Nonlinear Viscoelasticity of One Dimensional Filler Reinforced Elastomer Composites

Jana, Karun Kumar; Patel, Mrinal; Rana, Dipak; Maiti, Pralay

doi:10.1007/978-3-319-08702-3_2

Cited by 9 publications

(9 citation statements)

References 111 publications

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“…5 For nanoparticle-filled polymers, when the volume fraction of nanoparticles exceeds a critical content ϕ c , known as the percolation threshold, the dispersed aggregates/ agglomerates may connect and form a space-spanning percolated network due to the weak attractive interaction between particles, 6 resulting in a unique transition of mechanical properties from liquidlike to solidlike. This transition is known to be dependent on nanoparticle structure (orientation, topology), 7,8 nanoparticle−polymer interactions, 7,9 and the melt-mixing procedure. 10 During melt processing, the strength of the flow field will affect the dispersion and network of nanoparticle aggregates.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Percolation in Poly(methylvinylsiloxane)/Silica Nanocomposites: The Role of Polymer–Particle Interaction

et al. 2022

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Agglomeration and linking of nanoparticles or aggregates lead to the formation of percolated particle networks and alter the mechanical enhancement in polymer nanocomposites. Although critical behaviors have been widely studied, the solidlike behavior is only well described under the condition of the uniform dispersion of nanoparticles. In this work, we illustrate the role of particle−polymer interaction in the uniformity of particle dispersion and mechanical enhancement. Two types of silica with different interfacial adhesion energies with poly-(methylvinylsiloxane) were adopted, resulting in different uniformities of particle dispersion. The critical percolation concentrations from the yield shear stress and yield first normal stress difference are identical. A lower interfacial adhesion energy leads to a higher critical concentration. The preshear stress only affects the critical concentration but does not change the critical exponents, which rely on the particle−polymer interaction. The mechanical enhancement, expressed as the power-law dependence of the yield stresses on the filler content, exhibits extraordinarily large power-law exponents for nanocomposites with lower interfacial adhesion energy, seriously deviating from the theoretical prediction in homogeneous dispersion systems. Based on the structural information from small-angle X-ray scattering (SAXS)/ ultrasmall-angle X-ray scattering (USAXS) and transmission electron microscopy (TEM), we propose a model describing the heterogeneous percolation of loose aggregates in the presence of compact aggregates. This model shows that the heterogeneity of aggregates, including the fraction of compact aggregates and their fractal dimension, is the key factor in the scaling relationship between the yield stress and the particle volume fraction.

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Section: Introductionmentioning

confidence: 99%

Heterogeneous Percolation in Poly(methylvinylsiloxane)/Silica Nanocomposites: The Role of Polymer–Particle Interaction

et al. 2022

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“…Elastomers are polymers that can withstand remarkable deformations in a highly reversible manner [1][2][3][4] This distinctive attribute makes them suitable for several industrial applications that require flexibility. 5 However, they display low strength ($10-34 MPa), 6 low Young's modulus ($1 MPa), 7 and low electrical conductivity ($10 À9 -10 À13 S/cm). 8 The manufacture of composite materials using carbon nanotubes (CNTs) 9 as nanofillers has appeared as an appropriate solution to overcome these limitations and diversify the applications of elastomers.…”

Section: Introductionmentioning

confidence: 99%

“…12 It has been reported that the addition of trace amounts of CNTs is enough to dramatically improve the mechanical and electrical properties of the elastomeric matrix without sacrificing its inherent flexibility. 5,[13][14][15][16] CNTs can be described as hollow graphitic sheets rolled into cylindrical shape, [17][18][19][20] where the carbon atoms are sp2 hybridized. 10,21 Their diameter is usually smaller than 240 nm 22,23 whereas their length is smaller than 550 μm.…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of elastomer‐based composites reinforced with carbon nanotubes—A review

Aït Hocine,

Miranda,

Nauman

et al. 2024

Polymers for Advanced Techs

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Even though carbon nanotubes offer an excellent solution for the design of strain sensors, their widespread commercial utilization has been hampered by the unavailability of design rules, inconsistencies in their macro‐scale properties, and lack of understanding of the effects of various parameters on their characteristics. Nevertheless, many researches have been carried out to characterize elastomeric nanocomposites filled with carbon nanotubes in order to optimize their properties such as electrical conductivity and strain sensitivity range. This article reviews the effect of different parameters on the electrical properties of such nanocomposites, followed by the analysis of performances of elastomer strain sensors.

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“…The irradiated polymer/composites have several applications, for example, recent development in fuel cell membranes . Even though a large variety of layered silicates in polymer nanocomposites have been reported in literature, incorporation of some specific organosilicates filler into the polymer matrix at the nanoscale level induces phase transformation and is useful in the development of smart membrane and other devices ,. Nanohybrid has engrossed the field of membrane science because of improved thermal, mechanical, physical and electrochemical properties due to their reinforcing effect and intimate interactions ,.…”

Section: Introductionmentioning

confidence: 99%

New Generation Fuel Cell Membrane Using Swift Heavy Ions

et al. 2017

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In this review, we focus on the effect of high energy swift heavy ion irradiation on fluoropolymers and their nanohybrids, prepared through dispersion of few weight percentage of organically modified nanoclay in polymer matrix, for the fabrication of new generation fuel cell membrane. A variety of chemical, physical and structural changes are revealed with superior properties in nanohybrid. In addition, radiation resistant nature of the polymer has been discussed with improved properties including formation of nanopores and high proton conductivity of the functionalized nanopores having sufficient mechanical strength which are essential requirements for any fuel cell membrane. Membrane electrode assembly has been demonstrated having very good power density and the developed membrane has the potential to replace the expensive Nafion as standard membrane currently being used in fuel cell membrane. Further, nanoclay induced piezoelectricity in polymer matrix is attractive for the fabrication of a smart membrane using swift heavy ions.[a] Dr.

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Nonlinear Viscoelasticity of One Dimensional Filler Reinforced Elastomer Composites

Cited by 9 publications

References 111 publications

Heterogeneous Percolation in Poly(methylvinylsiloxane)/Silica Nanocomposites: The Role of Polymer–Particle Interaction

Heterogeneous Percolation in Poly(methylvinylsiloxane)/Silica Nanocomposites: The Role of Polymer–Particle Interaction

Electrical properties of elastomer‐based composites reinforced with carbon nanotubes—A review

New Generation Fuel Cell Membrane Using Swift Heavy Ions

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