Affiliation:
1. Huazhong University of Science and Technology Wuhan 430074 P. R. China
2. Key laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure Huazhong University of Science and Technology Wuhan 430074 P. R. China
3. State Key Laboratory of Advanced Electromagnetic Technology Huazhong University of Science and Technology Wuhan 430074 P. R. China
4. Institute of Chemistry of New Materials of National Academy of Sciences of Belarus Minsk 220084 Belarus
Abstract
AbstractSkin, characterized by its distinctive gradient structure and interwoven fibers, possesses remarkable mechanical properties and highly sensitive attributes, enabling it to detect an extensive range of stimuli. Inspired by these inherent qualities, a pioneering approach involving the crosslinking of macromolecules through in situ electron beam irradiation (EBI) is proposed to fabricate gradient ionogels. Such a design offers remarkable mechanical properties, including excellent tensile properties (>1000%), exceptional toughness (100 MJ m−3), fatigue resistance, a broad temperature range (−65–200°C), and a distinctive gradient modulus change. Moreover, the ionogel sensor exhibits an ultra‐fast response time (60 ms) comparable to skin, an incredibly low detection limit (1 kPa), and an exceptionally wide detection range (1 kPa–1 MPa). The exceptional gradient ionogel material holds tremendous promise for applications in the field of smart sensors, presenting a distinct strategy for fabricating flexible gradient materials.
Funder
National Natural Science Foundation of China
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry