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003			MX-MdCICY
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040			_cCICY
090			_aB-21058
245	1	0	_aIn situ thermoresistive characterization of multifunctional composites of carbon nanotubes
490	0		_vPolymer, 53(23), p.5367-5374, 2012
520	3		_aThe thermoresistive behavior of nanocomposites with electrically conductive networks of carbon nanotubes (CNTs)in a vinyl ester polymer matrix were characterized using an in situ electrical resistance measurement during thermomechanical analysis. A series of specimens above the electrical percolation threshold ranging from 0.10 to 1.00 wt percent CNT were studied. The results show the thermoresistive behavior is strongly dependent on the CNT concentration, thermal expansion and polymer segmental motion. At higher concentrations of carbon nanotubes the temperature coefficient of resistance (TCR)varied with temperature and could either be positive or negative while specimens with low CNT concentrations near the percolation threshold showed a near-zero but negative TCR. Since the nanocomposite bulk resistivity of the specimens is dominated by the tunneling resistance at CNT/CNT junctions the nanotubes effectively act as a network of sensors that can detect thermal transitions and other thermochemical changes in situ.
650	1	4	_aCARBON NANOTUBES
650	1	4	_aMULTIFUNCTIONAL COMPOSITES
650	1	4	_aELECTRICAL PROPERTIES
700	1	2	_aLasater, K. L.
700	1	2	_aThostenson, E. T.
856	4	0	_uhttps://drive.google.com/open?id=1pbc461qmUa7i9mY1wkyWrNO-DEx8RzoR&usp=drive_copy _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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