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Excellent piezoresistivity of composites made from networked carbon nanotubes and polydimethylsiloxane: An intertube barrier driven strain sensing

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Resistance change becomes pulse-like as the samples are bent and/or twisted, attributed to the rapid increase in intertube spacing. Straining induces movements and segmentations of tube aggregates with tube mobility ranging at 0.1e90 nm/s. Intertube barrier driven sensing mechanism is viscoelasticity related and is therefore interpreted on the basis of spring-dashpot models. |