LED lights.

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“…Such XPP films are flexible and even stretchable [13] .There are much research about to improve the d 33 coefficient but rarely d 31 and d 32 coefficients. Owing the values of d 31 and d 32 are too small, so many researchers always neglect it.…”

Section: Introductionmentioning

confidence: 97%

Low-Cost, Large-Area, Stretchable Piezoelectric Films Based on Irradiation-Crosslinked Poly(propylene)

Cited by 39 publications

References 16 publications

Cellular Polymer Ferroelectret: A Review on Their Development and Their Piezoelectric Properties

Cellular Polymer Ferroelectret: A Review on Their Development and Their Piezoelectric Properties

Energy harvesting from vibration with cross-linked polypropylene piezoelectrets

Mechanical and piezoelectric performance of cross-linked polypropylene films treated with extending

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