Category: Transient Plane Source
Keywords: Carbon nanotubes, CNTs, differential scanning calorimeter, Differential scanning calorimeter (DSC), DMA, DSC, Dynamic Mechanical Analysis, Dynamic Mechanical Analysis (DMA), Fillers, Fourier transform infrared spectroscopy (FTIR), Fourier-Transform Infrared Spectroscopy, FTIR, mechanical properties, nanocomposites, Polyurethane, SAXS, Scanning Electron Microscope, Scanning electron microscope (SEM), SEM, Small-Angle X-Ray Scattering, Small-Angle X-Ray Scattering (SAXS), TGA, Thermal Conductivity, thermal constant analyser, Thermogravimetric Analysis, Thermogravimetric analysis (TGA), WAXS, Wide Angle X-Ray Scattering, Wide Angle X-Ray Scattering (WAXS)
Abstract: Polytetramethylene ether glycol (PTMEG) was used to functionalize multi-walled carbon nanotube (MWNT) by grafting to produce MWNT-g-PTMEG. These functionalized nanotubes were then dispersed in thermoplastic polyurethane (TPU) to form a TPU/MWNT nanocomposite. It was found that the functionalization resulted in improved dispersion of the nanotubes in the TPU material. The tensile strength and elongation at break of the nanocomposite were also enhanced by the addition of the nanotubes in comparison to pristine TPU. The thermal conductivity was enhanced by the addition of MWNTs in contents of 3 wt. % or higher, but appeared relatively unchanged at lower filler contents.
Reference: Plastics, Rubber and Composites, 19, 9 (2010) 400-410