Abstract: Blends of metallocene polyethylene / low-density polyethylene / carbon black (mPE/PE-LD/CB) composites were prepared in a rheometer mixer. The effect of blending temperature, speed, and other process factors on rheological properties of mPE/PE-LD/CB composite was studied and the crystallinity and morphology of the composite was studied by differential scanning calorimetry and scanning electron microscopy, while the surface resistance, volume resistance and mechanical properties of the composite were tested. When the mixer speed was 30 r/min, temperature was 180 ℃, mixing time was 10 min, the crystallinity, electrical conductivity, and mechanical properties of the composite increased with increasing mPE content.

Key words: metallocene polyethylene, low-density polyethylene, carbon black, composite, preparation, property, technology