Abstract
Multiwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious positive temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative temperature coefficient (NTC) effect of the MWNT/HDPE composite at temperature above the melting temperature of HDPE was much less obvious and could be further eliminated after 80 kGy γ -ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. © 2005 American Institute of Physics.
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CITATION STYLE
He, X. J., Du, J. H., Ying, Z., Cheng, H. M., & He, X. J. (2005). Positive temperature coefficient effect in multiwalled carbon nanotube/high-density polyethylene composites. Applied Physics Letters, 86(6), 1–3. https://doi.org/10.1063/1.1863452
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