IEEE Electron Device Letters · 2013 · 98 citations · 10 references
Natural SciencesMaterials EngineeringMaterials ScienceHeat TransferNanomaterialsNanotechnologyCarbon NanomaterialsCarbon NanotubesComposite MaterialsNanocompositesNanotubesThermal Properties Of MaterialsCarbon Nanotube CompositesCarbon Nanotube Electrical ConductivityCarbon Nanotube NanocompositesCarbon Nanotube Thermal ConductivityElectrical Conductivity Of NanotubesElectrical Percolation ThresholdPercolationThermal Properties
Highly conducting carbon nanotubes (CNTs)/polydimethylsiloxane (PDMS) composite with a low concentration (5.7 vol.%) has been shown to be applicable in a highly controllable electric heating element. Due to a high shear-processing technique for mixing CNTs into an uncured PDMS matrix, the CNT/PDMS composites have a fairly uniform dispersion and no agglomeration of CNTs. The percolation threshold of the prepared CNT/PDMS composite is achieved ~ 0.03 vol.%, which is one of the lowest values previously reported in the literature. The fabricated CNT/PDMS composites can be quickly heated from room temperature to 200°C within 30 s by applying a DC voltage of 12 V. In addition, the CNT/PDMS composite show good thermal stability and repeatability during a long-term heating test. Our proposed CNT/PDMS composites could be used as a basis for light-weight and flexible heating-unit applications.
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