Stability of new electrostatic discharge protection and electromagnetic wave shielding effectiveness from poly(vinyl chloride)/graphite/nickel nanoconducting composites

被引：118
作者：
Al-Ghamdi, A. A. [1 ]
El-Tantawy, Farid [2 ]
Aal, Nadia Abdel [3 ]
El-Mossalamy, E. H. [4 ]
Mahmoud, Waleed E. [1 ,2 ]
机构：
[1] King Abdulaziz Univ, Dept Phys, Fac Sci, Jeddah 21569, Saudi Arabia
[2] Suez Canal Univ, Dept Phys, Fac Sci, Ismailia, Egypt
[3] Suez Canal Univ, Fac Sci, Dept Chem, Ismailia, Egypt
[4] King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah 21569, Saudi Arabia
来源：
POLYMER DEGRADATION AND STABILITY | 2009年 / 94卷 / 06期
关键词：
Conducting graphite - nickel nanocomposites; Microstructure; Electrostatic discharge protection; Dielectric properties; Electromagnetic shielding; ELECTRICAL-CONDUCTIVITY; CARBON-BLACK; GRAPHITE; NANOSHEETS; NANOCOMPOSITE; POLYANILINE;
D O I：
10.1016/j.polymdegradstab.2009.02.012
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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 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. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：980 / 986
页数：7
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