Influence of double-percolation phenomenon on shielding effectiveness of Ni-based conductive silicone rubber

Authors :: Liu Shun-Hua
Chen Guang-Yun
Li Peng
Source :: Acta Physica Sinica. 54:3332
Publication Year :: 2005
Publisher :: Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, 2005.
Abstract: By measuring the electrical resistivity of RTV silicone rubber with Ni powder, t he percolation threshold of Ni-based conductive silicone rubber was determined. When N234 was filled in Ni-based conductive silicone rubber,double-percolation p henomenon was found other than percolation law. After fitting of the experimenta l results,the mechanism of the double-percolation phenomenon was presumed. As fo r the shielding effectiveness of high conductive silicone rubber, the result sh ows that it can be described well with the Schelkunoff theory.The influence of double-percolation phenomenon on shielding effectiveness of the rubber was investigated.

Subjects :: Materials science
General Physics and Astronomy
Percolation threshold
Silicone rubber
chemistry.chemical_compound
Natural rubber
chemistry
Electrical resistivity and conductivity
Percolation
visual_art
Electromagnetic shielding
visual_art.visual_art_medium
Composite material
RTV silicone
Electrical conductor

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