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https://hdl.handle.net/1822/32253
Título: | Comparative studies on the processing and performance of carbon nanotube and nanofibre based multi-scale composites |
Autor(es): | Rana, S. Bhattacharyya, A. Parveen, Shama Fangueiro, Raúl Alagirusamy, R. Joshi, Mangala |
Palavras-chave: | Multi-scale composites Carbon nanotube Mechanical properties Thermal properties Wear performance |
Data: | 2014 |
Editora: | European Conference on Composite Materials (ECCM) |
Resumo(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. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/32253 |
ISBN: | 9788461697984 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DET/2C2T - Comunicações em congressos internacionais com arbitragem científica |
Ficheiros deste registo:
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16_2014 Comparative studies on the processing and performance of carbon nanotube and nanofibre based multi-scale composites.pdf Acesso restrito! | Comparative studies on the processing and performance of carbon nanotube and nanofibre based multi-scale composites | 184,63 kB | Adobe PDF | Ver/Abrir |