A review of polymer-matrix piezoelectric composite coatings for energy harvesting and smart sensors

Baidya, Kabir; Roy, Amritendu; Das, Kaushik

doi:10.1007/s11998-023-00819-x

Cited by 8 publications

(1 citation statement)

References 163 publications

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“…Although the inherent flexibility and durability provided by the long polymeric chains 21 makes them a good candidate for applications requiring higher load-bearing capacity, yet the electromechanical coupling factor of piezoelectric polymers are very low compared to piezoceramics. 9,22,23 This opened up a space for piezoelectric composite materials as materials for smart paints/ coatings, 24,25 where the coating film, along with its traditional decorative and protective function, provides an avenue to harvest mechanical energy. The following paragraph gives a brief review of research activities in the area of piezoelectric paints/coatings.…”

Section: Introductionmentioning

confidence: 99%

Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic properties

Baidya,

Kumar,

Roy

et al. 2024

Polymer Composites

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Sustainable and environment‐friendly polymer composite smart paints/coatings with polyurethane (PU) derived from castor‐oil (CO) as the matrix and barium titanate (BTO) microparticles as piezo‐active inclusions (2, 4, 6, 8, and 10 vol.%) have been prepared employing ultrasonication and solvent casting, followed by contact DC poling method. Relative dielectric constants varied from 5.26 ± 0.37 for pristine COPU to 8.9 ± 0.36 for COPU/10 vol.% BTO composite, at a frequency of 1 kHz. Piezoelectric strain constant d33 of the poled films varied from 0.0 pC/N for pristine castor‐oil based polyurethane (COPU) to 1.2 pC/N for COPU/10 vol.% BTO (CPBT‐5) composite. Tensile tests showed that the elastic modulus varied from 1.98 ± 0.003 MPa for pristine COPU to 5.13 ± 0.02 MPa for COPU/10 vol.% BTO composite. Dynamic mechanical analysis confirmed the viscoelastic nature of the smart paints. Measurement of current–voltage response under different compressive loads indicates that COPU/10 vol.% BTO composite can generate a current of ~28 nA and voltage of ~8 V under a dynamic compressive load of 40 N, applied at a frequency of 1 Hz. These experiments were complemented by Fourier transform infra‐red spectroscopy and scanning electron microscopy. In addition, finite element analyses based on periodic boundary conditions have been performed to predict the effective electro‐elastic properties of these piezoelectric smart composite coatings.Highlights Castor‐oil‐based PU piezoelectric composites with BTO inclusions were developed. Increase in BTO content up to 10 vol.% increases dielectric constant by ~1.7 times. COPU/BTO composites exhibit significantly increased piezoelectric response. Elastic and viscoelastic properties are also enhanced with increasing BTO content. Finite element models show a good match with experimental results.

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Section: Introductionmentioning

confidence: 99%

Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic properties

Baidya,

Kumar,

Roy

et al. 2024

Polymer Composites

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Advances in Piezoelectret Materials‐Based Bidirectional Haptic Communication Devices

Gong,

Zhang,

Lei

et al. 2024

Advanced Materials

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Bidirectional haptic communication devices accelerate the revolution of virtual/augmented reality and flexible/wearable electronics. As an emerging kind of flexible piezoelectric materials, piezoelectret materials can effortlessly convert mechanical force into electrical signals and respond to electrical fields in a deformation manner, exhibiting enormous potential in the construction of bidirectional haptic communication devices. Existing reviews on piezoelectret materials primarily focus on flexible energy harvesters and sensors, and the recent development of piezoelectret‐based bidirectional haptic communication devices has not been comprehensively reviewed. Herein, a comprehensive overview of the materials construction, along with the recent advances in bidirectional haptic communication devices, is provided. First, the development timeline, key characteristics, and various fabrication methods of piezoelectret materials are introduced. Subsequently, following the underlying mechanisms of bidirectional electromechanical signal conversion of piezoelectret, strategies to improve the d33 coefficients of materials are proposed. The principles of haptic perception and feedback are also highlighted, and representative works and progress in this area are summarized. Finally, the challenges and opportunities associated with improving the overall practicability of piezoelectret materials‐based bidirectional haptic communication devices are discussed.

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Identification of the Effective Properties of PZT-Ni and PZT-Air Composites Considering a Non-uniform Partly Polarized Field

Nassar,

Nasedkin

2024

Springer Proceedings in Materials

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A review of polymer-matrix piezoelectric composite coatings for energy harvesting and smart sensors

Cited by 8 publications

References 163 publications

Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic properties

Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic properties

Advances in Piezoelectret Materials‐Based Bidirectional Haptic Communication Devices

Identification of the Effective Properties of PZT-Ni and PZT-Air Composites Considering a Non-uniform Partly Polarized Field

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