Advanced Science (Nov 2022)

Highly Thermally Conductive Adhesion Elastomer Enhanced by Vertically Aligned Folded Graphene

  • Huitao Yu,
  • Yiyu Feng,
  • Can Chen,
  • Heng Zhang,
  • Lianqiang Peng,
  • Mengmeng Qin,
  • Wei Feng

DOI
https://doi.org/10.1002/advs.202201331
Journal volume & issue
Vol. 9, no. 33
pp. n/a – n/a

Abstract

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Abstract Heat and stress transfer at an interface are crucial for the contact‐based tactile sensing to measure the temperature, morphology, and modulus. However, fabricating a smart sensing material that combines high thermal conductivity, elasticity, and good adhesion is challenging. In this study, a composite is fabricated using a directional template of vertically aligned folded graphene (VAFG) and a copolymer matrix of poly‐2‐[[(butylamino)carbonyl]oxy]ethyl ester and polydimethylsiloxane, vinyl‐end‐terminated polydimethylsiloxane (poly(PBAx‐ran‐PDMS)). With optimized chemical cross‐linking and supermolecular interactions, the poly(PBA‐ran‐PDMS)/VAFG exhibits high thermal conductivity (15.49 W m−1 K−1), an high elastic deformation, and an interfacial adhesion of up to 6500 N m−1. Poly(PBA‐ran‐PDMS)/VAFG is highly sensitive to temperature and pressure and demonstrates a self‐learning capacity for manipulator applications. The smart manipulator can distinguish and selectively capture unknown materials in the dark. Thermally conductive, elastic, and adhesive poly(PBA‐ran‐PDMS)/VAFG can be developed into core materials in intelligent soft robots.

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