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Tailoring vertically-aligned carbon nanotube growth for poly(dimethylsiloxane)-infiltrated nanocomposites

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Title: Tailoring vertically-aligned carbon nanotube growth for poly(dimethylsiloxane)-infiltrated nanocomposites
Author: Carey, Brent J.
Advisor: Ajayan, Pulickel M.
Degree: Master of Science thesis
Abstract: This thesis discusses the viability of the polymer infiltration nanocomposite preparation technique for aligned carbon nanotubes (A-CNTs) as produced by two methods: pre-deposited catalyst chemical vapor deposition (CVD), and vapor-phase CVD. Both types of growth furnaces were constructed, and the resultant A-CNT "forests" were impregnated with poly(dimethylsiloxane), a highly-compliant silicone elastomer. The survivability of the CNT alignment subsequent to the polymer infiltration was studied for the respective nanocomposites, and it was observed that the thin-walled CNTs produced by the pre-deposited catalyst CVD method were not robust enough to maintain alignment during the infiltration, in contrast to the thicker-walled vapor-phase-grown CNTs. The dynamic mechanical properties of the successfully-impregnated composites were then studied, and their strain- and frequency-dependent behavior was probed both transverse and longitudinal to the alignment direction of the CNTs, revealing distinct responses due to their anisotropy.
Citation: Carey, Brent J.. (2010) "Tailoring vertically-aligned carbon nanotube growth for poly(dimethylsiloxane)-infiltrated nanocomposites." Masters Thesis, Rice University. http://hdl.handle.net/1911/62220.
URI: http://hdl.handle.net/1911/62220
Date: 2010

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