Polyisoprene—multi-wall carbon nanotube composites for sensing strain

Knite, Māris; Tupureina, Velta; Fuith, A.; Zavickis, Juris; Teteris, Valdis

doi:10.1016/j.msec.2006.08.016

Cited by 104 publications

(66 citation statements)

References 14 publications

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“…The decrease of conductivity with increasing strain is similar to the trend shown by carbon black filled elastomers [11][12][13][14][15][16][17][18][19]. In that case, the change in conductivity upon straining is generally explained in terms of two simultaneous processes that operate on a continuous conductive network of secondary aggregates in an insulating matrix.…”

Section: Electrical Properties Under Uniaxial Strainsupporting

confidence: 71%

“…For CPCs with a certain filler loading, any parameter that can alter the interparticle distance will affect the conductivity. Several groups have investigated the change of conductivity of CPCs as a function of temperature [3,4], solvent vapors [5][6][7][8][9], pressure [10] or mechanical stretching [11][12][13][14][15][16][17][18][19][20][21]. Such materials have the potential to become a new generation of sensors if the dependence is reversible.…”

Section: Introductionmentioning

confidence: 99%

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Piezoresistive polymer composites based on EPDM and MWNTs for strain sensing applications

Ciselli

Busfield

et al. 2010

E-Polymers

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Abstract:Elastomeric composites based on Ethylene-Propylene-Diene-Monomer (EPDM) filled with multi-wall carbon nanotubes (MWNTs) have been prepared, showing improved mechanical properties as compared to the pure EPDM matrix. The results have been discussed using the Guth model. The main focus of the study was on the electrical behavior of these conductive polymer composites (CPCs), in view of possible sensor applications. A linear relation has been found between conductivity and deformations up to 10% strain, which means that such materials could be used for applications such as strain or pressure sensors. Cyclic experiments were conducted to establish whether the linear relation was reversible, which is an important requirement for sensor materials.

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Section: Electrical Properties Under Uniaxial Strainsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Piezoresistive polymer composites based on EPDM and MWNTs for strain sensing applications

Ciselli

Busfield

et al. 2010

E-Polymers

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show abstract

“…Similarly, nanocomposites based on elastomeric materials like silicone [19][20][21][22] and natural rubber [23] filled with carbon nanoparticles have been investigated for compressive piezoresistance, primarily for pressure sensing applications (e.g., tactile sensors, pressure mapping).…”

Section: Introductionmentioning

confidence: 99%

Effect of carbon nanoparticle type, content, and stress on piezoresistive polyethylene nanocomposites

Rizvi

Naguib

2014

Polymer Engineering & Sci

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This study examines the piezoresistive behavior of polyethylene (PE) composites containing different types of carbon nanoparticle fillers. The fillers investigated are single-wall carbon nanotube (SWCNT), multi-wall carbon nanotube (MWCNT), and graphene nanoplatelets (GNP), which were dispersed in PE through melt blending in concentrations ranging between 0.5 and 10 wt%. The dispersion and nanocomposite morphology were investigated using scanning electron microscopy and X-ray diffraction with strong evidence found for shear-induced orientation of GNP nanoparticles during the compression molding process. The conductivity and permittivity of the composite materials was investigated using impedance spectroscopy and the lowest percolation threshold and highest electrical conductivity was observed for SWCNT composites, followed by MWCNT and GNP. The compressive piezoresistance of the nanocomposites was measured and the initial, elastic, and plastic deformation regions were all identifiable by the resistance measurements. The main finding of this study is that the piezoresistance of MWCNT nanocomposites is more sensitive to the effects of varying stress and composition than SWCNT nanocomposites. This indicates an evolving filler network in the case for MWCNT, while a static network for SWCNT, which is explained by the higher aspect ratio and surface area of the latter. POLYM. ENG.

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“…In this contest, several micro-and nano-sized conductive fillers, such as carbon black (CB), metallic powders (e.g. silver and copper), and carbon nanotubes (CNTs), are commonly used due to their light weight, high flexibility and ability to absorb mechanical shocks in order to prepare natural rubber composites [15], for applications in the fields of electromagnetic interference shielding, self-regulated heating, package material and pressure sensors [16]. It has been demonstrated that the filler properties, in terms of particle size, surface area, aggregate structure, surface activity and conductivity, can strongly influence the characteristics of the final composite [15].…”

Section: Introductionmentioning

confidence: 99%

Neat and GNPs loaded natural rubber fibers by electrospinning: Manufacturing and characterization

Cacciotti

House²,

Meisina

et al. 2015

Materials & Design

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The interest towards natural rubber (NR) is progressively increasing due to its sustainable production and remarkable mechanical properties, presenting a wide application range in the automotive industry and civil engineering. In this paper we report, for the first time, the use of electrospinning technique to produce neat and graphene nanoplatelets (GNPs, 1 wt.%) loaded natural rubber fibers. Both randomly distributed and aligned fibers (average diameter size ~ 1 μm) mats were obtained, resulting uniform and defect-free. A detailed characterization of these fibers is reported, including field emission-scanning electron microscopy (FEG-SEM), X-Ray diffraction (XRD) and infrared spectroscopy (FTIR-ATR) techniques. It has been demonstrated that the electrospinning process is able to induce a strong orientation of the polymeric chains in the case of aligned fibers, with respect to the randomly oriented fibers and solvent cast films

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Polyisoprene—multi-wall carbon nanotube composites for sensing strain

Cited by 104 publications

References 14 publications

Piezoresistive polymer composites based on EPDM and MWNTs for strain sensing applications

Piezoresistive polymer composites based on EPDM and MWNTs for strain sensing applications

Effect of carbon nanoparticle type, content, and stress on piezoresistive polyethylene nanocomposites

Neat and GNPs loaded natural rubber fibers by electrospinning: Manufacturing and characterization

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