期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 20, 期 7, 页码 648-656出版社
SPRINGER
DOI: 10.1007/s10854-008-9780-4
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资金
- Ministry of Education, Science, and Technology [S1 08A01003210]
A series of styrene-butadiene rubber (SBR) composites have been prepared with different weight ratios of polyacetylene based conducting carbon black (CCB) (0-90 phr). The SBR-CCB systems are characterized for dimensional stability which is enhanced by increasing the CCB loading because of enhancement in polymer-filler interaction. The electrical properties such as dielectric constant (epsilon(r)), dissipation factor (tan delta) and dielectric loss (epsilon aEuro(3)) of the composites have been studied. The influence of different loading of CCB (0-90 phr), frequency of ac (100 Hz-30 MHz) and temperature (25-75 A degrees C) on the electrical properties was studied. An increase in dielectric constant and tan delta of the SBR composites was observed with increase in CCB content and ac frequency. This is due to enhancement of filler-filler interaction and the increase in continuity of conducting phase. The surface morphology has been studied using scanning electron microscopy (SEM).
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