Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지
DOI QR코드

DOI QR Code

Electrical Conduction Property of the Carbon Black-Filled Polyethylene Matrix Composites Below the Percolation Threshold

문턱스며들기 이하 카본블랙 충진 폴리에칠렌기지 복합재료의 전기전도 특성

  • Shin, Soon-Gi (Department of Advanced Materials Engineering, College of Samcheok, Kangwon National University)
  • 신순기 (강원대학교 공학대학 신소재공학과)
  • Received : 2010.04.12
  • Accepted : 2010.05.17
  • Published : 2010.05.25
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper two aspects of the percolation and conductivity of carbon black-filled polyethylene matrix composites will be discussed. Firstly, the percolation behavior, the critical exponent of conductivity of these composites, are discussed based on studying the whole change of resistivity, the relationship between frequency and relative permittivity or ac conductivity. There are two transitions of resistivity for carbon black filling. Below the first transition, resistivity shows an ohmic behavior and its value is almost the same as that of the matrix. Between the first and second transition, the change in resistivity is very sharp, and a non-ohmic electric field dependence of current has been observed. Secondly, the electrical conduction property of the carbon black-filled polyethylene matrix composites below the percolation threshold is discussed with the hopping conduction model. This study investigates the electrical conduction property of the composites below the percolation threshold based on the frequency dependence of conductivity in the range of 20 Hz to 1 MHz. There are two components for the observed ac loss current. One is independent of frequency that becomes prevalent in low frequencies just below the percolation threshold and under a high electrical field. The other is proportional to the frequency of the applied ac voltage in high frequencies and its origin is not clear. These results support the conclusion that the electrical conduction mechanism below the percolation threshold is tunneling.

Keywords

References

  1. Y. Song, T. W. Noh, S. I. Lee and J. R. Gaines, Phys. Rev. B, 33, 904 (1986). https://doi.org/10.1103/PhysRevB.33.904
  2. H. Bottger and V. V. Bryksin, Hopping Conduction in Solids, p.236, VCH, Verlagsgesellschaf (1985).
  3. A. L. Efros and B. I. Shklovski, Phys. Stat. Sol. (B), 76, 475 (1976). https://doi.org/10.1002/pssb.2220760205
  4. S. S. Shin, Kor. J. Mater. Res., 19, 644 (2009). https://doi.org/10.3740/MRSK.2009.19.12.644
  5. S. G. Shin, Kor. J. Inst. Met. Mater., (in press).
  6. J. P. Reboul, Carbon Black-Polymer Composites, p.80, ed. E. K. Sichel, Marcel Dekker, Inc., New York (1982).
  7. N. Prost, Carbon Black, pp.280, ed. J. B. Donnet, R. C. Bansel and M. J. Wang, Marcel Dekker, Inc., New York (1993).
  8. K. Miyasaki, K. Watanabe, E. Jojima, H. Aoda, M. Sumita and K. Ishikawa, J. Mater. Sci., 17, 1610 (1982). https://doi.org/10.1007/BF00540785
  9. K. Yoshida, Jpn. J. Appl. Phys., 30, 3482 (1982). https://doi.org/10.1143/JJAP.30.3482
  10. D. Stauffer and A. Aharony, Introduction to Percolation Theory, 2nd ed., p.884, Tayloer & Francis, London and Philadeiphia (1992).
  11. F. Ehrburger-Dolle, J. J. Lahsye and S. Misono, Carbon, 33, 1363 (1994).
  12. T. Nakai, T. Shiomoji, M. Tanka, K. Nakajiama and S. Kohinata, IMC 1994 Proceedings, Japan Omiya, p.167.
  13. H. Kenta, T. Nakajima, H. Kawabe and M. Ieda, Theory of Dieelectric Phenomena, 23 ed., p.241, Jpn. Inst. Elect. (1995).
  14. T. Ohtsuki and T. Keyes, J. Phys. A: Math. Gen., 17 L559 (1984). https://doi.org/10.1088/0305-4470/17/11/001
  15. D. J. Berman and Y. Imry, Phys. Rev. Lett., 39, 1222 (1977). https://doi.org/10.1103/PhysRevLett.39.1222
  16. M. Nakagawa, Polymer, 27, 97 (1978).
  17. D. A. Bruggeman, Ann. Phys., 24, 636 (1935)

Cited by

  1. Electrical and Mechanical Properties of Carbon Particle Reinforced Rubber for Electro-Active Polymer Electrode vol.37, pp.12, 2013, https://doi.org/10.3795/KSME-A.2013.37.12.1465
  2. Change of Percolation Threshold in Carbon Powder-Filled Polystyrene Matrix Composites vol.25, pp.3, 2015, https://doi.org/10.3740/MRSK.2015.25.3.119