New piezoelectric composites based on isotactic polypropylene filled with silicate

Kaczmarek, Halina; Królikowski, B.; Klimiec, Ewa; Kowalonek, Jolanta

doi:10.1007/s10854-016-6329-9

Cited by 20 publications

(35 citation statements)

References 31 publications

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“…Crystallinity of samples have been studied by X-ray diffraction X'PERT Pro Philips Diffractometer using Cu K α 1 radiation (wavelength 1.54056 Å), range 2θ 5°-90°, scan step size 0.020° and time per step 3.00 s. The method of determining the degree of crystallinity described in detail previously [16].…”

Section: Characterizationmentioning

confidence: 99%

“…Particular attention was paid to research of semicrystalline polypropylene. It proved that the PP doped with inorganic substances forms stable electrets [12][13][14][15][16] due to the ordered polymer structure and some particular defects-the inner cavities (cells) filled with air or dopants of other substances. The detailed mechanism of trapping charges in polymer matrices is still under discussion.…”

mentioning

confidence: 99%

“…It has been repeatedly confirmed that good piezoelectric properties have semicrystalline polymers with a cellular structure [14,[17][18][19][20]. On the basis of reviewing the current literature shows that an isotactic polypropylene is already recognized as a potential piezoelectric material (besides of PVDF or PFTE) [12][13][14][15][16], however, other polyolefins, including polyethylene, are still not well investigated. In practice, there is no problem with obtaining cellular structure in PE, for example, through the corona discharge or use the foaming compound.…”

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confidence: 99%

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Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Kaczmarek

Klimiec

Królikowski

et al. 2017

J Mater Sci: Mater Electron

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Section: Characterizationmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Kaczmarek

Klimiec

Królikowski

et al. 2017

J Mater Sci: Mater Electron

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“…Moreover, it has been reported that fillers addition results in enhanced polymer composites electret properties and charge stability . For example, the stability of PVDF electret can be strongly influenced by CaCO 3 and nanoclay addition.…”

Section: Resultsmentioning

confidence: 99%

“…Cellular PP ferroelectrets are widely used materials in microelectronics because of their easy and cost‐effective processing compared to other nonpolar piezoelectrets . However, poor thermal stability of PP electrets above 60 °C has limited their industrial implementation .…”

Section: Introductionmentioning

confidence: 99%

Thermally stable cellular poly(vinylidene) ferroelectrets: Optimization of CO₂ driven inflation process

Jahan

Mighri

Rodrigue

et al. 2019

J of Applied Polymer Sci

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Electrically charged cellular ferroelectrets can show excellent thermally stable piezoelectric activity and are therefore progressively used in electrochemical transducers. Given that an optimized cellular structure is a key for improving charge density and the associated piezoelectric properties in this material, we investigated the influence of CO2 inflation treatment using various gas diffusion expansion or inflation procedures on the piezoelectric d33 coefficient and thermal stability of cellular poly(vinylidene) ferroelectrets and compare with the results (partially) obtained by N2 inflation as reported in our previous study (Jahan, Mighri, Rodrigue, Ajji, J. Appl. Polym. Sci. 2019, 136, 47540). Samples were prepared using the conventional extrusion–stretching–inflation–corona charging method. Maximum d33 coefficient for CO2‐inflated samples is found to be around 30% higher than that of N2‐inflated samples (327 pC/N compared to 251 pC/N) by stepwise pressure application method. The key parameters addressed in the inflation procedures are the changes in sample thickness, morphology, and the void‐height distribution in both gas treatments. The ferroelectrets show excellent thermal stability for up to 4 days at 90, 110, and 120 °C in both treatments with a slightly improved performance in CO2 gas. The higher activation energy of CO2‐inflated samples (0.52 eV) than the N2‐inflated ones (0.43 eV) further confirms the stability data. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47929.

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Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

Ansari

Somdee

2022

Adv Energy and Sustain Res

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Piezoelectric energy harvesters (PEHs) have the potential to power low‐power electronic devices and can advance, self‐powered, autonomous electronics to the next level. Conventional ceramic‐based piezoelectrics have various properties such as fragility, rigidity, toxicity, high density, and lack of design flexibility which limit their use in more flexible environments. A ton of research has been carried out and published on novel piezomaterials, their transduction mechanisms, analytical models, and electrical circuits to improve various aspects of PEHs. Among these materials, studies on polymeric cellular (or foamed) ferroelectrets or piezoelectrets as PEHs have grown significantly since their discovery. Also, very limited or short reviews are available covering only few aspects. There is a necessity of recognizing their past and present advances in their various generation technology and polymer systems. Herein, a broader review of almost all conventional and recent polymeric foam‐based piezoelectrics for PEH applications is summarized. These cellular polymer piezoelectric systems either in bulk, composite, layered, or film form can be fabricated, and depending on the application and conditions, different polymers groups, mainly, polyolefins, polyester, fluoropolymer, and others, are considered. Their applications and future perspectives are also presented and discussed.

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New piezoelectric composites based on isotactic polypropylene filled with silicate

Cited by 20 publications

References 31 publications

Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Thermally stable cellular poly(vinylidene) ferroelectrets: Optimization of CO₂ driven inflation process

Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

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New piezoelectric composites based on isotactic polypropylene filled with silicate

Cited by 20 publications

References 31 publications

Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Characterization of piezoelectric films of foamed polyethylene obtained by extrusion

Thermally stable cellular poly(vinylidene) ferroelectrets: Optimization of CO2 driven inflation process

Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

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Thermally stable cellular poly(vinylidene) ferroelectrets: Optimization of CO₂ driven inflation process