Processing and modeling of conductive thermoplastic/carbon nanotube films for strain sensing

Pham, Giang T.; Park, Hyung Wook; Liang, Zhiyong; Zhang, Chuck; Wang, Ben

doi:10.1016/j.compositesb.2007.02.024

Cited by 304 publications

(190 citation statements)

References 33 publications

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“…The published data show that the electrical response to strain or stress is sufficient and the sensing can be performed in real time [2,3,[10][11][12][13].…”

Section: A Compression Detectionmentioning

confidence: 99%

A Flexible Multifunctional Sensor Based on Carbon Nanotube/Polyurethane Composite

et al. 2013

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“…The published data show that the electrical response to strain or stress is sufficient and the sensing can be performed in real time [2,3,[10][11][12][13].…”

Section: A Compression Detectionmentioning

confidence: 99%

A Flexible Multifunctional Sensor Based on Carbon Nanotube/Polyurethane Composite

et al. 2013

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“…Kang et al [15] make use of a MWCNT/PMMA composite continuous strain sensor for structural health monitoring applications. Another study on the behaviour of MWCNT/PMMA composite films subjected to tensile strains was carried out by Pham et al [16].…”

Section: Introductionmentioning

confidence: 99%

Strain sensing using a multiwalled carbon nanotube film

Vemuru

Wahi

Nagarajaiah

et al. 2009

The Journal of Strain Analysis for Engineering Design

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The effectiveness of multiwalled carbon nanotubes (MWCNTs) as strain sensors is investigated. The key contribution of this paper is the study of real-time strain response at the macroscale of MWCNT film under tensile load. In addition, real-time voltage change as a function of temperature is examined. MWCNT films attached to a brass specimen by epoxy using vacuum bonding have been studied. The brass specimen is subjected to tensile loading, and voltage output from the MWCNT film is obtained using a four-point probe and a sensitive voltage measurement device. Experimental results show that there is a linear change in voltage across the film when subjected to tension, and the MWCNT film both fully recovers its unstressed state upon unloading and exhibits stable electromechanical properties. The effect of temperature on the voltage output of the nanotube film under no load condition is investigated. From the results obtained it is evident that MWCNT films exhibit a stable and predictable voltage response as a function of temperature. An increase in temperature leads to an increase in conductivity of the nanotube film. The study of MWCNT film for real-time strain sensing at the macroscale is very promising, and the effect of temperature on MWCNT film (with no load) can be reliably predicted.

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“…The interfacial bonding between CNTs and the polymer reduces slip and effectively increases the strain in the sensor. (Kang et al, 2006a(Kang et al, , 2006b Pham et al (Pham et al, 2008) reported the development of conductive, MWCNT-filled, polymer composite films that can be used as strain sensors with tailored sensitivity. The electrical resistance of MWCNT-PMMA composite films subjected to tensile strains was measured, and the potential applications of the films as strain sensors with a broad range of tunable sensitivity were investigated.…”

Section: Thermoplastic-based Nanocompositesmentioning

confidence: 99%