| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1643890 | Materials Letters | 2014 | 4 Pages |
•A strong IPTC and a weak INTC has been achieved synchronously.•This result was ascribed to the large size of the CB coated PA6 electrospun network.•The position evolution of the scattered CB is also an important origin.•A model has been proposed to explain this fascinating result.
Temperature-resistivity behaviors of the carbon black (CB)/polyamide 6 (PA6)/high density polyethylene (HDPE) composite with a CB coated electrospun PA6 superfine fibrils network were investigated. A strong positive temperature coefficient (PTC) intensity together with a weak negative temperature coefficient (NTC) intensity has been achieved synchronously by the isothermal treatment (IT). This fascinating phenomenon is attributed to the large size of the conductive component-CB/PA6 fibrous networks and the position evolution of the scattered CB in the conductive polymer composite. A model has been proposed to explain this interesting result. Our work provides an effective approach to prepare a high performance thermal sensitive material.
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