A novel method for preparing conductive polyethylene (PE) composites has been developed. In the method

the powder of low melting point metal alloy (LMPA) is filled into the PE matrix by using twin screw extruder at a temperature below the melting point of the LMPA

and followed by a die drawing process at a temperature around the melting point of the metal alloy. It has been found that die drawing process

repeating the die drawing process and adding nano-fillers

such as montmorillonite (MMT) and multi-wall carbon nanotubes (MWCNTs)

all help reduce the metal particle size in the PE matrix

thus improve the conductivity of the composite. The conductivity improvement is attributed to an increased number of the smaller metal particles. Therefore

conductive composites of polymer/metal alloy/nano-filler with high conductivity are possible to be prepared by using the new method.