Study of the Thermally Stimulated Depolarization Current (TSDC) for composites of Acrylonitrile Butadiene Rubber (NBR) loaded with HAF

作者：Amin M; Nasr G M; El Shokrofy K M; Mansour Sh A^*

来源：Iranian Journal of Science and Technology Transaction A-Science, 2013, 37(A3): 313-318.

• Conductive elastomers TSDC
• acrylonitrile butadiene rubber (NBR)
• HAF

The thermally stimulated discharge (TSDC) current is studied for acrylonitrile butadiene rubber (NBR) loaded with different high abrasion furnace carbon black (HAF). TSDC peak appears only for higher HAF contents %26gt;60phr (70 and 80phr of HAF contents), the TSDC spectra consist of a sharp peak corresponding to a peak temperature T-m, which is slightly shifted to higher temperature for 70phr loaded NBR samples and to lower temperature for 80phr loaded NBR sample, with poling field (10V/cm to 50V/cm). The activation energy U and relaxation time tau for TSDC peak were calculated using the initial rise method. The calculated values of U are nearly constant for sample 70phr and slightly increase for sample 80phr with increasing poling field E-p. The calculated values of tau at peak temperature T-m, are nearly constant for two samples (70phr %26 80phr) with different poling field, whereas the calculated values of relaxation time tau at T-0 = 300K increased with increase of poling field.

• 出版日期2013