Electrically conductive nano graphite-filled bacterial cellulose composites
A unique three dimensional (3D) porous structured bacterial cellulose (BC) can act as a supporting material to deposit the nanofillers in order to create advanced BC-based functional nanomaterials for various technological applications. In this study, novel nanocomposites comprised of BC with exfoliated graphite nanoplatelets (xGnP) incorporated into the BC matrix were prepared using a simple particle impregnation strategy to enhance the thermal properties and electrical conductivity of the BC. The flake-shaped xGnP particles were well dispersed and formed a continuous network throughout the BC matrix. The temperature at 10% weight loss, thermal stability and residual ash content of the nanocomposites increased at higher xGnP loadings. The electrical conductivity of the composites increased with increasing xGnP loading (attaining values 0.75 S/cm with the addition of 2 wt.% of xGnP). The enhanced conductive and thermal properties of the BC–xGnP nanocomposites will broaden applications (biosensors, tissue engineering, etc.) of BC and xGnP.
Citation: Kiziltas, E.E., Kiziltas, A., Rhodes, K., Emanetoglu, N.W., Blumentritt, M., & Gardner, D.J. (2016). Electrically conductive nano graphite-filled bacterial cellulose composites. Carbohydrate polymers, 136, 1144-51.