2010
DOI: 10.1002/app.31923
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Relaxation behavior of conductive carbon black reinforced chlorosulfonated polyethylene composites

Abstract: Dynamic mechanical analysis and dielectric relaxation spectra of conductive carbon black reinforced chlorosulfonated polyethylene (CSM) composites were used to study their relaxation behavior as a function of temperature and frequency, respectively. A marginal increase in glass transition temperature has been observed upto 30 phr carbon black filled polymer composite, beyond which it decreases, which has been explained on the basis of aggregation of filler particles in the polymer matrix. The strain dependent … Show more

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Cited by 16 publications
(12 citation statements)
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“…Beyond 20 phr CB loaded AEM composite, a continuous conductive path is developed due to close contact between the CB particles in the polymer matrix. This observation appears to be in good agreement with the electrical properties 35…”
Section: Resultssupporting
confidence: 87%
“…Beyond 20 phr CB loaded AEM composite, a continuous conductive path is developed due to close contact between the CB particles in the polymer matrix. This observation appears to be in good agreement with the electrical properties 35…”
Section: Resultssupporting
confidence: 87%
“…The real part represents the bulk resistance (R b ), and the imaginary part represents the reactance arising from the capacitive or inductive nature of the system. 38 R b can be determined from the study of the variation of the impedance with frequency. The electrical conductivity of the polymeric film can be calculated by the following equation:…”
Section: Impedance Spectroscopy Measurementsmentioning
confidence: 99%
“…Percolation theory is based on the development of a conductive network formed by electron transport paths through the volume of the sample. 38 The electrical properties of polymer nanocomposites are strongly dependent on the distribution of the conductor filler in the polymer matrix. It is fundamental that filler particles contact each other to form conductive networks because these particles are dispersed on an insulating polymer matrix.…”
Section: Articlementioning
confidence: 99%
“…And it is observed in EPDM with 59% of ethylene, peroxide DTBPH at concentration of 60 g and higher, reaches the highest values. At mix of 75% of ethylene in EPDM with peroxide DTBPIB, its dielectric percolation plot can be resolved into three regions: (1) inductive region, which explains the decrease in resistivity at lower level of peroxide loadings, that at the virgin base matrix was due to transportation of the small number of charged particles through the system; (b) percolation region, which explains the increase in dielectric conductivity sharply due to the formation of continuous conductive networks in insulating material; (c) saturation region, which represents the upper part of the dielectric percolation plot explaining the marginal effect on electrical conductivity on further addition of conductive component . For peroxide DTBPIB the dielectric percolation limits moves further with increasing ethylene content of EPDM.…”
Section: Resultsmentioning
confidence: 99%