Authors : D.V. Nandanwar1 , P. Modak1 , S. B. Kondawar2, S. R. Dhakate3 C. M. Dudhe4
Page Nos : 918-926
Description :
In the present investigation multi-walled carbon nanotubes (MWCNTs) –polyaniline nanocomposites was developed by compression molding technique of desired size. Initially the MWCNTS were functionalized by acid treatment to attached carboxylic functional groups on the surface of nanotubes to facilitate the interaction with polymer. These composite were characterized by scanning electron microscope (SEM), FTIR, and for electromagnetic interference (EMI) shielding. The experimental results show favorable interaction between PANI and different wt.% of functionalized MWCNT. The electrical conductivity was measured by four probe method, which shows that the electrical conductivities of PANI-MWCNTs composite continuously increase from 0.45 Scm-1 to 2.9 Scm-1 with increasing the wt% of MWCNTs from 0 to 12 wt. % respectively. The EMI shielding nano-composite was increases from 45 dB to 90 dB with increasing the nanotube content and it was absorption dominated. The investigation studies infer that MWCNTs-polyaniline nanocomposites can be used lightweight EMI shielding materials to protect electronic devices and components from electromagnetic radiation.
Keywords: Carbon Nanotubes, Polyaniline, Electrical Conductivity, EMI shielding.
