| 초록 |
Electrically conductive cellulose papers were prepared by incorporating multi-walled carbon nanotubes (MWNTs) into bacterial cellulose pellicles produced by Acetobacter xylinum. This bacterial cellulose is expected to become a new industrial material on account of its unique structure and properties in terms of its purity, high crystallinity, ultrafine network, high mechanical stability and low density. Unlike most other previous works on simple blends of MWNTs with polymeric materials, we incorporated the MWNTs into cellulose pellicles in aqueous state, thereby allowing them to act as nanoscale fillers. Using electron microscopy the MWNTs were found to strongly adhere to the surface and inside of the cellulose pellicle. The conductivity of the composites measured by the four-probe method at room temperature was 1.4×10-1 S/cm, implying that the MWNTs were incorporated uniformly and densely in the pellicles. MWNT contents in composites were calculated using elemental analysis. |
