Pressure-sensitive electrically conductive nitrile rubber composites filled with particulate carbon black and short carbon fibre

Pramanik, P.; Khastgir, Dipak; De, S. K.; Saha, Tushar Kanti

doi:10.1007/bf00582450

Cited by 100 publications

(39 citation statements)

References 10 publications

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“…6,10,12 Equation (7) indicates that a larger y value decreases the original interparticle separation s 0 . Thus, the change in interparticle separation (s 0 À s) is also smaller when y is high (see curves 1 and 2 in Fig 11).…”

Section: Discussionmentioning

confidence: 98%

Piezoresistance of conductor filled insulator composites

et al. 2001

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Section: Discussionmentioning

confidence: 98%

Piezoresistance of conductor filled insulator composites

et al. 2001

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“…The NPCR effect was found as a result of hydrostatic pressure, or uniaxial compression in composites, for example, PE/CB, 7 epoxy/Fe 3 O 4 , 4 and CB-filled conductive vulcanite. 5 It was interpreted on the base of the percolation effect caused by reduction of the volume of insulation phases under pressure, 4,7 or the formation of new conducting networks. 5 PPCR was found in very weakly filled polyurethane/GP composites with a resistivity of about 10 12 ⍀ cm.…”

mentioning

confidence: 99%

“…5 It was interpreted on the base of the percolation effect caused by reduction of the volume of insulation phases under pressure, 4,7 or the formation of new conducting networks. 5 PPCR was found in very weakly filled polyurethane/GP composites with a resistivity of about 10 12 ⍀ cm. It was attributed to an ionic conduction process due to the hydrostatic pressure.…”

mentioning

confidence: 99%

A preliminary study on mechanical-electrical behavior of graphite powder-filled high-density polyethylene composites

Yi¹,

Song²,

Zheng³

2000

J. Appl. Polym. Sci.

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Mechanical and electrical responses of graphite powder (GP)-filled highdensity polyethylene composites to a uniaxial compression-decompression cycle were studied. Above a compression loading level, a large positive-pressure coefficient effect of resistance was observed, for which a slide mechanism of GP in the matrix is believed to be responsible. In a step-wise compressive loading and loading-holding experiment, the critical compression level was also found, at which the resistance response changed from a time-independent one to a time-dependent, creep-like one. The current-voltage behavior of the composites showed that the GP contact was non-ohmic, regardless of GP contents and pressure levels.

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“…Because of the sensitive resistance responses to many external stimuli such as mechanical force, [1][2][3] solvent, 4,5 electrical field, 6,7 magnetic field, 8 and ultrasonic field, 9 conductive polymer composites (CPCs) fabricated by incorporation of conducting fillers into the insulating polymer matrix have found wide applications or great prospects in self-regulating heaters, overcurrent protectors, stress/strain sensors, mechanical damage self-monitoring materials, gas sensors, and so on. 2,4,10,11 It is widely accepted that the electrical conduction of CPCs is due to the formation of a continuous three-dimensional percolation network throughout the matrix, [12][13][14] which contributes to the conduction via direct contact of filler aggregates 15 or electron tunneling across adjacent aggregates.…”

Section: Introductionmentioning

confidence: 99%

Room temperature resistance relaxation behavior for carbon black filled conductive polymer composites

Zhou

Song

Zheng

et al. 2007

J of Applied Polymer Sci

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Room temperature resistance relaxation was studied with respect to carbon black (CB) volume fraction, the type of polymer matrix, and the environment. It was found that resistance of CB filled poly(methylvinylsiloxane) and polypropylene (PP) conductive composites changed at room temperature with different directions and amplitudes, depending on the filler volume fraction and the environment. The room temperature resistance relaxation was ascribed to the local Joule heat at the tunneling junction or the swelling effect of the solvents. On the other hand, CB filled immiscible PP/Nylon 1212 blends exhibited a stable electrical conduction due to the selective distribution of CB aggregates along the interface between polymer matrices.

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Pressure-sensitive electrically conductive nitrile rubber composites filled with particulate carbon black and short carbon fibre

Cited by 100 publications

References 10 publications

Piezoresistance of conductor filled insulator composites

Piezoresistance of conductor filled insulator composites

A preliminary study on mechanical-electrical behavior of graphite powder-filled high-density polyethylene composites

Room temperature resistance relaxation behavior for carbon black filled conductive polymer composites

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