Negative Temperature Coefficient of PVC Filled with Carbon Black

Abstract:

PVC filled with carbon black (CB) composition were prepared by a conventional melt-mixing method. The effects of CB on the negative-temperature-coefficient (NTC) effect and the resistivity-temperature characteristic of PVC/CB composites were studied. Our present research suggests that percolation threshold can be obtained for the content of CB 10%. The reasons of NTC phenomenon were also investigated from point of view of polymer structure. We also discussed relationship between the current and voltage, that is, the I-U characteristic of the composites can be divided into two regions, ohmic and nonohmic according to the different content of CB and voltage.

• Periodical: Advanced Materials Research (Volumes 301-303)
• Pages: 1128-1132
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.301-303.1128
• Online since: July 2011
• Authors: Ji Xin Li
• Keywords: Carbon Black (CB), Negative Temperature Coefficient, Resistivity

References

[1] W. Thongruang, R. J. Spontak and C. M. Balik: Poly. Vol 43 (2002), p.3717.

[2] F. Lux: J. Mater. Sci. Vol 28 (1993), p.285.

[3] C. Peng, S. W. Zhang, D. Jewell and G. Z. Chen: Prog. Nat. Sci. Vol. 18 (2008), p.777.

[4] H. Tang, X.G. Cheng and Y. X. Luo: Eur. Poly. J. Vol 33(1997), p.1383.

[5] Y. Xi, H. Ishikawa, Y. Bin and M. Matsuo: Carbon, Vol 42, (2004), p.1699.

[6] W. H. Di, G. Zhang, J. Q. XU, Y. Peng, X. J. Wang and Z. Y. Xie : J. Poly. Sci., Part B: Polym. Phys., Vol. 41, (2003), p.3094.

[7] J. Zhang and S. Y. Feng : J. Poly. Sci., Part B: Polym. Phys., Vol. 90, (2003), p.3889.

[8] Tang, H. J. Appl. Poly. Sci. Vol. 51, (1994), p.1159.

[9] G. D. C. Csete de GyoÈ rgyfalva, A. N. Nolte and I. M. Reaney: J. Eur. Ceram. Soc., Vol. 19, (1999), p.857.

[10] S. Fritscha, J. Sarriasa, M. Brieua, J. J. Coudercb, J. L. Baudourc, E. Snoeckd and A. Rousseta : Solid State Ionics Vol. 109, (1998), p.229.

[11] J. B. Donnet : Carbon, Vol. 20, (1982), p.267.

[12] X. W. Zhang, R. Huang, B. H. Cai and S. M. Lai : J. Funct. Poly. Vol. 8, (1995), p.48.

[13] Y. Z. Shi, B. Fang, J. Yang, N. P. Chen and G. C. Wang : J. Funct. Poly. Vol. 11, (1998), p.55.

[14] J. Zhang, S. Y. Feng and X. Q. Wang: J. Appl. Poly. Sci., Vol. 94 (2004), p.587.