Electrospinning Machine| Constructing electrospun3Dliquid metaladhesion channel on stretchable yarns for broad-range strain- insensitivity smarttextiles

Challenge: Conductive fibers are crucial for smart textiles and wearable electronics, but achieving excellent elastic performance is challenging due to mismatches between substrates and conductive materials.

Method: Prof. Qin Xiaohong and researcher Ji Dongxiao's team at Donghua University proposed an adhesion channel strategy, using electrospinning as the core technology to achieve 3D control of liquid metal (LM) flow on yarn surfaces, allowing LM and yarn to deform synergistically.

Innovation 1: This method ensures the yarn maintains a low resistance of 0.082 Ω/cm and exhibits stable conductivity under wide strain ranges, with a resistance change (ΔR/R0) of only 0.703 at 600% strain. The yarn demonstrates electrical stability under various mechanical stresses (including twisting, bending, compression, and large-strain stretching cycles) and during washing.

Innovation 2: By modifying functional materials within electrospun fibers, the team showcased superior Joule heating effects for fabric color modulation, offering a viable solution for advanced smart textile design.

https://doi.org/10.1038/s41467-025-61444-3