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Resistivity–volume expansion characteristics of carbon black-loaded polyethylene

✍ Scribed by Wei Dafu; Zhao Tiejun; Xiao-Su Yi

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
134 KB
Volume
77
Category
Article
ISSN
0021-8995

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✦ Synopsis

The resistivity and volume expansion of carbon black (CB)/high-density polyethylene (HDPE) composite with different CB volume fractions at different temperatures were measured simultaneously. A model based on Meyer's theory is proposed to explain the positive temperature coefficient resistance (PTCR) effect. The relationship between resistivity and volume expansion was determined. It was found that the phase change is the main cause of the PTC effect in the crystalline polymer PTC materials.

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