Percolation and Film Formation Behaviors of MWNT/PS Nanocomposites

Uğur Ş., Yargi O., Pekcan O.

11th International Conference on the Mechanical Behavior of Materials (ICM), Como, İtalya, 01 Ocak 2011, cilt.10, ss.1709-1717 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 10
  • Doi Numarası: 10.1016/j.proeng.2011.04.285
  • Basıldığı Şehir: Como
  • Basıldığı Ülke: İtalya
  • Sayfa Sayıları: ss.1709-1717
  • Anahtar Kelimeler: PS Latex, Composite film, MWCNT, Conductivity, Photon Transmission, Percolation, NANOTUBE-POLYMER COMPOSITES, TEMPERATURE-DEPENDENCE, PHOTON TRANSMISSION, CARBON NANOTUBES, LATEX-PARTICLES, INTERDIFFUSION, INTERFACES, VISCOSITY
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This study involves the investigation of film formation and electrical conductivity properties of polystrene (PS) latex/multi-walled Carbon nanotube (MWNT) composites. Films prepared from PS/MWNT mixtures with different MWNT content were separately annealed above glass transition temperature of PS. Film formation stages of PS/MWNT composites were followed by monitoring the change in transmitted light intensity, I-tr. The surface conductivity of films was found to increase dramatically above 4 wt% MWNT following the percolation theory. The conductivity scales with the mass fraction of MWNT as a power law with exponent 2.27, extremely close to the value of 2.0 predicted by percolation theory. (C) 2011 Published by Elsevier Ltd. Selection and peer-review under responsibility of ICM11