Dispersion of carbon nanotubes inpoly(ether ether ketone) and its effects on rheological and electrical properties
A range of multi-wall carbon nanotubes (MWNTs) and single-wall carbon nanotubes (SWNTs) reinforced high temperature semi-crystalline poly (ether ether ketone) (PEEK) were prepared by melt compounding process. The composites with high degree of nanotube dispersion show nearly five orders of magnitude increase in storage modulus and an abrupt increase of ten orders magnitude in electrical conductivity by adding only 2 wt% of nanotubes. Additionally, both the melt strength and the elongational viscosity can significantly increase by incorporating nanotubes. However, this increment effect strongly depends on the degree of dispersion of nanotubes in the polymer matrix.
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