Tough and self-healing waterborne polyurethane elastomers via hydrogen bonds and oxime-carbamate design for wearable flexible strain sensors.

ABSTRACT: Self-healing waterborne polyurethane elastomers, as functional materials, have been widely applied in flexible wearable devices. However, inevitable crack damage during use significantly limits their service life. Achieving an optimal balance between mechanical strength and self-healing ability remains a major challenge in the development of high-performance self-healing polyurethane materials. In this study, a rigid-soft phase-separated structure with multilayered rigid and flexible supramolecular segments was designed using isophorone isocyanate (IPDI), dimethylglyoxime (DMG), and 6-methyl-1,3,5-triazine-2,4-diamine (AGM) as hard segments, and polytetramethylene ether glycol (PTMEG) as soft segments. AGM establishes a multi-hydrogen bonding network with urethane groups, and DMG introduce

SUBMITTER: Zhang W 

PROVIDER: S-EPMC11851271 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature