Thermo-mechanical properties of a piezoelectric polyimide carbon nanotube composite: Assessment of composite theories

Chakrabarty, Arnab; Çağın, Tahir

doi:10.1016/j.commatsci.2014.05.045

Cited by 13 publications

(9 citation statements)

References 23 publications

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“…The piezoresistivity [133,134,142,175,[182][183][184][185] and piezoelectricity [154], which are difficult to interpret in the conventional methodology, have been actively studied through the multiscale analysis methodology, which is shown in Figs. 33 and 34.…”

Section: Current Multiscale Modelsmentioning

confidence: 99%

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

Chung

Cho

2019

Multiscale Sci. Eng.

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Ever since several formations of polymer-based nanocomposites were reported, research on their modeling, characterization, and computerized analysis methodology has been extensively investigated to become a major academic field of advanced material science and technology. This paper mainly summarizes the multiscale computational analysis methodology for polymer nanocomposites. We also introduce various computational modeling approaches to characterizing the physical behavior of polymer nanocomposites, which are the molecular dynamics approach, and the continuum approach. Based on the various computational analyses, we summarize how the material properties and phenomenological behaviors of polymer nanocomposites were analyzed.

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Section: Current Multiscale Modelsmentioning

confidence: 99%

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

Chung

Cho

2019

Multiscale Sci. Eng.

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“…To-date, many continuum mechanics models have been developed to predict the mechanical properties of carbon nanotubes (CNTs) [1][2][3][4][5][6]. Many research studies on the quasi-continuum model have been done [7][8][9][10][11][12], as it is based on the interatomic potentials and has been proved to be very efficient and reliable.…”

Section: Introductionmentioning

confidence: 99%

A temperature related study on bifurcation strain and force of carbon nanotubes

Zhao

Bian

Pan

2015

Computational Materials Science

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“…The engineering of polymer composite materials at the nanometric level has enabled the development of materials suitable for advanced applications of interest to both research and industry [ 1 ]. Materials and systems that can harvest energy from the surrounding environment and can also “sense” different stimuli—pressure, touch, temperature—have been studied in the last few decades and are critical components of many technologies that include sensors for consumer applications [ 2 , 3 ], adaptable robotics [ 4 ], prosthetics [ 5 ], and health monitoring [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

All-Polymer Piezo-Composites for Scalable Energy Harvesting and Sensing Devices

Stiubianu¹,

Bele²,

Bargan³

et al. 2022

Molecules

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Silicone elastomer composites with piezoelectric properties, conferred by incorporated polyimide copolymers, with pressure sensors similar to human skin and kinetic energy harvester capabilities, were developed as thin film (<100 micron thick) layered architecture. They are based on polymer materials which can be produced in industrial amounts and are scalable for large areas (m2). The piezoelectric properties of the tested materials were determined using a dynamic mode of piezoelectric force microscopy. These composite materials bring together polydimethylsiloxane polymers with customized poly(siloxane-imide) copolymers (2–20 wt% relative to siloxanes), with siloxane segments inserted into the structure to ensure the compatibility of the components. The morphology of the materials as free-standing films was studied by SEM and AFM, revealing separated phases for higher polyimide concentration (10, 20 wt%). The composites show dielectric behavior with a low loss (<10−1) and a relative permittivity superior (3–4) to pure siloxane within a 0.1–106 Hz range. The composite in the form of a thin film can generate up to 750 mV under contact with a 30 g steel ball dropped from 10 cm high. This capability to convert a pressure signal into a direct current for the tested device has potential for applications in self-powered sensors and kinetic energy-harvesting applications. Furthermore, the materials preserve the known electromechanical properties of pure polysiloxane, with lateral strain actuation values of up to 6.2% at 28.9 V/μm.

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Thermo-mechanical properties of a piezoelectric polyimide carbon nanotube composite: Assessment of composite theories

Cited by 13 publications

References 23 publications

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

Recent Studies on the Multiscale Analysis of Polymer Nanocomposites

A temperature related study on bifurcation strain and force of carbon nanotubes

All-Polymer Piezo-Composites for Scalable Energy Harvesting and Sensing Devices

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