Short Communication

Colloid and Polymer Science

, Volume 291, Issue 12, pp 3005-3011

Enhancing the conductivity of isotactic polypropylene/polyethylene/carbon black composites by oscillatory shear

  • Shilin HuangAffiliated withCollege of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University
  • , Zhengying LiuAffiliated withCollege of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University Email author 
  • , Shaodi ZhengAffiliated withCollege of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University
  • , Mingbo YangAffiliated withCollege of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University

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Abstract

The influence of oscillatory shear on the conductivity of the isotactic polypropylene/polyethylene/carbon black composites is studied. It is found that the oscillatory shear under high strain amplitude can enhance the conductivity of the ternary composites with a HDPE/CB concentration in the percolation region. This is related to the fact that the high-strain oscillatory shear can improve the continuity of the conductive HDPE/CB phase in the composites. This finding has not been previously reported, and it may be used in industry to improve the conductivity of the ternary conductive composites with a low filler loading.

Keywords

Conductivity Composite Rheology Shear Morphology