A series of carbon black (CB) filled styrene butadiene rubber (SBR) composites have been prepared with different dosage of CB content, viz. 10, 20, 30, 50, 70, and 90 phr. The prepared composites have been characterized for electrical properties such as volume resistivity and breakdown voltage. The effect of volume fraction of conducting filler, temperature, and voltage on these properties were established. The normalized capacitance and breakdown voltage have been calculated theoretically using mathematical models and the results are correlated with the experimental results.
Tolori, T. and Hackam, R. (2001). Loss and Recovery of Hydrophobicity and Surface Energy of HTV Silicone Rubber , IEEE Trans. Dielectrics Electrical Insulat., 8(6): 1088-1097 .
2.
Harper, C. A. (1992). Handbook of Plastics, Elastomers and Composites,2nd edn., McGraw-Hill, Columbus, OH .
3.
Bernstorf, R. S. and Zhao, T. (1998). Aging Tests of Polymeric Housing Materials for Non-ceramic Insulators , IEEE Electrical Insulat. Mag., 14(2): 26-33 .
4.
Hackam, R. (1999). Outdoor High Voltage Composite Polymeric Insulators , IEEE Trans. Dielectrics Electrical Insulat., 6(5): 557-585 .
5.
Okamoto, T. , Koyama, M. , Inoue, N. , Takahashi, N. and Nakamura, S. (2001). Percolation Phenomena of Field Grading Materials made of two Kinds of Filler , Proc. Intl. Symp. on Elect. Insul. Materials (ISEIM2001), pp. 83-86 (in Japanese).
6.
Okamoto, T. , Sawa, F. , Tomimura, E. , Tamimoto, N. , Hishida, M. and Nakamura, S. (2003). Properties of High-Thermal Conductive Composite with Two Kinds of Fillers , Intl. Conf. on Properties and Applications of Dielectric Materials (ICPADM), Japan.
7.
Stauffer, D. and Aharony, A. (1992). Introduction to Percolation Theory, Taylor & Francis, London .
8.
Meyer, J. (1974). Stability of Polymer Composites as Positive-Temperature-Coefficient Resistors , Polym. Eng. & Sci., 14: 706-716 .
9.
Bueche, F. (1973). A New Class of Switching Materials , J. Appl. Phys., 44: 532-533 .
10.
Verhelst, W. F. (1976). Kunststoffe Intl., 66: 701-701 .
11.
Webman, L. , Jortner, J. and Cohen, M. H. (1997). Critical Exponents for Percolation Conductivity in Resistor Networks , Phys. Rev B, 16(6): 2593-2596 .
12.
Efros, L. and Shklovskii, B. I. (1976). Critical Behavior of Metal-Non-Metal Transition Thershold , Phys. Stat. Sol (B), 76: 475-485 .
13.
Beale, P. D. and Duxbury, P. M. (1998). Theory of Dielectric Breakdown in Metal-loaded Dielectrics , Phys. Rev. B: Condensed Matter, 37(6): 2785-2790 .
14.
Bowman, D. R. and Stroud, D. (1989). Physical Review B, 40(7): 4641-4641 .
15.
Rajagopal, C. and Sathyam, M. (1978). Studies on Electrical Conductivity of Insulator-Conductor Composites , Applied Physics, 49(11): 5536-5542 .
