Piezo-electric properties of polypropylene laminates with a non-woven layer

Kacprzyk, R.; Kisiel, Anna

doi:10.1016/j.elstat.2012.11.033

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…In the composite, the kaolin as a part of the filler also plays the role of a nucleating agent. 12,14 Films destined for electrets must show high volume resistivity to prevent electret discharge. All tested PP films were good insulators with resistivity of $10 17 X m. The PVDF volume resistivity of $10 15 Xm was lower (Fig.…”

Section: Discussionmentioning

confidence: 99%

Increase of Piezoelectric Constant and Thermal Durability of Polypropylene Electret by Introducing SiO2 and Kaolin Filler and Creating a Cellular Structure

Klimiec

Królikowski

Machnik

et al. 2015

Journal of Elec Materi

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This article presents a method for preparing and testing the piezoelectric properties and stability of cellular electret based on polypropylene (PP). Introducing 5% mineral filler as a mixture of crystalline silica, colloidal silica, and kaolin to isotactic polypropylene followed by a film stretching process resulted in the formation of a composite cellular structure. To manufacture electrets, the films were polarized at a constant electric field in the range from 100 V/lm to 125 V/lm, in a climatic chamber heated up to 80°C. The durability of the electrets was determined using thermostimulated discharge currents and approximate calculations of depolarization process activation energy. For electrets made of cellular films, the depolarization temperature T m at which the density of the discharge current assumes the highest value was $108°C and the activation energy was 6.25 eV. The response of the polarized composite film to mechanical stress expressed as the piezoelectric constant d 33 was about 3 times higher than for a-PP film of the prevailing atactic phase and poly(vinylidene fluoride) film without a cellular structure. In the range of stress of 1 kPa to 120 kPa it was 135 pC/N for lower stresses and 60 pC/N for higher stresses.

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Section: Discussionmentioning

confidence: 99%

Increase of Piezoelectric Constant and Thermal Durability of Polypropylene Electret by Introducing SiO2 and Kaolin Filler and Creating a Cellular Structure

Klimiec

Królikowski

Machnik

et al. 2015

Journal of Elec Materi

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“…16,25 In this study, we present a generalized theory for the actuation properties of charged multilayer films by combining elasticity theory with a phenomenological description of electrostatics. Our research broadens the study of Tuncer et al 22 and Kacprzyk et al 30,31 to the case of a multilayer film for which we carry out a systematic analysis of the piezoelectric charge (d 33 ) and voltage (g 33 ) coefficients under applied voltages and pressures. We consider a composite multilayer with a 2-2 connectivity, where one layer is an active piezoelectric layer and the second layer is a passive dielectric elastomer layer.…”

Section: Introductionmentioning

confidence: 85%

Analysis of the actuation properties of charged multilayer films

Allahyarov

Löwen

Zhu

2015

Journal of Applied Physics

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Combining elasticity theory with electrostatics, we calculate the actuation response of a charged multilayer film, which is composed of consecutively stacked piezoelectric and polymeric elastomer layers, with respect to an applied voltage. Depending on the individual material properties and polarity of the applied voltage, we show that the composite multilayer can exhibit actuation properties which are considerably better than the response of the individual constituents. It is also shown that there is a window for applied voltages within which the thickness of the composite film expands, a condition that cannot be achieved in single layer films. In particular, we apply and evaluate our theory for various piezoelectric and dielectric elastomers. The results obtained will be helpful to develop tailored composite materials with specific actuation characteristics.

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Piezoelectric properties of non-uniform polymeric structures under static load

Kacprzyk

2016

Phase Transitions

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Piezo-electric properties of polypropylene laminates with a non-woven layer

Cited by 7 publications

References 6 publications

Increase of Piezoelectric Constant and Thermal Durability of Polypropylene Electret by Introducing SiO2 and Kaolin Filler and Creating a Cellular Structure

Increase of Piezoelectric Constant and Thermal Durability of Polypropylene Electret by Introducing SiO2 and Kaolin Filler and Creating a Cellular Structure

Analysis of the actuation properties of charged multilayer films

Piezoelectric properties of non-uniform polymeric structures under static load

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