Journal ArticleDOI
Self-sensing performance of MWCNT-low density polyethylene nanocomposites
Tejendra K. Gupta,Shanmugam Kumar,Amal Zakir Khan,Kartik M. Varadarajan,Wesley J. Cantwell +4 more
- Vol. 5, Iss: 1, pp 015703
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TLDR
In this paper, the authors demonstrate self-sensing performance of low density polyethylene (LDPE)-multiwalled carbon nanotubes (MWCNTs) nanocomposites for the first time.Abstract:
Carbon nanotubes (CNTs) based polymer nanocomposites offer a range of remarkable properties. Here, we demonstrate self-sensing performance of low density polyethylene (LDPE)-multiwalled carbon nanotubes (MWCNTs) nanocomposites for the first time. The dispersion of the CNTs and the morphology of the nanocomposites was investigated using scanning electron microscopy, x-ray diffraction and Raman spectroscopic techniques. The thermal properties were measured using thermal gravimetric analysis and differential scanning calorimetry and were found to increase with increasing wt% of MWCNTs in LDPE matrix. An overall improvement in ultimate tensile strength, yield strength and Young's modulus was found to be 59.6%, 48.5% and 129.3%, respectively for 5.0 wt% loading of MWCNTs. The electrical percolation threshold was observed at 1.0 wt% of MWCNTs and the highest electrical conductivity of 2.8 × 10−2 Scm−1 was observed at 5.0 wt% loading of MWCNTs. These piezo-resistive nanocomposites offer tunable self-sensing capabilities with gauge factors in the ranges of 17–52 and 42–530 in linear elastic (strain ~3%) and inelastic regimes (strain ~15%) respectively. Our demonstration would provide guidelines for the fabrication of low cost, self-sensing MWCNT-LDPE nanocomposites for potential use as civil water pipelines and landfill membranes.read more
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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
Microarchitected 3D printed polylactic acid (PLA) nanocomposite scaffolds for biomedical applications.
TL;DR: The results indicate that PLA nanocomposites could be a potential candidate for bone scaffold applications because of the synergetic effect of reinforcement of metallic/metallic alloy particles and acid treatment.
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
Electrical, mechanical and thermal properties of graphene nanoplatelets reinforced UHMWPE nanocomposites
TL;DR: In this article, the electrical, mechanical and thermal properties of ultrahigh-molecular-weight polyethylene (UHMWPE) nanocomposites reinforced with 0.1 and 10.0% graphene nanoplatelets are reported.
Journal ArticleDOI
Strong linear-piezoresistive-response of carbon nanostructures reinforced hyperelastic polymer nanocomposites
TL;DR: In this paper, the authors report highly strain-tolerant and sensitive strain sensors based on carbon nanostructures (CNS)-polydimethylsiloxane (PDMS) nanocomposites.
References
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Journal ArticleDOI
Exceptionally high Young's modulus observed for individual carbon nanotubes
TL;DR: In this article, the amplitude of the intrinsic thermal vibrations of isolated carbon nanotubes was measured in the transmission electron microscopy (TEM) and it was shown that they have exceptionally high Young's moduli, in the terapascal (TPa) range.
Journal ArticleDOI
Unusually High Thermal Conductivity of Carbon Nanotubes
TL;DR: An unusually high value, lambda approximately 6600 W/m K, is suggested for an isolated (10,10) nanotube at room temperature, comparable to the thermal conductivity of a hypothetical isolated graphene monolayer or diamond.
Journal ArticleDOI
Tensile loading of ropes of single wall carbon nanotubes and their mechanical properties
TL;DR: The mechanical response of 15 single wall carbon nanotube (SWCNT) ropes under tensile load was measured and strain data were obtained and they broke at strain values of 5.3% or lower.
Journal ArticleDOI
Electrical-Conductivity of Individual Carbon Nanotubes
TL;DR: In this paper, the authors reported four-probe measurements on single nanotubes made by lithographic deposition of tungsten leads across the tubes and found that each multi-shell nanotube has unique conductivity properties.
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.