The Fluidity and AC Impedance of Polypropylene Composites Filled with Activated Carbon Black

Abstract:

In this paper, carbon black was activated by grafting and coupling respectively. Then the grafted carbon black, coupled carbon black, together with the unmodified carbon black were filled into polypropylene to prepare three kinds of composites respectively. The measurements of Fourier Transform Infrared Spectroscopy (FTIR), melt flow index, and alternating current (AC) impedance were performed on the composites. From the FTIR spectra, it was shown that different groups are bonded to the surface of carbon black after activating treatment For the corresponding conductive composites，it was found that the variation of fluidity with carbon black content and temperature changed after the carbon black activation. The influence of carbon black activation on the AC impedance and fluidity of the composites was analyzed. The scheme describing the interaction between carbon black and polypropylene in composites was given according to the results mentioned above.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 634-643
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.634
• Online since: November 2012
• Authors: Nai Xiu Ding, Li Li Wang, Mao Sheng Zhan, Lei Li, Shuai Feng Xu
• Keywords: AC Impedance, Activation, Carbon Black (CB), Coupling, Fluidity, Grafting, Polypropylene (PP)

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