Fig. 5: Performance analysis and sensing application of BPP hydrogel.
From: Cartilage-bioinspired tenacious concrete-like hydrogel verified via in-situ testing
a Property map of UTS versus tensile modulus, b property map of UCS versus compressive modulus, and c quantity map of raw materials versus processes for different kinds of PVA/PEG hydrogels. Data of other hydrogel materials were compiled from literature. d Performance comparisons of reported typical PVA/PEG hydrogels. e Real-time relative resistance change responding to cyclic compression tests with different strains (0–50%) at a fixed speed of 12 mm/min. f Fit indices of the BPP hydrogel sensor versus consecutive applied strains and forces (GF: gauge factor, R²: determination coefficient). g Cycling stability of the resistance signal of the BPP hydrogel sensor. h A prototype of an automated warning intelligent protective sensing system. i Real-time relative resistance change responding to shooting tests with different speeds.
