| 초록 |
Conductive polymer composites have drawn a great attention in applications for sensors, automobile, and packaging owning to their durability and lightweight properties. Conductive polymer composites with random conductive filler structure(r-CPC) usually demand high conductive filler contents to achieve percolation threshold, where transition from insulator to conductor occurs. This high filler contents lead to higher processing complexity and low economic feasibility. Segregated conductive polymer composites (s-CPC) have superiority over r-SPC due to their formation of conductive pathway with low filler contents. In this study, polypropylene(PP)/multi-walled carbon nanotube(MWCNT) segregated structure was fabricated via hot compaction. Segregated structure of PP/MWCNT composites with MWCNT conductive pathway could be examined through optical microscopy. Electrical conductivity was measured via 4-point probe, s-CPC demonstrated much lower percolation threshold over r-CPC. |
