Highly foldable PANi@CNTs/PU dielectric composites toward thin-film capacitor application

Xu, Wenhui; Ding, Yichun; Yu, Ying; Jiang, Shaohua; Chen, Linlin; Hou, Haoqing

doi:10.1016/j.matlet.2017.01.064

Cited by 95 publications

(38 citation statements)

References 22 publications

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“…These composites may also have repeated structural units of size less than 100 nm . Polymer nanocomposites have drawn great attention of many researchers because of their improved properties by the addition of nanoparticles in the polymer matrix . Polymer composites with nanoparticles have more advantages over composites with microparticles because they improve the thermomechanical properties without any reduction in dielectric strength and improve the degradation stability .…”

Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Nayak

Khastgir

2018

J of Applied Polymer Sci

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Polydimethylsiloxane (PDMS)/lead zirconate titanate (PbZr0.52Ti0.48O3, PZT)‐based nanocomposites with high dielectric constant (permittivity, k) are prepared through room temperature mixing. The effect of PZT loading on electrical and mechanical properties of the PDMS–PZT composites is extensively studied. It is found that there is significant increase in permittivity with PZT loading and decrease in volume resistivity. All the composites have low dielectric loss compared to permittivity value. It is observed that there is increase in permittivity and decrease in volume resistivity of composites after poling, which is due to the dipolar polarization. It is found that both permittivity (ε′) and alternating current conductivity (σac) are increased with temperature at low frequency (1 Hz) and decreased with temperature at high frequency (1 MHz). The above composites are sensitive to external pressure and can be used as pressure/force sensor. The tensile strength and % elongation at break decreases with PZT loading, which is due to the nonreinforcing behavior of PZT ceramic. PZT particles distribution and dispersion in PDMS matrix are observed through field emission scanning electron microscopy, high resolution transmission electron microscopy, and atomic force microscopy/scanning probe microscopy. Thermal stability of composites increased with the PZT loading which is due to higher thermal stability of PZT particles compared to PDMS matrix. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47307.

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Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Nayak

Khastgir

2018

J of Applied Polymer Sci

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“…The dielectric permittivity at the percolation threshold of 2.9 wt.% fillers, were raised by 50-fold compared to the polymer matrix at 100 Hz. CNTs covered with PANI (PANI@CNTs) were synthesized as conducting fillers that showed good dispersibility in thermoplastic polyurethane [269]. PANI nanorods on poly(vinyl pyrrolidone) (PA-NI@PVP) were synthesized with uniform size and easily dispersed in the PVDF matrix.…”

Section: Dielectric Capacitorsmentioning

confidence: 99%

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

et al. 2018

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“…On the other hand, polymers result in a high breakdown strength and good processability, but their dielectric constant is relatively low, as required for the fabrication of memory devices. [79][80][81][82] Hence, dielectric composites consisting of inorganic materials and polymers have been widely studied due to their excellent dielectric properties, good mechanical flexibility and ease of fabrication. [83][84][85][86][87][88][89][90][91][92] Further, to study the memory effect of polymer nanocomposites, memory device was prepared.…”

Section: Characteristics Of Memory Devicementioning

confidence: 99%

Alteration of structural, optical and electrical properties of CdSe incorporated polyvinyl pyrrolidone nanocomposite for memory devices

Tyagi

Devi

2018

J. Adv. Dielect.

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The important enhancement in the structural, dielectric and optical properties of pure polymer and CdSe incorporated polyvinyl pyrrolidone has been reported in this paper. The surface morphology of CdSe/PVP nanocomposite film is studied by using scanning electron microscopy (SEM). The chemical composition of different elements has been reported using energy dispersive X-ray (EDX) spectrum. The structure of polymer nanocomposite is determined with the help of X-ray diffraction (XRD) spectrum and is observed to be hexagonal. Particle size, intercrystalline separation, interplanner spacing, lattice parameters, strain and dislocation factors are calculated using XRD results. Fourier transform infrared spectroscopy (FTIR) and Photoluminescence (PL) analysis have been studied in order to check the possible interaction between CdSe quantum dots and polyvinyl pyrrolidone (PVP) matrix. The ac conductivity of CdSe/PVP nanocomposite is found to be higher as compared to pure polymers. The highest value of conductivity observed at 60203 Hz and at 523 K is found to be [Formula: see text][Formula: see text]Sm[Formula: see text]. Comparative study of dielectric constant, dielectric losses, dissipation factor, electric modulus and impedance has been performed. The semi-circles in impedance measurement for both materials show the bulk electrical properties that result in single relaxation process in CdSe/PVP nanocomposite.

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Highly foldable PANi@CNTs/PU dielectric composites toward thin-film capacitor application

Cited by 95 publications

References 22 publications

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

Alteration of structural, optical and electrical properties of CdSe incorporated polyvinyl pyrrolidone nanocomposite for memory devices

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Highly foldable PANi@CNTs/PU dielectric composites toward thin-film capacitor application

Cited by 95 publications

References 22 publications

Polydimethylsiloxane–PbZr0.52Ti0.48O3 nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Polydimethylsiloxane–PbZr0.52Ti0.48O3 nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

Alteration of structural, optical and electrical properties of CdSe incorporated polyvinyl pyrrolidone nanocomposite for memory devices

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Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties