Synthesis and Dielectric Properties of PPy/TiO₂ Composite

Abstract:

TiO₂/PPy composite was prepared by in situ polymerization of pyrrole on TiO₂ microparticles. The results show that PPy chains have ordered arrangement to some extent. The average diameter of PPy microspheres is roughly 500 nm. TiO₂ microspheres obtained are anatase-type. PPy/TiO₂ composite particles are similar to spheres and there is some reunite phenomenon. The tanδ_e value for TiO₂/PPy composite is higher than PPy in the frequency range of 8.2-12.4 GHz and it has achieved a maximum of 0.57 at 11.9 GHz.

• Periodical: Applied Mechanics and Materials (Volumes 727-728)
• Pages: 38-41
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.727-728.38
• Online since: January 2015
• Authors: Hai Tao Zhao, Rui Ping Liu, Qiao Wang, Kai Xin Yang
• Keywords: Dielectric Property, Polypyrrole, Situ Polymerization, TiO₂

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