E. Ilin, A. Bezrodniy, M. Predtechenskiy
Keywords: SWCNTs, thermoplastic polymer, conductivity, ultralow percolation
Summary:Carbon nanotubes (CNT) are of increasing interest due to their unique electrical and physico-mechanical properties. Single-wall carbon nanotubes (SWCNTs) are the most promising conductive and reinforcing agent for plastic based composites thanks to their lower percolation threshold in comparison with other carbon based additives. However, the industrial applications of SWCNTs have not been considered so far because of their high cost. The appearance of the TUBALLTM material, which is SWCNTs developed by OCSiAl, made use this material cost-effective. A number of physical methods such as HRTEM, Raman spectroscopy, TGA etc. applied in our study demonstrate high content and quality of the SWCNTs i.e. low defective, high purity and high diameter to length aspect ratio. In this report, we discuss SWCNTs application for the design of electro-conductive and reinforced thermoplastic and thermoset polymers based composites through the simple and common usable industrial techniques. These polymer based composites exhibit significantly low electrical resistance in the range of 108-102 Ω*cm at ultralow percolation threshold value of SWCNTs starting from 0.01 wt.%. Moreover, the loading of such small percentage of SWCNTs results the increase of physico-mechanical characteristics especially in comparison with other commercially available conductive carbon fillers.