Abstract
Aiming at improving the surface antistatic property of epoxy resins by a low dosage of antistatic agents, a novel strategy was carried out by utilizing an antistatic agent with a magnetic material, functional multi-wall carbon nanotubes with Fe3O4-modified polyaniline (MWCNTs@PANI-SH@Fe3O4). Here, the MWCNTs@PANI-SH@Fe3O4 was evenly mixed, dispersed into the epoxy resin and did not form a conductive network in the resin matrix due to the less additive amount of the MWCNTs@PANI-SH@Fe3O4; in such a case, we put the mixture above in a magnetic field, and the MWCNTs@PANI-SH@Fe3O4 had directional movement along the direction of the magnetic field to the surface layer of epoxy resin. When the amount of the magnetic antistatic agent per unit volume increased to a certain extent, the conductive network was formed. The surface resistivity was decreased to 6.8 × 108 Ω sq−1 at 0.3 wt% concentration of MWCNTs@PANI-SH@Fe3O4.
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