Synthesis, mechanical testing, and modeling have been performed for a carbon nanotube material in which the nanotubes are functionalized with variable stiffness tethers (VST) capable of cross-linking the nanotubes. Tests using nanoindentation indicated a six-fold enhancement in the storage modulus when comparing the base material (the cross-linking agent with no nanotubes) to the composite (functionalized nanotube material) that contained 5.3 wt% of nanotubes. To understand how crosslinking the nanotubes may further alter the stiffness, a model of the system was constructed using nanotubes crosslinked with the VST. The model predicted that for a composite with 5 wt% nanotubes at random orientations, crosslinked with the VST, the bulk Young's modulus was reduced to 30% that of the non-crosslinked equivalent.


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    Title :

    Synthesis, characterization, and modeling of nanotube materials with variable stiffness tethers


    Contributors:
    Frankland, S.J.V. (author) / Herzog, M.N. (author) / Odegard, G.M. (author) / Gates, T.S. (author) / Fay, C.C. (author)


    Publication date :

    2005


    Size :

    6 Seiten, 12 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Synthesis, Characterization, and Modeling of Nanotube Materials With Variable Stiffness Tethers

    Frankland, S. J. V. / Herzog, M. N. / Odegard, G. M. et al. | British Library Conference Proceedings | 2005


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