Energy Harvesting from Ceramic/Blended Polymer Nanocomposites: Ba 0.85 Ca 0.15 Zr 0.10 Ti 0.90 O 3 /Polyvinylidene Fluoride–Polytetrafluoroethylene

2021 ◽  
pp. 2100382
Author(s):  
Amit Kumar ◽  
Archana Kumar ◽  
Kamal Prasad
Keyword(s):  
Energy Harvesting ◽  
Polymer Nanocomposites ◽  
Polyvinylidene Fluoride ◽  
Blended Polymer

scholarly journals Electro-Active Paper as a Flexible Mechanical Sensor, Actuator and Energy Harvesting Transducer: A Review

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3474 ◽  
Author(s):  
Asif Khan ◽  
Faisal Raza Khan ◽  
Heung Soo Kim
Keyword(s):  
Energy Harvesting ◽  
Polyvinylidene Fluoride ◽  
Mechanical Vibration ◽  
Hybrid Nanocomposites ◽  
Vibration Sensor ◽  
Vibration Energy ◽  
Future Research ◽  
Energy Scavenging ◽  
Vibration Energy Harvester ◽  
Bending Actuator

Electro-active paper (EAPap) is a cellulose-based smart material that has shown promising results in a variety of smart applications (e.g., vibration sensor, piezo-speaker, bending actuator) with the merits of being flexible, lightweight, fracture tolerant, biodegradable, naturally abundant, cheap, biocompatible, and with the ability to form hybrid nanocomposites. This paper presents a review of the characterization and application of EAPap as a flexible mechanical vibration/strain sensor, bending actuator, and vibration energy harvester. The working mechanism of EAPap is explained along with the various parameters and factors that influence the sensing, actuation, and energy harvesting capabilities of EAPap. Although the piezoelectricity of EAPap is comparable to that of commercially available polyvinylidene fluoride (PVDF), EAPap has the preferable merits in terms of natural abundance and ample capacity of chemical modification. The article would provide guidelines for the characterization and application of EAPap in mechanical sensing, actuation, and vibration energy scavenging, along with the possible limitations and future research prospects.

Influence of BaTiO3/white graphene filler synergy on the energy harvesting performance of a piezoelectric polymer nanocomposite

2019 ◽  
Vol 3 (3) ◽  
pp. 774-785 ◽  
Author(s):  
Deepalekshmi Ponnamma ◽  
Mariam Al Ali Al-Maadeed
Keyword(s):  
Energy Harvesting ◽  
Boron Nitride ◽  
Polyvinylidene Fluoride ◽  
Hexagonal Boron Nitride ◽  
Polymer Nanocomposite ◽  
Piezoelectric Polymer ◽  
White Graphene

Designing a piezoelectric nanogenerator based on ternary polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) nanocomposite containing ceramic BaTiO3 and hexagonal boron nitride nanomaterials.

scholarly journals Intra-Cycle Elastic Nonlinearity of Nitrogen-Doped Carbon Nanotube/Polymer Nanocomposites under Medium Amplitude Oscillatory Shear (MAOS) Flow

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1257 ◽  
Author(s):  
Milad Kamkar ◽  
Soheil Sadeghi ◽  
Mohammad Arjmand ◽  
Ehsan Aliabadian ◽  
Uttandaraman Sundararaj
Keyword(s):  
Rheological Properties ◽  
Polymer Nanocomposites ◽  
Polyvinylidene Fluoride ◽  
Viscoelastic Behavior ◽  
Oscillatory Shear ◽  
Dispersed Systems ◽  
Nitrogen Doped ◽  
Elastic Nonlinearity ◽  
Medium Amplitude Oscillatory Shear ◽  
Nitrogen Doped Carbon

This study seeks to unravel the effect of carbon nanotube’s physical and chemical features on the final electrical and rheological properties of polymer nanocomposites thereof. Nitrogen-doped carbon nanotubes (N-CNTs) were synthesized over two different types of catalysts, i.e., Fe and Ni, employing chemical vapor deposition. Utilizing this technique, we were able to synthesize N-CNTs with significantly different structures. As a result, remarkable differences in the network structure of the nanotubes were observed upon mixing the N-CNTs in a polyvinylidene fluoride (PVDF) matrix, which, in turn, led to drastically different electrical and rheological properties. For instance, no enhancement in the electrical conductivity of poorly-dispersed (N-CNT)Ni/PVDF samples was observed even at high nanotube concentrations, whereas (N-CNT)Fe/PVDF nanocomposites exhibited an insulative behavior at 1.0 wt%, a semi-conductive behavior at 2.0 wt%, and a conductive behavior at 2.7 wt%. In terms of rheology, the most substantial differences in the viscoelastic behavior of the systems were distinguishable in the medium amplitude oscillatory shear (MAOS) region. The stress decomposition method combined with the evaluation of the elastic and viscous third-order Chebyshev coefficients revealed a strong intra-cycle elastic nonlinearity in the MAOS region for the poorly-dispersed systems in small frequencies; however, the well-dispersed systems showed no intra-cycle nonlinearity in the MAOS region. It was shown that the MAOS elastic nonlinearity of poorly-dispersed systems stems from the confinement of N-CNT domains between the rheometer’s plates for small gap sizes comparable with the size of the agglomerates. Moreover, the intra-cycle elastic nonlinearity of poorly-dispersed systems is frequency-dependent and vanished at higher frequencies. The correlation between the microstructure and viscoelastic properties under large shear deformations provides further guidance for the fabrication of high-performance 3D-printed electrically conductive nanocomposites with precisely controllable final properties for engineering applications.

Mechanical energy harvesting properties of free-standing carbyne enriched carbon film derived from dehydrohalogenation of polyvinylidene fluoride

Nano Energy ◽  
2019 ◽  
Vol 59 ◽  
pp. 453-463 ◽  
Author(s):  
Karthikeyan Krishnamoorthy ◽  
Vimal Kumar Mariappan ◽  
Parthiban Pazhamalai ◽  
Surjit Sahoo ◽  
Sang-Jae Kim
Keyword(s):  
Energy Harvesting ◽  
Polyvinylidene Fluoride ◽  
Mechanical Energy ◽  
Carbon Film ◽  
Free Standing

Energy Harvesting δ-Phase Polyvinylidene-Fluoride Sponge

2016 ◽  
Vol 8 (4) ◽  
pp. 817-824 ◽  
Author(s):  
Eunseok Oh ◽  
Dongwan Seo ◽  
Solbaro Kim ◽  
Keun Young Lee ◽  
Sang-Woo Kim ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Polyvinylidene Fluoride

Hierarchical interfaces induce high dielectric permittivity in nanocomposites containing TiO2@BaTiO3 nanofibers

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6701-6709 ◽  
Author(s):  
Xin Zhang ◽  
Weiwei Chen ◽  
Jianjun Wang ◽  
Yang Shen ◽  
Lin Gu ◽  
...  
Keyword(s):  
Dielectric Permittivity ◽  
Polymer Nanocomposites ◽  
Polyvinylidene Fluoride ◽  
Nanocomposite Films ◽  
High Dielectric Permittivity ◽  
High Dielectric

TiO2 nanofibers embedded with BaTiO3 nanoparticles are fused with polyvinylidene fluoride into nanocomposite films. The hierarchical interfaces in the nanofibers induce a three-fold enhancement in dielectric permittivity of the polymer nanocomposites.

PolyVinyliDene Fluoride (PVDF) Material Based Energy Harvesting from Train and Damaged Bridge Interaction

2013 ◽  
Vol 569-570 ◽  
pp. 335-341 ◽  
Author(s):  
Paul Cahill ◽  
Nathan Jackson ◽  
Alan Mathewson ◽  
Vikram Pakrashi
Keyword(s):  
Finite Element ◽  
Energy Harvesting ◽  
Damage Detection ◽  
Polyvinylidene Fluoride ◽  
Element Model ◽  
Element Analysis ◽  
Operational Conditions ◽  
Existing Structures ◽  
Bridge Structures ◽  
New Generation

This paper investigates the potential use of PolyVinyliDene Fluoride (PVDF) for the purposes of damage detection for infrastructural elements, primarily for bridge elements. PVDF based sensors have been created and characterised in the laboratory in this regard. Finite element analysis of vehicle-bridge interactions with varying damage are carried out. The energy harvesting signatures of realistic trains are assessed and quantified for the modelled bridge. The effect of localized damage on the finite element model and its subsequent relationship with energy harvesting from the calibrated PVDF based sensors are investigated using the harvesting signatures of realistic trains. This approach is useful in terms of designing new generation smart bridge structures and for possible retrofit of existing structures. The use of train-bridge interaction ensures that the damage detection is carried out while the bridge is under operational conditions. Consequently, there is minimal to no impact on the existing operation of the bridge or the transport network during damage detection. The paper is expected to be useful for practicing engineers and researchers in the field of application of new materials in the next generation of bridge structures.

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