Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/32253

TitleComparative studies on the processing and performance of carbon nanotube and nanofibre based multi-scale composites
Author(s)Rana, S.
Bhattacharyya, A.
Parveen, Shama
Fangueiro, Raúl
Alagirusamy, R.
Joshi, Mangala
KeywordsMulti-scale composites
Carbon nanotube
Mechanical properties
Thermal properties
Wear performance
Issue date2014
PublisherEuropean Conference on Composite Materials (ECCM)
Abstract(s)The present research compares the processing and various properties of carbon/epoxy multiscale composites developed incorporating vapor-grown carbon nanofibres (VCNFs) and single-walled carbon nanotubes (SWCNTs). CNFs and SWCNTs (0.5-1.5 wt. %) were dispersed within epoxy resin using a combination of ultrasonication and mechanical stirring in the presence of a non-ionic surfactant and the nanomaterial/resin dispersions were used to impregnate carbon fabrics in order to develop multi-scale composites. It was observed from the experimental results that SWCNTs needed much longer dispersion treatment as compared to CNFs; however, the improvement in properties in case of CNT based multi-scale composites was also much higher. Incorporation of up to 1.5 wt.% of CNT within carbon/epoxy composites led to improvements of 46% in elastic modulus, 9% in tensile strength, 150% in breaking strain, 170% in toughness, 95% in storage modulus (at 25°C), 167% in thermal conductivity and also significant improvements in the wear performance of composites. Additionally, the modeling approach showed that the multi-scale composites, especially containing SWCNTs, presented elastic modulus very close to the predicted values.
TypeConference paper
URIhttp://hdl.handle.net/1822/32253
ISBN9788461697984
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:DET/2C2T - Comunicações em congressos internacionais com arbitragem científica

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