2011
DOI: 10.1002/app.33437
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Electrical conductivity and major mechanical and thermal properties of carbon nanotube‐filled polyurethane foams

Abstract: The carbon nanotubes (CNTs)/rigid polyurethane (PU) foam composites with a low percolation threshold of $ 1.2 wt % were prepared by constructing effective conductive paths with homogeneous dispersion of the CNTs in both the cell walls and struts of the PU foam. The conductive foam presented excellent electrical stability under various temperature fields, highlighting the potential applications for a long-term use over a wide temperature range from 20 to 180 C. Compression measurements and dynamical mechanical … Show more

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Cited by 83 publications
(70 citation statements)
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“…The thickness of the foam is selected such that the radiation is optimized. The filing factor of the CB and the MWCNT plays an important role [11] [12], they are selected optimally. If the concentrations are too high the foam becomes inflexible and the lifetime of the foam is also get reduced.…”
Section: Preparation Of Cb and Mwcnt Loaded Electro Conductive Foammentioning
confidence: 99%
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“…The thickness of the foam is selected such that the radiation is optimized. The filing factor of the CB and the MWCNT plays an important role [11] [12], they are selected optimally. If the concentrations are too high the foam becomes inflexible and the lifetime of the foam is also get reduced.…”
Section: Preparation Of Cb and Mwcnt Loaded Electro Conductive Foammentioning
confidence: 99%
“…Moreover it was also assumed that the conductive materials are purely conductive so that there are no diffusing current components. Also the electrical conductivities of the CB/MWCNT are dependent of the temperature and has nonlinear characteristics [11]. The electrodes have linear temperature dependent electrical conductivities.…”
Section: Electro Thermal Model Of the Ftrmentioning
confidence: 99%
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“…Carbon nanotubes (CNTs) are lightweight materials, that have strong microwave absorption properties in the GHz frequency range [3,4]. Nanometer-scale diameter CNTs can avoid the limitation of large-sized conventional conductivity fillers, and their extremely large aspect ratio allows low loading of fillers to provide the desired electrical conductivity without sacrificing other inherent properties of the polymer.…”
Section: Introductionmentioning
confidence: 99%
“…Electrical conductivity of nano-composite foams is much less studied. Works on the electrical properties of nanoreinforced polymeric foams are rather sporadic [3][4][5][6][7][8][9][10]. The relationship between the resulting electrical conductivity and the density of the rigid foams for given CNT concentrations was reported in [6] but only recently described further [10].…”
mentioning
confidence: 99%