PTC Effect in HDPE/EPDM/CB Composites

Abstract

Abstract: Polymer positive temperature coefficient(PTC) material comprising conductive particles, e.g. carbon black(CB), dispersed in polymer matrix is suitable for use as electrical devices such as circuit overcurrent protection device, self-regulation heaters, sensors, etc.. In this paper, the PTCeffect of carbon black filled polyethylene and ethylene-propylene-diene terpolymer blends was studied. Effects of raw material ratio and type of carbon black were investigated. The distribution of CBin polymer matrix and the function of crystallites on PTCeffect were discussed.

Key words: Conductive polymer, PTC effect, HDPE, EPDM

CLC Number:

O631.2

TrendMD:

HE Xiu-Juan, WANG Li-Jie, LIU Zhi-Cheng, CHEN Xin-Fang . PTC Effect in HDPE/EPDM/CB Composites[J]. Chem. J. Chinese Universities, 2001, 22(1): 163.

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PTC Effect in HDPE/EPDM/CB Composites

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