MWNTs were first used as electrically conductive
fillers in plastics, taking advantage of their
high aspect ratio to form a percolation network
at concentrations as low as 0.01 weight percent
(wt %). Disordered MWNT-polymer composites
reach conductivities as high as 10,000 S m–1 at
10 wt % loading (34). In the automotive industry,
conductive CNT plastics have enabled
electrostatic-assisted painting of mirror housings,
as well as fuel lines and filters that dissipate electrostatic
charge. Other products include electromagnetic
interference (EMI)–shielding packages
and wafer carriers for the microelectronics industry.