Microwave Absorption Study of Polyaniline Nanocomposites with Different Dimension of Multiwalled Carbon Nanotubes

Abstract:

Polyaniline (PAni) Nanocomposites Containinganiline (Ani) Monomer and Hexanoic Acid (HA) Dopant were Successfullysynthesized by Using Chemical Oxidation Method. Titanium Dioxide (TiO₂)and Different Dimension of Multiwall Carbon Nanotubes (MWNT) Have been Added Inorder to Improve the Dielectric Permeability and Magnetic Permittivityproperties of the Pani Nanocomposites. Fourier Transform Infrared (FTIR) Andultraviolet-Visible (UV-Vis) Spectra Confirmed the Chemical Structure of Paninanocomposites. Conductivity and Magnetization Behavior were Investigated Byresistivity Meter and Vibrating Sample Magnetometer (VSM). Microwave Absorptionstudies were Carried out by Microwave Vector Network Analyzer (MVNA) from 0.5to 18 Ghz. among all the Pani Nanocomposites, Pani Nanocomposites with MWNT (D = 10-2- Nm, l = 5-15 μm) Shows Agood Reflection Loss (RL = -58 Db) at 7 Ghz with a Sharp and Narrow Peak due Tohigher Values of Magnetization (0.074 Emu/g) Andmoderate Electrical Conductivity (1.11 x 10^-2 S/cm)

• Periodical: Materials Science Forum (Volume 846)
• Pages: 465-470
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.846.465
• Online since: March 2016
• Authors: Yen Nee Koh, Nurrafiqah Mokhtar, Sook Wai Phang*
• Keywords: Conducting Polymer, Microwave Absorption Property, MWNT

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