Peer-Reviewed Journal Details
Mandatory Fields
Xu, J;Razeeb, KM;Roy, S
2008
September
Journal Of Polymer Science Part B-Polymer Physics
Thermal properties of single walled carbon nanotube-silicone nanocomposites
Validated
WOS: 30 ()
Optional Fields
ELASTOMERIC COMPOSITES CRYSTALLIZATION NANOSTRUCTURES BEHAVIOR RUBBER FILLER
46
1845
1852
The effect of single walled carbon nanotube (SWCNT) fillers on the low temperature thermal properties and curing behavior of SWCNT-silicone nanocomposite are reported for the first time. The SWCNT-silicone composites were prepared by different mixing procedures and characterized by differential scanning calorimetry (DSC). Solution mix, with the aid of sonication and soaking achieved better dispersion of SWCNTs in the silicone. The adding of SWCNTs in polymer seriously hindered the curing of silicone elastomer. The hindrance increased with increasing concentration of SWCNT and the quality of dispersion. The glass transition temperatures (T-g) of the nanocomposites were found to be independent of the SWCNT addition, although, the steps in the heat capacity (Delta c(p)) of the glass transition were smaller with increasing SWCNTs concentration. The melt crystallization behavior was strongly dependent on the concentration and dispersion of SWCNT in the polymer. The cooling scan showed that the higher concentration and the better dispersion of SWCNTs in the silicone resulted in higher percentage of melt crystallization of this nanocomposite. The correlation of the change of thermal propel-ties to the dispersion of SWCNTs in polymer may be used to determine the quality of SWCNT dispersion in silicone polymer. (C) 2008 Wiley Periodicals, Inc.
HOBOKEN
0887-6266
10.1002/polb.21519
Grant Details