Thermal and Mechanical Behavior of Carbon‐Nanotube‐Filled Latex Academic Article uri icon

abstract

  • 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 Halpin-Tsai model accurately predicts the composite modulus at 25°C. The segregated network improves the composite modulus above Tg by nearly an order of magnitude with only 2 wt.-% SWNT. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.

author list (cited authors)

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

citation count

  • 69

publication date

  • September 2006

publisher