بحث
Stability of New Electrostatic Discharge Protection and Electromagnetic Wave Shielding Effectiveness from Poly (vinyl Chloride)/Graphite/Nickel Nanoconducting Composites

A.A. Al-Ghamdi, Farid El-Tantawy, Nadia Abdel Aal, E.H. El-Mossalamy, Waleed E. Mahmoud
 

Abstract

 

Poly (vinyl Chloride)/graphite nanosheet/nickel (PVC/GN) nancomposites are new

alternative candidates for electrostatic charge dissipation and electromagnetic interference

shielding applications due to their lightweight, ease processing and tunable conductivities.

The structures of the nanocomposites were examined by means of scanning electron

microscopy (SEM) and X-ray analysis. The mechanical properties such as hardness,

modulus of elasticity and elongation at break as a function of GN content were examined.

The applicability of the nanocomposites as electrostatic charge dissipationwas tested in

terms of displaying the variation of decay voltage with time. In addition, the dielectric

properties such as real and imaginary permittivity of composites as functions of frequency

were investigated. Finally, the electromagnetic properties were measured in the frequency

range from 1 to 12 GHz and compared with theoretical modeling. The highest shielding

effectiveness at microwave frequency of these nanocomposites was 47 dB which is

realistic for defense applications like radar evasion.






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