Influence of Different Catalyst Supporters and Polymers on Electrical Behavior of MWCNT Composites

摘要

Four different polymer-coated multi-walled carbon nanotubes (MWCNTs) were prepared under various catalyst-supporter conditions for examining the conductivity of the nanocomposites. The dimensions of the initial Al(OH)(3) catalyst supporter, i.e., one of the final ternary catalysts, mainly determined the pristine MWCNT properties. The respective MWCNT-based composites with polycarbonate, high-density polyethylene, polypropylene, and low-density polyethylene generally exhibited remarkable catalyst support-dependent conductivity differences-approximately seven orders of magnitude, from 10(9.7) to 10(2.7). The degree of MWCNT dispersion is considered the key factor inducing the significant electrical differences.