引用本文:
苏洪釪, 祝晓虹, 韦桂珍. 聚乙烯-炭黑导电材料的电阻-温度特性[J]. 应用化学,
1990, 7(5): 97-100.
Citation: Su Hongyu, Zhu Xiaohong, Wei Guizhen. ON THE RESISTANCE-TEMPERATURE BEHAVIOR OF POLIYETHYLENE-CARBON BLACK CONDUCTIVE COMPOSITES[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 97-100.
Citation: Su Hongyu, Zhu Xiaohong, Wei Guizhen. ON THE RESISTANCE-TEMPERATURE BEHAVIOR OF POLIYETHYLENE-CARBON BLACK CONDUCTIVE COMPOSITES[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 97-100.
聚乙烯-炭黑导电材料的电阻-温度特性
English
ON THE RESISTANCE-TEMPERATURE BEHAVIOR OF POLIYETHYLENE-CARBON BLACK CONDUCTIVE COMPOSITES
Abstract:
In this paper the influence of the-voltage on the resistance of polyethylene-carbon black composites has been studied, and thus the resistance-temperature behavior has been examined more accurately. The relationship between resistance and temperature could be expressed by an exponential formula:R=M. exp(N(t+80)/(110-t)), which is coincident with temperat-ure up to 10~30℃ below the M.P. of polyethylene depending on the carbon black content.The relationship between the expansion coefficient and temperature was compared with the PTC phenomenon of the materials. High expansion coefficient of the matrix is essential for the conductive composites to possess PTC effect.
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Key words:
- carbon black
- / polyethylene conductive composite
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