期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2013
卷号：4
期号：5
页码：709-714
出版社：University of Mohammed Premier Oujda
摘要：Samples of butyl rubber(IIR)/ graphite powder were prepared using two different methods in bulk and membrane fo rms. The dielectric properties were studied in the frequency range 102- 2×105Hz. The behavior of the dielectric constant and the AC conductivity were found to be described by the well-kno wn percolation theory. The percolation threshold for both types of samples was found to be around 0.25. A deviation in the value of the percolation exponent form the universal value was found and this also was explained
