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Design and synthesis of the polyaniline interface for polyamide 66/multi-walled carbon nanotube electrically conductive composites

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Abstract

A polyaniline interface had been designed and built between multi-walled carbon nanotubes (MWCNTs) and polyamide 66 (PA66) in order to help in the dispersion of MWCNTs in PA66 and improve the interfacial combination between them. Transmission electron microscopy characterizations indicated that functionalized MWCNTs (f-MWCNTs) could be well-distributed in PA66 matrix and the interfacial boundary between them was indiscernible. The mixing conditions, such as f-MWCNT content, temperature, and mixing speed, played important roles in determining the formation of the conductive network and the electrical conductivities of PA66/f-MWCNT composites synthesized. A continuous conductive network was formed at 10 wt% f-MWCNT content, and the corresponding PA66/f-MWCNT composite exhibited an electrical conductivity of 8 orders of magnitude higher than pure PA66. The conducting mechanism agreed well with a thermal fluctuation-induced tunneling model.

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Acknowledgments

The authors are grateful to the support of National Natural Science Foundation of China (no. 51103160).

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Authors and Affiliations

  1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China

    Hua Wang, Lei Wang, Xingyou Tian & Kang Zheng

  2. Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315040, China

    Ruoxi Wang

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  1. Hua Wang
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  2. Lei Wang
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  3. Ruoxi Wang
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  4. Xingyou Tian
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  5. Kang Zheng
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Correspondence to Hua Wang.

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Wang, H., Wang, L., Wang, R. et al. Design and synthesis of the polyaniline interface for polyamide 66/multi-walled carbon nanotube electrically conductive composites. Colloid Polym Sci 291, 1001–1007 (2013). https://doi.org/10.1007/s00396-012-2822-8

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  • DOI: https://doi.org/10.1007/s00396-012-2822-8

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