Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

Ansari, Manauwar Ali; Somdee, Patcharapon

doi:10.1002/aesr.202200063

Cited by 16 publications

(4 citation statements)

References 144 publications

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“…[89,144,145] Alternatively, cellular materials can be achieved by sugar-templating strategies and stretching particulate-filled polymers to initiate voids at the filler-polymer interfaces through delamination. [146,147] Piezoelectricity can be induced in such voided materials by ionizing the air pockets by applying a sufficiently high electric field. This can be achieved through direct electrode contact poling, corona discharge poling, or soft X-ray poling.…”

Section: Porous Piezoelectret Elastomer By Foaming Techniquesmentioning

confidence: 99%

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How to Make Elastomers Piezoelectric?

Owusu

Venkatesan

Nüesch

et al. 2023

Adv Materials Technologies

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Piezoelectrics play a significant role in modern electronics and electric devices. Thermal or mechanical stress on such materials induces a change in polarization generating an electric response, which is the sole effect of why they are so interesting. However, most piezoelectrics are rigid and brittle ceramics and thus difficult to integrate into wearable electronics that comply with human skin or organs. To facilitate their incorporation into stretchable, so‐called next generation electronic devices, researchers have focused on developing piezoelectric materials with improved properties. Significant advances are achieved regarding flexibility. However, marrying piezoelectricity and elasticity proved challenging, as elastomers, with their amorphous flexible network structure, cannot keep polarization permanently. Here the most recent developments in the field of piezoelectric elastomers are reviewed, and potential future applications in sensors and energy harvesting are discussed.

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Section: Porous Piezoelectret Elastomer By Foaming Techniquesmentioning

confidence: 99%

“…Fang et al reported a cellular PEN piezoelectret fabricated from a commercial PEN polymer film through physical foaming [147] Copyright 2022, Wiley-VCH GmbH. (i) SEM images of the top view, cross-sectional view, and close view of cellular PDMS microstructures.…”

Section: Porous Piezoelectret Elastomer By Foaming Techniquesmentioning

confidence: 99%

How to Make Elastomers Piezoelectric?

Owusu

Venkatesan

Nüesch

et al. 2023

Adv Materials Technologies

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“…This result can be explained by the good dispersion of the Cu particles. [46][47][48][49] Furthermore, more enhancement in TC of rigid PU composite may be because of the addition of Cu particles did not create a foam structure inside PU matrix (Table 3). Figure 6 shows DSC thermograms of flexible and rigid PU/Cu composites.…”

Section: Thermal Conductivitymentioning

confidence: 99%

Thermo‐mechanical properties of flexible and rigid polyurethane (PU)/Cu composites

2022

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In this article, flexible and rigid polyurethane (PU)/copper (Cu) composites are prepared via a simple and cost-effective solution casting process. The filler dispersion and chemical bonding of composites are investigated by SEM and FTIR techniques. The results showed the homogeneous dispersion of Cu microparticles. Furthermore, thermal properties are investigated using DMA, DSC, and thermal conductivity measurements. The maximum improvement in thermal conductivity for flexible and rigid PU composites is 24%, and 48%, respectively, as compared to their pure counterparts. The obtained thermal conductivity values are also compared and analyzed with the mechanical property model (Corans and Patel model) and found in good agreement with the output of the model. DMA results showed enhancement in the storage modulus with filler loading while the DSC results revealed the endothermic temperature did not significantly change with adding Cu filler in both flexible and rigid PU matrices. The mechanical properties of composites were studied using tensile and hardness (Shore A and Shore D) test. For flexible PU composites an improvement in tensile strength (43%), Young's modulus (111%), Shore A hardness (6%), Shore D hardness (27%) as compared to pure flexible PU. For rigid PU composites a reduction in tensile strength (23%), Young's modulus (32%), and an increase in Shore A hardness (3%), Shore D hardness (5%) as compared to pure rigid PU. As a result of the current study, TC of rigid PU is found doubly enhanced compared to flexible PU at the same filler concentration. Copper microparticles can act as active filler in both flexible and rigid PU matrices.

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“…The polymer foam expands its applications in the areas of building insulation, aircraft, automobile, and packaging materials through its light weight, high heat resistance, and noise reduction characteristics. − Recently, it enlarged its uses to thermal energy storage, − energy harvesting, − and bioengineering. − …”

Section: Introductionmentioning

confidence: 99%

Influence of the Foaming Process on the Burning Behavior of the PET–PEN Copolymer

2023

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The manufacturing process can modify the micromechanical structure, usefulness, and functionality of foams. Although one-step foaming is a simple process, controlling the morphology of the foams is difficult compared to the two-step processing method. In this study, we investigated the experimental differences in thermal and mechanical properties, particularly combustion behavior, between PET−PEN copolymers prepared by the two methods. With an increase in foaming temperature T f , the PET−PEN copolymers became more fragile, and the breaking stress of the one-step PET− PEN foamed at the highest T f was only 2.4% of that of the raw material. For the pristine PET−PEN, 24% of the mass was burned, leaving 76% as a molten sphere residue. The two-step MEG PET− PEN had only 1% of its mass remaining as a residue, whereas the onestep PET−PENs had between 41 and 55%. The actual mass burning rates were similar for all the samples except the raw material. The coefficient of thermal expansion of the one-step PET−PEN was about two orders of magnitude lower than that of the two-step SEG.

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Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

Cited by 16 publications

References 144 publications

How to Make Elastomers Piezoelectric?

How to Make Elastomers Piezoelectric?

Thermo‐mechanical properties of flexible and rigid polyurethane (PU)/Cu composites

Influence of the Foaming Process on the Burning Behavior of the PET–PEN Copolymer

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