Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (9): 1278.

• Articles • Previous Articles     Next Articles

The PTC Effect of Carbon Black Filled Vinyl Polymer

PIAO Jian-Hui1, TANG Hao1, YANG Hua-Li1, CHEN Xin-Fang1, LUO Yun-Xia2, LI Shu-Hua2   

  1. 1. Institute of Material Science, Jilin University, Changchun, 130023;
    2. Institute of Applied Chemistry, Academia Sinica, Changchun, 130022
  • Received:1991-09-29 Online:1992-09-24 Published:1992-09-24

Abstract: In this paper,the mechanism of positive temperature coefficient (PTC) effect is investigated by using carbon black filled low density polyethylene and ethylene-vinyl acetate copoly-mer.The influence of carbon black content on the resistivity at room temperature and PTCeffect as well as the influence of crosslinking on electrical reproducibility are also discussed.

Key words: Positive temperature coefficient, Semiconductor polymer, Carbon black

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