Small, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Abstract Auxetic conductive elastomers (ACEs) are appealing due to their unique negative Poisson's ratio (NPR) effects. Nevertheless, conventional ACEs often produced by the creation of geometric structures through pore‐forming techniques on elastomers, which substantially compromise mechanical and performance. Inspired composite structure skin comprising collagen fibers elastin, this study reports an integrated auxetic elastomer (IACE) composing a high‐modulus as skeleton low‐modulus soft matrix. Benefitting from covalent interlinkages topological entanglements at skeleton‐matrix interface, IACE is flat void‐free with no abrupt soft‐to‐hard transition. Compared alone, exhibits enhanced properties, including fracture stress 2.6 MPa, elongation break 457%, toughness 7.2 MJ m −3 . Furthermore, its behavior NPR effect consistently observed across wide strain range 0–85%. Leveraging ion transport pathway enabled deformation, demonstrates reliable sensing performance improved sensitivity over broad deformation range. This work presents promising strategy for developing robust interface strain, advancing potentials in intelligent flexible electronics.

Язык: Английский