| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5203353 | Polymer Degradation and Stability | 2009 | 7 Pages |
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 dissipation was 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 12Â GHz and compared with theoretical modeling. The highest shielding effectiveness at microwave frequency of these nanocomposites was 47Â dB which is realistic for defense applications like radar evasion.
Related Topics
Physical Sciences and Engineering
Chemistry
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Authors
A.A. Al-Ghamdi, Farid El-Tantawy, Nadia Abdel Aal, E.H. El-Mossalamy, Waleed E. Mahmoud,