Fatigue-free artificial ionic skin toughened by self-healable elastic nanomesh.

ABSTRACT: Robust ionic sensing materials that are both fatigue-resistant and self-healable like human skin are essential for soft electronics and robotics with extended service life. However, most existing self-healable artificial ionic skins produced on the basis of network reconfiguration suffer from a low fatigue threshold due to the easy fracture of low-energy amorphous polymer chains with susceptible crack propagation. Here we engineer a fatigue-free yet fully healable hybrid ionic skin toughened by a high-energy, self-healable elastic nanomesh, resembling the repairable nanofibrous interwoven structure of human skin. Such a design affords a superhigh fatigue threshold of 2950 J m^-2 while maintaining skin-like compliance, stretchability, and strain-adaptive stiffening response. Moreo

SUBMITTER: Wang J 

PROVIDER: S-EPMC9338060 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature