Polymer Nanohybrids With High Electrical Conductivities

Abstract

Multiwalled carbon nanotube (MWCNT)/Nylon-6 nanohybrids were prepared by in situ polymerization under microwave irradiation. The effect of time and power of irradiation on the surface conductivity of the nanohybrid was studied. It was observed that the resistivity increases with irradiation time at low microwave power (200W). On the other hand, at high power (600W) an opposite behavior was observed. And at intermediate power (400W) the resistivity was independent of the irradiation time. Resistivity values range from 102 to 101 Ω/sq. This behavior was associated with the polymer nanocoating covering the surface of the carbon nanotubes.

Toward Greener Chemistry Methods for Preparation of Hybrid Polymer Materials Based on Carbon Nanotubes

“…In this context, Yañez-Macías et al [31,32] prepared Nylon-6/MWCNTs hybrid material films with high electrical conductivities (values ranged from 10 -9 to 10 -7 S/cm) using this combined process. In that work, the MWCNTs were also previously pre-dispersed using the method developed by Ávila-Orta et al The influence of microwave power on polymerization was studied for 200, 400 and 600 W. Figure 5 shows STEM images of a film made from Nylon-6/MWCNTs hybrid material obtained after 90 min of reaction at 600 W. The image shows as the MWCNTs are interconnected and coated by Nylon-6.…”