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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    Titel :

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


    Beteiligte:
    Frankland, S.J.V. (Autor:in) / Herzog, M.N. (Autor:in) / Odegard, G.M. (Autor:in) / Gates, T.S. (Autor:in) / Fay, C.C. (Autor:in)


    Erscheinungsdatum :

    2005


    Format / Umfang :

    6 Seiten, 12 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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