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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vallés, Cristina
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024A data-driven model on the thermal transfer mechanism of composite phase change materialscitations
- 2024A data-driven model on the thermal transfer mechanism of composite phase change materialscitations
- 2023Tribology of Copper Metal Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switchescitations
- 2020PMMA-grafted graphene nanoplatelets to reinforce the mechanical and thermal properties of PMMA compositescitations
- 2019Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shieldingcitations
- 2018Insights into crystallization and melting of high density polyethylene/graphene nanocomposites studied by fast scanning calorimetrycitations
- 2016Effect of the C/O ratio in graphene oxide materials on the reinforcement of epoxy-based nanocompositescitations
- 2014Few layer graphene-polypropylene nanocomposites: the role of flake diametercitations
- 2014The rheological behaviour of concentrated dispersions of graphene oxidecitations
- 2013Graphene oxide and base-washed graphene oxide as reinforcements in PMMA nanocompositescitations
- 2012Reduced graphene oxide films as solid transducers in potentiometric all-solid-state ion-selective electrodescitations
- 2011Simultaneous reduction of graphene oxide and polyaniline: Doping-assisted formation of a solid-state charge-transfer complexcitations
- 2011Graphene: 2D-building block for functional nanocomposites
- 2009Effects of partial and total methane flows on the yield and structural characteristics of MWCNTs produced by CVDcitations
- 2009Processing route to disentangle multi-walled carbon nanotube towards ceramic compositecitations
- 2008Effects of partial and total methane flows on the yield and structural characteristics of MWCNTs produced by CVDcitations
- 2007CVD production of double-wall and triple-wall carbon nanotubescitations
- 2007CVD production of double-wall and triple-wall carbon nanotubescitations
- 2006Synthesis and properties of optically active polyaniline carbon nanotube compositescitations
Places of action
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article
Processing route to disentangle multi-walled carbon nanotube towards ceramic composite
Abstract
Multi-walled carbon nanotubes were highly aggregated into ropes after their synthesis by chemical vapour deposition and, therefore, two different methods for disentangling the bundles of nanotubes were studied. One method compared the use of mild and vigorous mechanical treatments in ethanol and the other one employed dispersants in aqueous media. For comparison purposes and according to their different exfoliating behaviour, sodium dodecyl sulphate and gum arabic were selected as dispersants. The results evidenced that mechanical sonication was insufficient for disentangling the ropes, whereas, the combined action of mild sonication in an ultrasonic bath with the addition of gum arabic to an aqueous suspension containing nanotubes improved the exfoliating performance. Stable suspensions of unbundled multi-walled carbon nanotubes were obtained adding only 0.05 wt% of gum arabic with a dispersant/MWNTs concentration ratio of 0.25. These values corresponded to a reduction in the dispersant concentration between 1 to 2 orders of magnitude compared to those commonly employed. In addition, a processing route for manufacturing dense and homogenous silicon nitride composites using spark plasma sintering with 1.8 vol% of multi-walled carbon nanotubes almost free of organics was developed without nanotubes degradation and aggregation. © 2009 American Scientific Publishers.