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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Robotics

Background:

  • Active-cooling elastomers mimic vascular thermoregulation for heat dissipation.
  • Current limitations include low thermal conduction and poor adaptability.
  • Soft robotics and flexible electronics require efficient thermal management.

Purpose of the Study:

  • To develop a high-performance active-cooling elastomer with enhanced thermal conductivity and adaptability.
  • To create a liquid metal skeleton-based elastomer inspired by bone structure.
  • To implement a hydraulic-driven morphing strategy for conformal thermoregulation.

Main Methods:

  • Fabrication of elastomer with bicontinuous liquid metal Gyroid phases.
  • Utilizing a hydraulic-driven strategy for shape morphing and adaptation.
  • Integration with flexible thermoelectric devices.

Main Results:

  • Achieved high thermal conductivity up to 27.1 W/mK.
  • Demonstrated excellent stretchability with a strain limit over 600%.
  • Enabled conformal adaptation to complex surfaces via hydraulic pressure modulation.

Conclusions:

  • The liquid metal elastomer offers superior heat dissipation and adaptive cooling capabilities.
  • The developed material and strategy are suitable for flexible electronics, soft robots, and wearable thermoregulation.
  • Potential applications include soft grippers, thermal-energy harvesting, and head thermoregulation devices.