Thermal and mechanical behavior of carbon-nanotube-filled latex Academic Article uri icon

abstract

  • AbstractSummary: Composite films were prepared from a mixture of poly(vinyl acetate) latex and SWNTs. SEM images reveal a segregated SWNT network that grows heavier with increasing concentration. Nanotube segregation is the result of excluded volume created by the much larger polymer particles in the latex. Thermal conductivity exhibits a sharp rise with increasing quantity of nanotubes, although the maximum value is only 10% greater than that of the polymer matrix due to large thermal interface resistance. Storage modulus exhibits a peak and subsequent drop due to pore formation. In the absence of porosity, the HalpinTsai model accurately predicts the composite modulus at 25C. The segregated network improves the composite modulus above Tg by nearly an order of magnitude with only 2 wt.% SWNT.Schematic illustration of a segregated network of carbon nanotubes.magnified imageSchematic illustration of a segregated network of carbon nanotubes.

published proceedings

  • MACROMOLECULAR MATERIALS AND ENGINEERING

author list (cited authors)

  • Grunlan, J. C., Kim, Y., Ziaee, S., Wei, X., Abdel-Magid, B., & Tao, K.

citation count

  • 72

complete list of authors

  • Grunlan, Jaime C||Kim, Yeon-Seok||Ziaee, Saeed||Wei, Xin||Abdel-Magid, Beckry||Tao, Kun

publication date

  • September 2006

publisher