문턱스며들기 이하 카본블랙 충진 폴리에칠렌기지 복합재료의 전기전도 특성

신순기; Soon-Gi Shin

Korean Journal of Materials Research, Vol.20, No.5, 271-277, May, 2010

DOI10.3740/MRSK.2010.20.5.271 Export Citation

문턱스며들기 이하 카본블랙 충진 폴리에칠렌기지 복합재료의 전기전도 특성

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

신순기 ^†

강원대학교 공학대학 신소재공학과

Soon-Gi Shin^†

Department of Advanced Materials Engineering, College of Samcheok, Kangwon National University, Samcheok, Gangwon-do, 245-711 Korea

E-mail:

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 1MHz. 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:percolation threshold;carbon black;polyethylene;conductivity;tunneling conduction

[References]

Song Y, Noh TW, Lee SI, Gaines JR, Phys. Rev. B, 33, 904 (1986)
Bottger H, Bryksin VV, Hopping Conduction in Solids, p.236, VCH, Verlagsgesellschaf (1985). (1985)
Efros AL, Shklovski BI, Phys. Stat. Sol. B, 76, 475 (1976)
Shin SG, Korean J. Mater. Res., 19(12), 644 (2009)
Shin SG, Kor. J. Inst. Met. Mater., (in press)
Reboul JP, Carbon Black-Polymer Composites, p.80, ed. Sichel EK, Marcel Dekker, Inc., New York (1982). (1982)
Prost N, Carbon Black, pp.280, ed. Donnet JB, Bansel RC, Wang MJ, Marcel Dekker, Inc., New York (1993). (1993)
Miyasaki K, Watanabe K, Jojima E, Aoda H, Sumita M, Ishikawa K, J. Mater. Sci., 17, 1610 (1982)
Yoshida K, Jpn. J. Appl. Phys., 30, 3482 (1982)
Stauffer D, Aharony A, Introduction to Percolation Theory, 2nd ed., p.884, Tayloer & Francis, London and Philadeiphia (1992). (1992)
Ehrburger-Dolle F, Lahsye JJ, Misono S, Carbon, 33, 1363 (1994)
Nakai T, Shiomoji T, Tanka M, Nakajiama K, Kohinata S, IMC 1994 Proceedings, Japan Omiya, p.167. (1994)
Kenta H, Nakajima T, Kawabe H, Ieda M, Theory of Dieelectric Phenomena, 23 ed., p.241, Jpn. Inst. Elect. (1995). (1995)
Ohtsuki T, Keyes T, J. Phys. A: Math. Gen., 17, L559 (1984)
Berman DJ, Imry Y, Phys. Rev. Lett., 39, 1222 (1977)
Nakagawa M, Polymer, 27, 97 (1978)
Bruggeman DA, Ann. Phys., 24, 636 (1935)

[Referenced By]

[Related Articles]

[1] Song Y, Noh TW, Lee SI, Gaines JR, Phys. Rev. B, 33, 904 (1986)

[2] Bottger H, Bryksin VV, Hopping Conduction in Solids, p.236, VCH, Verlagsgesellschaf (1985). (1985)

[3] Efros AL, Shklovski BI, Phys. Stat. Sol. B, 76, 475 (1976)

[4] Shin SG, Korean J. Mater. Res., 19(12), 644 (2009)

[5] Shin SG, Kor. J. Inst. Met. Mater., (in press)

[6] Reboul JP, Carbon Black-Polymer Composites, p.80, ed. Sichel EK, Marcel Dekker, Inc., New York (1982). (1982)

[7] Prost N, Carbon Black, pp.280, ed. Donnet JB, Bansel RC, Wang MJ, Marcel Dekker, Inc., New York (1993). (1993)

[8] Miyasaki K, Watanabe K, Jojima E, Aoda H, Sumita M, Ishikawa K, J. Mater. Sci., 17, 1610 (1982)

[9] Yoshida K, Jpn. J. Appl. Phys., 30, 3482 (1982)

[10] Stauffer D, Aharony A, Introduction to Percolation Theory, 2nd ed., p.884, Tayloer & Francis, London and Philadeiphia (1992). (1992)

[11] Ehrburger-Dolle F, Lahsye JJ, Misono S, Carbon, 33, 1363 (1994)

[12] Nakai T, Shiomoji T, Tanka M, Nakajiama K, Kohinata S, IMC 1994 Proceedings, Japan Omiya, p.167. (1994)

[13] Kenta H, Nakajima T, Kawabe H, Ieda M, Theory of Dieelectric Phenomena, 23 ed., p.241, Jpn. Inst. Elect. (1995). (1995)

[14] Ohtsuki T, Keyes T, J. Phys. A: Math. Gen., 17, L559 (1984)

[15] Berman DJ, Imry Y, Phys. Rev. Lett., 39, 1222 (1977)

[16] Nakagawa M, Polymer, 27, 97 (1978)

[17] Bruggeman DA, Ann. Phys., 24, 636 (1935)