Fabrication and Properties of Composites of Poly(ethylene oxide) and Functionalized Carbon Nanotubes

Geng, Huaizhi; Rosen, Rachel A.; Zheng, Bo; Shimoda, Hideo; Fleming, L.; Liu, Jie; Zhou, Otto

doi:10.1002/1521-4095(20021002)14:19<1387::aid-adma1387>3.0.co;2-q

Cited by 296 publications

(191 citation statements)

References 3 publications

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“…These composites containing 1 wt% of SWCNTs show a 153% increase in Young's modulus and 103% increase in tensile strength. Reinforcement effects were also observed by adding of CNTs in polystyrene [64], epoxy resin [65], poly (ethylene oxide) [66]. Nevertheless, for many polymer/CNTs nanocomposites a critical CNTs content in the matrix could be found when the CNT reinforcement effect on randomly oriented polymer/ CNTs composites was studied.…”

Section: Mechanical Properties Of Nanocompositesmentioning

confidence: 99%

Preparation and characterization of nanocomposites based on COOH functionalized multi-walled carbon nanotubes and on poly(trimethylene terephthalate)

Szymczyk¹,

Rosłaniec²,

Zenker³

et al. 2011

Express Polym. Lett.

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Poly(trimethylene terephthalate) nanocomposites containing COOH functionalized multi-walled nanotubes were synthesized with in situ polymerization method. The microstructure of the nanocomposites was studied by SEM, in terms of the dispersion state of the nanotubes and the polymer–nanotube interface. The thermal behaviour, mechanical properties and conductivity of these resultant PTT/MWCNTs nanocomposites were studied. The effect of the presence of MWCNTs on cold crystallization of PTT was monitored by dielectric spectroscopy. From thermal analysis study, it is found that the melting temperature and glass transition temperature are not significantly affected by the addition of MWCNTs. The crystallization temperature of PTT matrix is affected by the presence of CNTs. Nanocomposites have slightly higher degree of crystallinity than neat PTT and their thermo-oxidative stability is not significantly affected by the addition of MWCNTs. The study of the isothermal cold crystallization of amorphous PTT and its nanocomposites monitored by dielectric spectroscopy reveals that the presence of MWCNTs have influence on crystallization rate, especially at higher concentration (0.3 wt%). In comparison with neat PTT, the MWCNTs reinforced nanocomposites posses higher tensile strength and Young’s modulus at low MWCNTs loading (0.05–0.3 wt%). In addition, all nanocomposites show reduction of brittleness as compared to the neat PTT. The electrical percolation threshold was found between 0.3 and 0.4 wt% loading of MWCNTs

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Section: Mechanical Properties Of Nanocompositesmentioning

confidence: 99%

Preparation and characterization of nanocomposites based on COOH functionalized multi-walled carbon nanotubes and on poly(trimethylene terephthalate)

Szymczyk¹,

Rosłaniec²,

Zenker³

et al. 2011

Express Polym. Lett.

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“…Potential technical applications in the areas of molecular electronic devices [2][3][4][5][6], nanocomposites [7][8][9][10], electron field emission [11][12][13][14][15] have been proposed or explored. In addition, because of the nature of their structure and chemical bonding, carbon nanotubes 2 are also interesting 1D host materials for lithium intercalation, and several groups have already investigated the application of carbon nanotubes as the anode for lithium batteries [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

CVD growth of carbon nanotubes directly on nickel substrate

Pan

2005

Materials Letters

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Chemical vapor deposition (CVD) growth of carbon nanotubes directly on nickel substrates was carried out at different temperatures. Effects of temperature on the growth of carbon nanotubes were investigated and the nucleation and growth mechanism of carbon nanotubes at different temperature ranges were also discussed. Based on the growth mechanism of nanotubes, small amount of Fe nanoparticles were deposited on the nickel substrate to introduce more nucleation sites at elevated temperature, and the density of nanotubes on the surface of the substrate was greatly improved.

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“…Although enhanced strength was observed in SWNT-polymethylmethacrylate (PMMA) composites [7], SWNT-epoxy and MWNT-epoxy composites are typically weaker or only slightly stronger than the pristine epoxy [8,9,10]. This has been attributed to a weak nanotube-matrix interaction but may also reflect processing difficulties that result in poor SWNT dispersion [11]. We report here our results on the thermal and mechanical properties of SWNT-epoxy composites.…”

mentioning

confidence: 99%

Carbon nanotube composites for thermal management

Biercuk

Llaguno

Radosavljević

et al. 2002

Applied Physics Letters

1,600

822

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Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt% unpurified SWNT material show a 70% increase in thermal conductivity at 40K, rising to 125% at room temperature; the enhancement due to 1 wt% loading of vapor grown carbon fibers is three times smaller. Electrical conductivity data show a percolation threshold between 0.1 and 0.2 wt% SWNT loading. The Vickers hardness rises monotonically with SWNT loading up to a factor of 3.5 at 2 wt%. These results suggest that the thermal and mechanical properties of SWNT-epoxy composites are improved, without the need to chemically functionalize the nanotubes. a) present address:

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Fabrication and Properties of Composites of Poly(ethylene oxide) and Functionalized Carbon Nanotubes

Cited by 296 publications

References 3 publications

Preparation and characterization of nanocomposites based on COOH functionalized multi-walled carbon nanotubes and on poly(trimethylene terephthalate)

Preparation and characterization of nanocomposites based on COOH functionalized multi-walled carbon nanotubes and on poly(trimethylene terephthalate)

CVD growth of carbon nanotubes directly on nickel substrate

Carbon nanotube composites for thermal management

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