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<p>To address the challenge of integrating flexible electronics with wearable comfort, this study developed highly conductive, durable silk textiles. A hierarchical dual-conductive network was constructed via the sequential electrostatic self-assembly of carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) followed by the in situ polymerization of pyrrole. Leveraging the amphoteric nature of silk, the MWCNTs-COOH acted as a robust template for the polypyrrole layer, creating a synergistic fiber–nanotube–polymer architecture. The optimized composite fabric achieved a remarkably low surface resistance of 0.26&#xa0;kΩ/cm. Furthermore, it demonstrated exceptional UV shielding (UPF &gt; 267) and maintained significant conductivity after 30 standard wash cycles due to strong interfacial bonding. This scalable strategy offers a promising pathway for fabricating high-performance next-generation smart textiles.</p> Graphical abstract <p></p>

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Construction of hierarchical MWCNTs-COOH/polypyrrole dual-conductive networks on silk fibers for durable flexible electronics

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Chengchen Fu,
  • Bingjie Fan,
  • Jiliang Cao

摘要

To address the challenge of integrating flexible electronics with wearable comfort, this study developed highly conductive, durable silk textiles. A hierarchical dual-conductive network was constructed via the sequential electrostatic self-assembly of carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) followed by the in situ polymerization of pyrrole. Leveraging the amphoteric nature of silk, the MWCNTs-COOH acted as a robust template for the polypyrrole layer, creating a synergistic fiber–nanotube–polymer architecture. The optimized composite fabric achieved a remarkably low surface resistance of 0.26 kΩ/cm. Furthermore, it demonstrated exceptional UV shielding (UPF > 267) and maintained significant conductivity after 30 standard wash cycles due to strong interfacial bonding. This scalable strategy offers a promising pathway for fabricating high-performance next-generation smart textiles.

Graphical abstract