Journal ArticleDOI
Strong linear-piezoresistive-response of carbon nanostructures reinforced hyperelastic polymer nanocomposites
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TLDR
In this paper, the authors report highly strain-tolerant and sensitive strain sensors based on carbon nanostructures (CNS)-polydimethylsiloxane (PDMS) nanocomposites.Abstract:
Here, we report highly strain-tolerant and sensitive strain sensors based on carbon nanostructures (CNS)-polydimethylsiloxane (PDMS) nanocomposites. CNS consist of clusters of aligned multiwall carbon-nanotubes (MWCNT) with high degree of entanglement and wall sharing between nanotubes. The unique features of CNS result in nanocomposites with very low electrical percolation threshold (0.05 wt% CNS), strong linear-piezoresistive-response up to 110% strain, and high sensitivity with gauge factor ranging from 8 to 47. We also present a simple analytical model for predicting resistivity evolution as a function of stretch considering incompressible hyperelastic behavior of CNS/PDMS nanocomposites. CNS/PDMS nanocomposites also show good hysteresis performance and stability up to 100 repetitive stretch/release cycles for 30% maximum strain. Tunable sensitivity and linear piezoresistivity coupled with high stretchability of CNS/PDMS nanocomposites demonstrated here suggest their potential for applications in wearable health and fitness monitoring devices.read more
Citations
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Journal ArticleDOI
Electrical conductivity of CNT/polymer composites: 3D printing, measurements and modeling
TL;DR: In this paper, electrical conductivity measurements and modeling aspects of carbon nanotube (CNT)/polymer composites enabled via fused filament fabrication (FFF) additive manufacturing are presented.
Journal ArticleDOI
Multifunctional performance of carbon nanotubes and graphene nanoplatelets reinforced PEEK composites enabled via FFF additive manufacturing
TL;DR: In this paper, the performance of carbon nanotubes (CNT) and Graphene nanoplatelets (GNP) reinforced PEEK composites enabled via fused filament fabrication (FFF) additive manufacturing (AM) utilizing in-house nanoengineered filaments is reported.
Journal ArticleDOI
Strong, stretchable and ultrasensitive MWCNT/TPU nanocomposites for piezoresistive strain sensing
TL;DR: In this paper, the authors report strong, stretchable and ultrasensitive thermoplastic polyurethane (TPU) nanocomposites reinforced with multiwalled carbon nanotubes (MWCNT) for piezoresistive strain sensing.
Journal ArticleDOI
Carbon Nanostructure-based Sensors: A Brief Review on Recent Advances
Vinícius D.N. Bezzon,Thaís Larissa do Amaral Montanheiro,Beatriz Rossi Canuto de Menezes,Renata Guimarães Ribas,Victor Augusto Nieto Righetti,Karla Faquine Rodrigues,Gilmar Patrocínio Thim +6 more
TL;DR: A brief review reporting the recent advances on the carbon nanostructured materials-based sensors covering recently published works is presented in this article, where several works dealing with experimental and theoretical data are reviewed and discussed.
Journal ArticleDOI
Boosting electrical and piezoresistive properties of polymer nanocomposites via hybrid carbon fillers: A review
TL;DR: In this paper, the effects of hybrid carbon nanofillers on electrical percolation threshold, electrical conductivities and piezoresistive sensitivity of PNCs are systematically discussed.
References
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Book
Introduction to percolation theory
Dietrich Stauffer,Amnon Aharony +1 more
TL;DR: In this paper, a scaling solution for the Bethe lattice is proposed for cluster numbers and a scaling assumption for cluster number scaling assumptions for cluster radius and fractal dimension is proposed.
Journal ArticleDOI
Highly Stretchable and Sensitive Strain Sensor Based on Silver Nanowire–Elastomer Nanocomposite
TL;DR: The applicability of the high performance strain sensors based on the nanocomposite of silver nanowire network and PDMS elastomer in the form of the sandwich structure is demonstrated by fabricating a glove integrated with five strain sensors for the motion detection of fingers and control of an avatar in the virtual environment.
Journal ArticleDOI
A review and analysis of electrical percolation in carbon nanotube polymer composites
TL;DR: In this paper, a comprehensive survey of electrical percolation of carbon nanotubes (CNT) in polymer composites is presented, together with an attempt of systematization.
Journal ArticleDOI
Highly Stretchable and Sensitive Strain Sensors Using Fragmentized Graphene Foam
TL;DR: In this paper, a highly stretchable and sensitive strain sensor is fabricated based on the composite of fragmentized graphene foam (FGF) and polydimethylsiloxane (PDMS).
Journal ArticleDOI
Highly Sensitive and Stretchable Multidimensional Strain Sensor with Prestrained Anisotropic Metal Nanowire Percolation Networks
TL;DR: A multidimensional strain sensor composed of two layers of prestrained silver nanowire percolation network with decoupled and polarized electrical response in principal and perpendicular directional strain is demonstrated.