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Author

Kim, Myungsoo
Functional Intelligent Materials Lab(FIMLab)
Research Interests
  • Fiber-reinforced polymer composites and nanocomposites

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Manufacturing process improvement and mechanical modelling of multiwalled carbon nanotube/epoxy composites

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Title
Manufacturing process improvement and mechanical modelling of multiwalled carbon nanotube/epoxy composites
Author
Kim, MyungsooOkoli, O. I.Jack, D.Park, Young-Bin
Keywords
Experimental datum; Fracture surfaces; Manufacturing process improvement; Material response; Mechanical modelling; Mori-Tanaka models; Process optimisation; Process Variables
Issue Date
201306
Publisher
MANEY PUBLISHING
Citation
PLASTICS RUBBER AND COMPOSITES, v.42, no.5, pp.210 - 218
Abstract
Multiwalled carbon nanotube (MWNT) reinforced epoxy resin composites were fabricated and characterised. Several process variables were investigated using design of experiments. The MWNTs (0.5 wt-%) were dispersed in Epon 862 epoxy resin under various sonication conditions. Young's modulus, energy to failure, glass transition temperature T-g and storage modulus E' were assessed. The first three were selected in a design of experiment optimisation study. The results indicated that as the sonication intensity and the duration of sonication were increased, the material response of the MWNT/epoxy composite, specifically Young's modulus, energy and Tg, was enhanced. The fracture surfaces of the composites were examined using scanning electron microscopy. Improved dispersion was observed in samples fabricated with increased sonication intensities. The Mori-Tanaka model was used to predict the mechanical properties of the MWNT/epoxy composites and was found to be in reasonable agreement with experimental data. Nonetheless, the experimental results yielded slightly inferior properties to those from the model prediction.
URI
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DOI
http://dx.doi.org/10.1179/1743289811Y.0000000036
ISSN
1465-8011
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