Structural and electrical properties of gold nanowires/P(VDF-TrFE) nanocomposites

Lonjon, Antoine; Laffont, Lydia; Demont, Philippe; Dantras, Éric; Lacabanne, C.

doi:10.1088/0022-3727/43/34/345401

Cited by 44 publications

(38 citation statements)

References 32 publications

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“…The crystallinity ratio χ c decreases linearly as a function of the Ni NWs volume fraction. This fact is coherent with experimental results observed with gold NWs in P(VDF-TrFE) [14]. A similar analysis is reported with Polypropylene filled with layered double hydroxides [26].…”

Section: Crystallinitysupporting

confidence: 91%

“…Nickel nanowires could be produced in great quantity by electrodeposition in anodic aluminium oxide. Metallic filler has preserved the specific properties of the bulk as mechanical resistance [9][10][11], stiffness [12], electrical conductivity [13,14], and magnetic susceptibility [15]. In recent works nickel nanowires have been incorporated to obtain magnetic elastomers composites [16], EMI shielding [17] or conductive nanowires nanocomposites [7,18].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical improvement of P(VDF-TrFE) /nickel nanowires conductive nanocomposites: Influence of particles aspect ratio

Lonjon

Demont

Dantras

et al. 2012

Journal of Non-Crystalline Solids

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Nickel nanowires with high aspect ratio (250) were elaborated and incorporated into poly(vinylidene difluoride-trifluoroethylene) up to 30 vol% via solvent mixing way. These nanocomposites are characterized by a conductive behavior with a high electrical conductivity value (10 2 S m −1 ) above a very low percolation threshold (0.75 vol% of metallic nanowires). The introduction of nanowires strongly depressed the matrix crystallinity. Static and dynamic mechanical analysis have been realized at low nanowire volume fraction (b 10 vol%). Below 5 vol% of nanowires, nanocomposites remain ductile. The dynamic mechanical properties are related to the volume fraction of nanowires. A strong increase of the viscoelastic contribution related to the increase of the percentage of amorphous phase is observed. The major effect is the increase of the rubbery modulus. The highest increase of 300% is obtained for only 5 vol% of nanowires; it represents an original mechanical result for low filled composites. The dependence versus nanowire content has been described by adapting the Halpin-Tsai model to high aspect ratio filler. Metallic nanowires create additional entanglements that are randomly distributed in the rubbery polymeric matrix. With their low percolation threshold, metallic nanowires based nanocomposites constitute a new class of multifunctional materials with a high conductivity associated with a ductile polymer matrix characterized by a high rubbery modulus.

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Section: Crystallinitysupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Mechanical improvement of P(VDF-TrFE) /nickel nanowires conductive nanocomposites: Influence of particles aspect ratio

Lonjon

Demont

Dantras

et al. 2012

Journal of Non-Crystalline Solids

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“…The metallic nanowires supply the highest electrical conductivity of the associated metal bulk [8]. Some results obtained with metallic nanowires showed extremely low percolation thresholds [9,10] for metal particles (b5% vol) and reached the highest conductivity values [11,12] in homogeneous dispersed low filled composites (10 2 S.m −1 ).The mechanical behavior of the polymer matrix is maintained for a small amount of nanowires (5 vol%) [13]. The previous results [12] obtained with nickel nanowires have shown an oxidative surface layer which is incompatible with high conductivity level.…”

Section: Introductionmentioning

confidence: 95%

Low filled conductive P(VDF-TrFE) composites: Influence of silver particles aspect ratio on percolation threshold from spheres to nanowires

Lonjon¹,

Demont²,

Dantras³

et al. 2012

Journal of Non-Crystalline Solids

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Polymer composites filled with silver nanowires enable the highest value of electrical conductivity known up to now in the case of conductive nanoparticle dispersion with a percolation threshold less than 1 vol%. Silver nanowires with high aspect ratio were elaborated by two types of synthesis: electrochemical deposition in a template and polyol synthesis. For the first time the influence of each kind of nanowires in composites was studied and compared to spherical nanoparticles as reference. The value of percolation threshold and conductivity level above the percolation threshold were measured and compared. These silver nanowires were introduced into poly(vinylidenedifluoride-trifluoroethylene) in comparison to spherical silver nanoparticles. The preparation method modified the effective aspect ratio of nanowires. The low percolation threshold and the microscopy observations confirmed the good dispersion of nanowires in composites. The lowest percolation threshold was determined in the case of the polyol synthesis nanowires (0.63 vol%) in comparison with electrochemical deposited nanowires (2.2 vol%). The level of conductivity above the percolation threshold obtained with each kind of particles is in the same range near 100 S.m −1 . The value of electrical conductivity obtained above the percolation threshold is unusual at this low content of conductive filler and is observed for the first time in a conductive polymer composite.

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“…The elastic constant and electrical properties of P(VDF-TrFE) copolymer are obtained from. [30,31] The capacitance of SWCNT/P (VDF-TrFE) interface is obtained from Loh et al [32].…”

Section: Resultsmentioning

confidence: 99%

Electrostriction study for single-walled carbon nanotubes-based composite

Tang

Hami

2014

Advanced Composite Materials

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This paper proposes a 3D finite element method procedure to study the electrostrictive property of the single-walled carbon nanotube (SWCNT)-based composite. The numerical model in nanoscale is developed to investigate the electrostrictive behavior of the SWCNT and the polyvinylidene fluoride and trifluoroethylene P(VDF-TrFE) composite. A bond electrical contact model is adopted to reproduce the coupled electromechanical effects of the interface between SWCNT and P(VDP-TrFE). According to the model proposed, the mechanism of the enhanced electrostriction in SWCNT/P(VDP-TrFE) composite is intuitively demonstrated. Numerical results show that aside from the variation of electric field, the electrostriction of the SWCNT/P(VDP-TrFE) composite is greatly depend on the volume fraction of SWCNT and the difference of dielectric constant between SWCNT and P(VDP-TrFE) copolymer. While the dielectric constant of SWCNT is mainly depend on the chirality of SWCNT, which means that the electrostriction of the SWCNT/P (VDP-TrFE) composite is also largely depend on the chirality of SWCNT.

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Structural and electrical properties of gold nanowires/P(VDF-TrFE) nanocomposites

Cited by 44 publications

References 32 publications

Mechanical improvement of P(VDF-TrFE) /nickel nanowires conductive nanocomposites: Influence of particles aspect ratio

Mechanical improvement of P(VDF-TrFE) /nickel nanowires conductive nanocomposites: Influence of particles aspect ratio

Low filled conductive P(VDF-TrFE) composites: Influence of silver particles aspect ratio on percolation threshold from spheres to nanowires

Electrostriction study for single-walled carbon nanotubes-based composite

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